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 186 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
- Marcela Delcarmen, MDObstetrics & Gynecology Physician1215927678
- Christina DelceaDentist1457156291
- Deborah Dele-Oni, DO, MAStudent in an Organized Health Care Education/Training Program1891554234
- Melissa Deleon, LCSWSocial Worker1508441429
- Robert Deleon-KollmerStudent in an Organized Health Care Education/Training Program1437994043
- Kimberly Deleonardis, M.S., C.G.CGenetic Counselor (M.S.)1639228349
- Ross Deleonardo, MDPsychiatry Physician1437318599
- Paula Delerme, M.S., C.G.C.Genetic Counselor (M.S.)1760741052
- Sophia Delevie-Orey, CNM, WHNPMidwife1639841463
- Amaris DelgadoDoula1770318115
- Arlin Delgado, MDMaternal & Fetal Medicine Physician1194288993
- Elliott Delgado, MD, MSNeurology Physician1841937067
- Hernan Delgado, M.D.Pediatrics Physician1104851179
- Janice Delgado, PSYDClinical Psychologist1134716764
- Irene Delgado Tseretopoulos, PHDClinical Psychologist1265693261
- Helen Delichatsios, MDInternal Medicine Physician1366433724
- Claude DelilleStudent in an Organized Health Care Education/Training Program1316893746
- Christy Delillo, NPPsychiatric/Mental Health Nurse Practitioner1033476437
- Stephen DelisiForensic Psychologist1255823795
- Alisha DelissaintBehavior Technician1740757566
- Natalie DelivanisDentist1881924371
- Wayne Dell, M.D.Diagnostic Radiology Physician1043847197
- Elizabeth Dell IsolaPeer Specialist1528834504
- Heather Dell'Orfano, PHARMD., BCPSPharmacotherapy Pharmacist1376713255
- Linda Della Porta, OTR/LOccupational Therapist1598066896
- Katherine Dellaporta, PSY.D.Psychologist1396052940
- Justine Dellaria, MSW, LICSWClinical Social Worker1124307848
- Benjamin Dellaripa, MDStudent in an Organized Health Care Education/Training Program1306787767
- Paul Dellaripa, MDRheumatology Physician1093727950
- John Delle Chiaie, LICSWClinical Social Worker1326063520
- Ashley Dellinger, OTR/LPhysical Rehabilitation Occupational Therapist1043747702
- Robert Dello Russo, PH.D., LADC IAddiction (Substance Use Disorder) Psychologist1609867670
- Isaiah Dellorfano, PHARMDPharmacist1629893029
- Nicholas Dellorusso, DMDOral and Maxillofacial Surgery (Dentist)1295725596
- Francis Delmonico, MDSurgery Physician1518958446
- Ottavia Delmonte, MDStudent in an Organized Health Care Education/Training Program1376800490
- Bennett DelongStudent in an Organized Health Care Education/Training Program1699515171
- Brynn Delorenzo, PHDPsychologist1306463666
- Cheryl DeloreyMental Health Counselor1013716489
- Kelley DeloreyFamily Nurse Practitioner1356912463
- Taylor Delosh, OTR/LOccupational Therapist1871135996
- Amanda DeloureiroFamily Medicine Physician1598008518
- Jeffrey Delovey, RNInfusion Therapy Registered Nurse1932906468
- Fleuris Delrosario, LCSWSocial Worker1285140509
- Jessica Delrose, RNRegistered Nurse1467390351
- David Delsesto, D.O.Internal Medicine Physician1730374398
- Hajar Delshad, PA-CPhysician Assistant1801868914
- Timothy Delsol, M.D.Anesthesiology Physician1790006948
- Kim Deltano, CNMAdvanced Practice Midwife1669449682
- Michael Deluca, M.D.Student in an Organized Health Care Education/Training Program1013581719
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.