Doctors and health care providers in Boston, MA
41,865 individual NPPES records list a practice address in Boston, 1st of 406 Massachusetts cities. The largest group is students in training: 6,126, 15% of the city's records, against 5% across Massachusetts. Page 398 of 838.
The 8 largest groups in Boston
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Boston in Massachusetts
- Rank in Massachusetts1st of 406 cities by records
- Share of the state19.1% of Massachusetts's records
- Specialties present25 or more taxonomy codes
- Top three groups24.7% of all records
- Students in training rank1st of the 10 Massachusetts cities with the most
Compared with Massachusetts as a whole, Boston has 2.9× the state's share of student in an organized health care education/training program records and 0.23× its share of mental health counselor records.
Providers in Boston, alphabetically
- Regina Koch, M.D.Vascular & Interventional Radiology Physician1649430208
- Bharati Kochar, M.D.Gastroenterology Physician1346531209
- Bruce Kocher, PA-CPhysician Assistant1548457799
- Mininder Kocher, MDPediatric Orthopaedic Surgery Physician1164451597
- Olivier Nicolas Kocher, M.D.Anatomic Pathology Physician1669586566
- Natalia Kocherovsky, NPAdult Health Nurse Practitioner1902133390
- Michael KochisStudent in an Organized Health Care Education/Training Program1952938219
- Hillary Kocoloski, PT, DPTPhysical Therapist1952434482
- Jake KocotMental Health Counselor1235507112
- Alexander Koculym, MDDiagnostic Radiology Physician1750807772
- Shirely KoczanAdult Health Nurse Practitioner1962712745
- Bhavani Kodali, MDAnesthesiology Physician1497796288
- Matthew Kodsy, DDSDentist1700560554
- Vidyasagar Koduri, MDMedical Oncology Physician1043448293
- Anisha KodwaniStudent in an Organized Health Care Education/Training Program1700632890
- Rachel Koebler, LCSWClinical Social Worker1558585315
- Leah Koechlin, RPA-CPhysician Assistant1669135083
- Ashley KoegelStudent in an Organized Health Care Education/Training Program1659613974
- Susan Koegler, R.N., M.S.Oncology Registered Nurse1063500429
- Julia Koehler, MDPediatric Infectious Diseases Physician1679655047
- Rikki Koehler, MDOrthopaedic Surgery Physician1326579004
- Diane Koeller, MS, MPH, LCGCGenetic Counselor (M.S.)1164945259
- Maria Koen, NPFamily Nurse Practitioner1891833935
- Caroline Koenig, FNP-BCFamily Nurse Practitioner1831853092
- John Koenig, MDInternal Medicine Physician1245962620
- Julie Koenig, MDRadiation Oncology Physician1043875495
- Serena Koenig, M.D.Internal Medicine Physician1215962543
- Kathleen KoenigsStudent in an Organized Health Care Education/Training Program1790361731
- Victoria KoenigsbergerStudent in an Organized Health Care Education/Training Program1356285969
- Dorothy Koerner, L.I.C.S.W., MSWClinical Social Worker1790859049
- Frederick Koerner, MEAnatomic Pathology Physician1821088931
- Taylor Koerner, MDPediatric Cardiology Physician1700272739
- Margaret KoesterStudent in an Organized Health Care Education/Training Program1083473763
- Kathryn Koestner, NPGerontology Nurse Practitioner1477106086
- Alec Koffer, MDEmergency Medicine Physician1942730007
- Zachary Kofos, DMDDentist1013533397
- Joyleen KogaRegistered Dietitian1205758182
- Laura Kogelman, MDInfectious Disease Physician1063528768
- Gabrielle Kogon, RN, BSNRegistered Nurse1255270153
- Angela Su-Mei Koh, M.B.B.S., M.R.C.PStudent in an Organized Health Care Education/Training Program1447554266
- Daniel KohStudent in an Organized Health Care Education/Training Program1992507487
- Eun Kyung KohEndocrinology, Diabetes & Metabolism Physician1306074968
- Howard Koh, MD MPHDermatology Physician1093778482
- Katherine Koh, MD, MSCPsychiatry Physician1245643345
- Madelyn KohDentist1841056959
- Sukjin Koh, MDVascular & Interventional Radiology Physician1053745455
- Tsingyi Koh, PHARM.DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1821367103
- Daniel Kohane, MD PHDPediatric Critical Care Medicine Physician1457310393
- Isaac Kohane, MD, PHDEndocrinology, Diabetes & Metabolism Physician1619162328
- Mayumi KohiyamaStudent in an Organized Health Care Education/Training Program1457104028
The largest Massachusetts cities
- Worcester13,166
- Springfield8,553
- Cambridge5,145
- Brockton4,287
- Milford3,459
How to read this directory
Boston, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 41,865 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Boston - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Boston practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Boston is weighted toward Student in an Organized Health Care Education/Training Program (6,126 clinicians, followed by Internal Medicine Physician with 2,320 and Clinical Social Worker with 1,906). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Massachusetts's population, Boston reports roughly 598 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Massachusetts's most common specialties, Counselor is the most prominent one with no provider currently listing a Boston practice address, a coverage gap Boston patients typically fill by traveling to a larger nearby hub.
For Boston patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Boston, MA?
There are 41,865 registered healthcare providers in Boston, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Boston?
The most common specialties in Boston are Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Clinical Social Worker, Physician Assistant, Anesthesiology Physician. Student in an Organized Health Care Education/Training Program has the most providers with 6,126.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.