Who Decided Who Was Qualified to Heal in Japan?

In 1819, a young man named Hirota Denryō entered Shunrinken, the private medical school of the celebrated surgeon Hanaoka Seishū. Hirota did more than listen to lectures. Hanaoka judged him capable enough to edit a large collection of prescriptions, completed in 1821. Hirota then recorded cases he encountered at the school between 1822 and 1824: operations, house calls, epidemics, and patients who had traveled long distances for treatment.^[1]

Nothing in this episode resembles a modern national licensing examination. Yet it is not a story of a society unable to distinguish training from ignorance. Hirota entered a recognized teaching relationship, worked under a famous practitioner, handled specialized texts, observed cases, and accumulated a record of supervised experience. His competence became legible through a school and a teacher.

That arrangement was powerful, but it had limits. A reputation that meant something in one network might be difficult to compare with another. A domain physician, a private-town doctor, a surgeon trained in a particular lineage, and a practitioner of Dutch-style medicine could all claim expertise on different grounds. By the late nineteenth century, the new Meiji government wanted something more portable: a qualification that would mean the same thing to officials across the country.

Japan's history of medical credentials was therefore not a move from “no standards” to “standards.” It was a change in who possessed the authority to certify competence, what evidence counted, and how far that judgment could travel.

Shunrinken shows how training could be both personal and institutional in the late Tokugawa period. Hanaoka's practice attracted patients and pupils from beyond his immediate locality. Hirota came from Chikuzen, in northern Kyushu, to study in Kii. His surviving Kenbunroku records a school in which treatment and education were intertwined.^[1]

A student learned from the teacher's cases, prescriptions, texts, and techniques. This kind of training did not produce a nationally standardized certificate. It produced something else: membership in a chain of instruction.

That chain mattered because medical knowledge was not simply published and picked up by anyone in identical form. Some techniques were transmitted through manuscripts or oral instruction. A teacher's school could preserve preferred prescriptions, interpretations, and clinical routines. Students copied notes and carried them home. A successful pupil extended the teacher's authority geographically, while also creating the possibility that the method would change in new hands.

Other schools worked similarly even when their medicine differed. Research on the physician Murai Chinjū shows him studying under Yoshimasu Tōdō in Kyoto and later teaching Tōdō's medicine through his own private school in Kumamoto.^[2] The medical lineage was neither a state diploma nor merely a family inheritance. It was a social technology for saying: this person learned from someone whose knowledge we recognize.

The weakness was comparison. Suppose two physicians came from rival schools. Their teachers might disagree about diagnosis, prescriptions, anatomy, or surgery. A patient could judge by family recommendation, social standing, prior results, price, accessibility, or the reputation of the lineage. A domain could appoint one as an official physician. None of those mechanisms required everyone in Japan to agree on a single curriculum.

That pluralism encouraged experimentation, but it could also make competence difficult to measure outside the network that produced it. The credential was thick with context. To understand why Hirota mattered, one needed to know Hanaoka, Shunrinken, the work done there, and the pupil's place within it.

A modern license would deliberately strip away much of that context. Its power would come from being thinner—and more portable.

Private schools were only part of the medical world. Domains operated schools. The shogunate employed physicians. The growth of Dutch studies created new sites of instruction, and political authorities increasingly saw medical knowledge as relevant to military and administrative strength.

Juntendo illustrates the transition. Sato Taizen established a Dutch-style medical school in Edo in 1838 and later moved it to Sakura. A recent study of its first three directors describes successive stages in which translations, clinical practice, Nagasaki training, and eventually study in Germany changed what the school taught.^[3]

This was institutionalization before national licensing. A school could organize a curriculum and a hospital could concentrate cases. A domain could send retainers to learn. Students could acquire reputations through the places and people with whom they studied. Yet there was still no single authority whose permission transformed every new practitioner across the country into a doctor.

The shogunate's Western Medical School developed through another route. Fukuda Maiko traces it to the Otamagaike Vaccination Institute, founded privately by Dutch-style physicians in May 1858. The institute received official authorization in July 1860, became a shogunal institution, and was later renamed the Western Medical School and then the Medical School. Its functions were inherited by the Meiji government and ultimately fed into the institutional ancestry of the University of Tokyo's Faculty of Medicine.^[4]

The sequence is revealing. A group of practitioners created an institution first; the government then absorbed it. Expertise moved upward into official organization rather than being invented by a decree.

At the same time, the Tokugawa state and domains faced urgent practical needs. Kim Ock Joo and Miyagawa Takuya emphasize the late-Edo expansion of Western-style medical training through places such as Tekijuku, domain schools, Nagasaki, and shogunal institutions, especially as authorities needed military doctors and hospitals during the political crisis of the 1850s and 1860s.^[5]

The resulting landscape was more organized than a collection of independent healers but less standardized than a modern profession. A physician could possess a domain post, a teacher's endorsement, a school background, published learning, or clinical reputation. These signals overlapped without collapsing into one credential.

When the Meiji government sought to build a national medical administration, it inherited both a problem and a resource: many practicing doctors already existed, and their qualifications had been produced by systems the new state did not control.

The Meiji government's 1874 Isei, often translated as the Medical System or Medical Code, marked a fundamental change. It set a national direction for medical administration and placed Western medicine at the center of the new qualification structure.^[5][6]

The attraction of a standardized credential was not hard to see. A government recruiting physicians for public institutions, military service, or a national system of health administration needed judgments that could travel. An official in one prefecture could not personally investigate every applicant's teacher and lineage. Examinations and recognized schools could turn competence into paperwork.

But the state faced an immediate contradiction. It wanted to change the basis of medical qualification while relying on thousands of practitioners trained under the old basis.

A Japan International Cooperation Agency historical review, drawing on the Ministry of Health and Welfare's centennial history, reports that in 1874 roughly 80 percent of Japan's doctors—23,015 out of 28,262—were practitioners of kampō medicine unfamiliar with Western medicine as defined by the new system.^[6] Whatever the government's long-term preference, removing most existing doctors from practice was not a practical way to provide medical care.

The solution was transition rather than instant replacement. The new system recognized more than one route. Graduates of approved Western-style medical schools could qualify through their education and practical experience, while examination routes existed for others. Existing traditional practitioners received provisional recognition rather than being expelled overnight.^[6]

This compromise shows what a license actually does. It does not merely identify knowledge. It distributes the right to continue working.

If the government had required every existing doctor to pass a new Western examination immediately, a credential reform would have become a massive withdrawal of medical labor. By grandfathering or provisionally recognizing existing practitioners, officials separated two questions: who may keep treating patients now, and what training should future entrants need?

That distinction made reform slower, but it also made it possible.

Once examinations and approved schools became routes to medical practice, the state gained leverage over education. A school no longer mattered only because patients or pupils respected its teacher. It could matter because graduation affected legal eligibility.

The JICA historical review describes a system in which private and local schools trained students for licensing examinations. By 1879, it counts forty-six such schools. In 1882, the government tightened the relationship between schooling and qualification: exemption from the licensing examination depended on graduating from a school meeting specified conditions, including teaching staff connected to the emerging university system.^[6]

The effect reached backward into the classroom. If legal qualification depended on an approved institution, the state did not need to inspect every clinical decision by every student. It could regulate the institutions producing future doctors.

That was a very different mechanism from Shunrinken. Hanaoka's school derived authority from Hanaoka's expertise, successful practice, and network of pupils. A late-Meiji school increasingly had to demonstrate that it fit criteria defined beyond the personality of its master.

This did not make teachers unimportant. It changed the scale at which their authority operated. A professor's standing now existed inside a system of university departments, designated colleges, curricula, and government rules.

The transition continued for decades. In 1882, regulations further restricted new entry toward Western-style medical education. In 1914, the licensing examination route was abolished and new licenses were tied to graduation from medical universities and designated medical colleges.^[6]

That final step is counterintuitive. Examinations are often treated as the purest form of meritocratic standardization. Yet Japan temporarily moved away from a separate licensing examination. The educational institution itself became the credentialing filter.

The question “Who decides whether this person is qualified?” had shifted again. A teacher once answered through apprenticeship; then examiners did; now approved schools and the state that designated them shared the answer.

Standardizing qualification solved one problem while exposing another. A valid credential could become nationally legible without placing a doctor where one was needed.

The JICA review notes that in 1936 there were 3,655 municipalities without a doctor, about 30 percent of Japanese cities, towns, and villages by its count.^[6] The statistic should not be read as proof that earlier arrangements distributed practitioners better; the categories and data differ. It does show that professional standardization did not automatically produce geographic access.

This matters because credentials and care answer different questions.

A licensing system asks whether someone has met the conditions to practice. A patient asks whether a practitioner is available here, now, at a price and distance that make treatment possible. Raising the cost and duration of training can improve standardization while making entry harder. Expanding schools can increase numbers while creating concerns about quality. Requiring uniform credentials can make practitioners comparable while concentrating them around institutions and markets.

The Meiji and prewar state repeatedly had to balance these goals. The same JICA account describes the long transition from traditional practitioners to school-trained physicians as taking roughly fifty to sixty years. By 1942, it records 44,897 medical-school graduates among 50,676 doctors.^[6]

The change was enormous, but it was not a switch thrown in 1874. People treated patients throughout the transition. Older practitioners aged out. New schools expanded. Examination routes narrowed. Designated institutions produced larger shares of the profession.

A credential system became powerful not when it was announced, but when enough of the medical workforce had actually passed through it.

The end of the Second World War produced another reversal. Before 1914, examinations had been one route into practice. After 1914, graduation from recognized institutions became the principal basis of licensing. In the postwar occupation and reconstruction, Japan introduced a national qualifying examination again.

The JICA review dates the new system to 1946–47: an internship system began in 1946, and national examinations were launched in 1947 for candidates who had completed the required internship.^[6] The purpose was quality control at a moment when wartime expansion had rapidly increased the number and variety of medical schools.

This is useful because it prevents us from imagining professionalization as a one-way march toward a single perfect credential. Different systems solved different weaknesses.

An examination can test candidates across schools but may struggle to measure clinical judgment. School accreditation can influence years of training but may permit uneven standards among institutions. Supervised clinical work can test practice more directly but depends on the quality of the supervisors and hospitals. Modern medical qualification combines these mechanisms because none is sufficient by itself.

Japan's postwar framework increasingly placed the final legal authority in the central state. JICA contrasts this with systems where local governments or professional bodies have larger licensing roles and notes that Japan's medical licensing rules are centrally legislated and administered.^[6]

Yet the state still does not personally teach every doctor. Medical schools, hospitals, faculty members, examination committees, and clinical institutions remain essential. The national license is the last portable statement in a much longer chain of judgments.

In that sense, the modern system is less alien to Hirota's world than it first appears. Someone still has to watch a student work. Someone still has to decide whether a mistake reveals ignorance or is part of learning. Someone still has to transmit techniques that cannot be reduced to a written answer.

What changed is that those judgments now feed into an authorization whose validity does not depend on knowing the teacher personally.

Who decided who was qualified to heal in Japan?

At different times, the answer could be a teacher, a medical household, a domain, a shogunal institution, an examination board, an approved school, or the central government. Often several of them operated at once.

The most important change was not simply stricter standards. It was portability.

Hirota Denryō's training at Shunrinken was meaningful because people knew what Hanaoka Seishū's school represented. The credential was embedded in a relationship. Late-Tokugawa institutions such as Juntendo and the Western Medical School widened the scale of organized teaching, but authority remained plural. The Meiji state then tried to make qualification legible beyond those networks by establishing common rules for new entrants. Because it could not replace the existing medical workforce at once, it created transitional routes and allowed old and new systems to coexist.

By the early twentieth century, approved medical education itself became the dominant gateway. After 1945, a national examination was added again, not because schools had ceased to matter, but because the state wanted another common checkpoint across them.

Each change gained something and lost something.

A teacher's judgment can be rich in direct knowledge of a pupil but hard for strangers to verify. A school diploma can summarize years of study but depends on confidence in the school. An examination is comparable across candidates but samples only some abilities. A state license can travel nationwide but cannot tell a patient whether this particular doctor is kind, careful, experienced with this illness, or available nearby.

That last gap is important. Qualification never eliminated judgment from medicine. It relocated it.

The modern patient does not need to know the entire lineage through which a physician learned anatomy, surgery, diagnosis, and pharmacology. Institutions have already made many of those judgments upstream. A license asks the public to trust that chain.

In 1819, Hirota entered a school whose master personally embodied much of its authority. Two centuries later, no single person could plausibly embody the institutions behind a Japanese medical license. That is the achievement—and the trade-off—of standardization.

The credential became easier to carry because the system carrying it became much larger.