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 405 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
- Siena Krey, DOStudent in an Organized Health Care Education/Training Program1326897638
- Anna Kreynin, MDStudent in an Organized Health Care Education/Training Program1720927106
- Paula Krick, RNRegistered Nurse1407998958
- Samantha KridgenSpeech-Language Pathologist1962174771
- Ari Kriegel, M.D.Hospitalist Physician1801243613
- Gila Kriegel, M.D.Internal Medicine Physician1750328944
- David Krieger, M.D.Internal Medicine Physician1346219326
- Kayla Krieger, CNPNurse Practitioner1144960634
- Penina KriegerStudent in an Organized Health Care Education/Training Program1174263818
- Barry KriegsmanOtolaryngology Physician1487233219
- Jennifer Krier, PH.D.Clinical Social Worker1235533977
- Joel Krier, MDClinical Genetics (M.D.) Physician1558527762
- Shirley Kring, M.D.Family Medicine Physician1043242571
- Lisa Krinsky, MSW, LICSWSocial Worker1962989715
- Sylvia Krinsky, MDChild & Adolescent Psychiatry Physician1215161351
- Karen Krinsley, PH.D.Addiction (Substance Use Disorder) Psychologist1043229842
- Prithviraj Krishnamoorthi, B.D.S, MSDDentist1346498193
- Kalpathy Krishnamoorthy, MDNeurology Physician1760459176
- Kaarkuzhali Krishnamurthy, M.D.Clinical Neurophysiology Physician1649227356
- Bhargavi Krishnan, MDAnesthesiology Physician1922075563
- Chandrasekharan Krishnan, M.D.Glaucoma Specialist (Ophthalmology) Physician1548225139
- Kumar Krishnan, MDGastroenterology Physician1609085240
- Monica Krishnan, MDRadiation Oncology Physician1518126952
- Parvathy Krishnan, MDNeonatal-Perinatal Medicine Physician1669968343
- Rahul Krishnan, MDDiagnostic Radiology Physician1861020976
- Sruthi Krishnan, DDS/BDSDentist1346586419
- Rajiv Krishnaswami, M.DInfectious Disease Physician1225443468
- Eyal Krispin, MDMaternal & Fetal Medicine Physician1558982744
- Joshua KristiansenProsthodontics1902161250
- Angela KristoStudent in an Organized Health Care Education/Training Program1972305183
- Gentian KristoSurgical Critical Care Physician1841480704
- Stylianos Krithinakis, D.D.S.Dentist1336472570
- Amy Kritzer, MDClinical Genetics (M.D.) Physician1700044336
- Michael Kritzer-Cheren, MD/PHDPsychiatry Physician1578950549
- Laura Krivicich, MDOrthopaedic Surgery Physician1790426435
- Deborah Krivitsky, MS,RD,LDNRegistered Dietitian1851827612
- Peter Kriz, MDPediatric Sports Medicine Physician1881681310
- Janice Krohn, MS, C ANPAcute Care Nurse Practitioner1780790980
- Aleksandra Krokhmal, MDStudent in an Organized Health Care Education/Training Program1205333127
- Richard Krolewski, M.D.,PH.D.Neurology Physician1083976757
- Danielle Kroll, MDStudent in an Organized Health Care Education/Training Program1801655188
- David Kroll, M.D.Psychiatry Physician1336381078
- William KromkaPsychiatry Physician1558822593
- Katie Krone, M.D.Pediatric Pulmonology Physician1841585684
- Sophie Kronen, MDStudent in an Organized Health Care Education/Training Program1407658925
- Frannie Kronenberg, M.D.Internal Medicine Physician1467671248
- Henry Kronenberg, MDEndocrinology, Diabetes & Metabolism Physician1609867902
- Ariella Krones, MDInternal Medicine Physician1922494244
- Adam Kronish, MDPediatric Adolescent Medicine Physician1821654559
- Daniel Kronish, MDPediatric Hematology & Oncology Physician1184702722
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.