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 403 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
- Sarah Kovan, MSCStudent in an Organized Health Care Education/Training Program1942950597
- Kellie Kovarik, MSWClinical Social Worker1114743259
- Marina Kovarsky, LICSWClinical Social Worker1538289459
- Eleni KovatsisPediatrics Physician1770285447
- Pete Kovatsis, MDAnesthesiology Physician1700845518
- Suzanne Koven, MDInternal Medicine Physician1790764561
- Linda Kovitch, CRNACertified Registered Nurse Anesthetist1689649428
- Agnieszka KowalczykPediatric Sports Medicine Physician1205243078
- Ashley Kowalczyk, NPWomen's Health Nurse Practitioner1053082990
- John Kowalczyk, M.D.Anesthesiology Physician1508124728
- Kyle KowalskiCase Manager/Care Coordinator1477389518
- Kathryn Kowalsky, LICSWClinical Social Worker1417424615
- Devan KowdleyPediatrics Physician1851239602
- Ashleigh Kowtoniuk, PA-CPhysician Assistant1255808218
- Harita KoyaClinical Social Worker1235093485
- Semra Koymen, MASpeech-Language Pathologist1851681589
- Anne Kozak, PAPhysician Assistant1962033654
- Benjamin Kozak, MDDiagnostic Radiology Physician1487015384
- Harry Kozakewich, MDCytopathology Physician1043229214
- Saliha Kozan, PHDPsychologist1932459377
- Mariel Kozberg, MDVascular Neurology Physician1710336003
- Lindsay Kozek, MD, PHDOphthalmology Physician1346833159
- Kyle Kozelka, LICSWClinical Social Worker1124544754
- Henry Koziel, M.D.Specialist1306875430
- Elizabeth Kozik, LMHCMental Health Counselor1942498969
- Elliott Kozin, MDOtolaryngology Physician1013200740
- Robert Koziol, RPHPharmacist1750160453
- Sophia KozlowskyStudent in an Organized Health Care Education/Training Program1760237226
- David Kozono, M.D., PH.D.Radiation Oncology Physician1164565115
- Shuei Kozu, LICSW, MHAClinical Social Worker1356447379
- Olga Kozyreva, M.D.Hematology (Internal Medicine) Physician1487758348
- Lauren KracoffOccupational Therapist1124623988
- Megan KradasPsychiatric/Mental Health Nurse Practitioner1093331910
- Richard Kradin, MDPulmonary Disease Physician1053301325
- Kristen Kraemer, PHDPsychologist1134718307
- Michelle Kraemer, PNPPediatric Nurse Practitioner1295048866
- Alfred Kraft, DMDGeneral Practice Dentistry1043323645
- Andrew Kraft, MDNeurology Physician1952861148
- Jeffrey Kraft, ATCAthletic Trainer1891122511
- Kenneth Kraft, PHDClinical Psychologist1093925869
- Stefan KraftAnatomic Pathology Physician1881761872
- Amanda Krahn, DPTPhysical Therapist1720767981
- Kelly Kraines, PAPhysician Assistant1457827115
- Katherine Krajewski, M.D.Diagnostic Radiology Physician1912167693
- Megan KrajewskiAnesthesiology Physician1699919613
- Eric Krakauer, MDHospice and Palliative Medicine (Family Medicine) Physician1649251000
- Douglas Krakower, MDInfectious Disease Physician1265568943
- Thalia Krakower, M.D.Internal Medicine Physician1821288325
- Cody Kramer, PA-CPhysician Assistant1881076677
- Daniel Kramer, MD, MPHClinical Cardiac Electrophysiology Physician1710013495
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.