NPPES file of Aug 9, 2026

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 448 of 838.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Rui Han Liu, MDOtolaryngology Physician1992211999
  2. Shan Liu, MDEmergency Medicine Physician1538140058
  3. Shiying Liu, MDInternal Medicine Physician1760991939
  4. Songyun Liu, PHARMDPharmacist1548102999
  5. Stephanie Liu, M.D.Dermatology Physician1285823245
  6. Tonia LiuInternal Medicine Physician1073451811
  7. Tracie LiuStudent in an Organized Health Care Education/Training Program1467145920
  8. Victor Liu, MDStudent in an Organized Health Care Education/Training Program1790279412
  9. Wenxi Liu, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1093186215
  10. Xi Liu, DNP, APRN, FNP-BCFamily Nurse Practitioner1477996163
  11. Xiaoshuang LiuStudent in an Organized Health Care Education/Training Program1700621265
  12. Xichong Liu, MDHospitalist Physician1902509870
  13. Xinyi LiuMental Health Counselor1669175113
  14. Yan LiuCertified Registered Nurse Anesthetist1609646157
  15. Yi Liu, PSYDPsychologist1114761400
  16. Yilin Liu, DMDStudent in an Organized Health Care Education/Training Program1760289276
  17. Yuxin Liu, M.D.Medical Oncology Physician1346776143
  18. Zhuo Liu, M.D.Internal Medicine Physician1245680115
  19. Zong Cheng Liu, MS RDN LDNRegistered Dietitian1568152056
  20. Gabrielle Liverant, PH.D.Clinical Psychologist1912197211
  21. Samantha Livermore, PA-CPhysician Assistant1639840978
  22. Martha Livesay, RNRegistered Nurse1457760266
  23. Kristin Livingston, M.D.Orthopaedic Surgery Physician1841428257
  24. Nicholas Livingston, PH.D.Clinical Psychologist1376189845
  25. Zoe Livingston, NPNurse Practitioner1801495817
  26. Sonya LivitzGeneral Practice Dentistry1497507883
  27. Helen Livson, DMDDentist1982875472
  28. Anabel Liyen Cartelle, MDStudent in an Organized Health Care Education/Training Program1164002796
  29. Edgar LizarraldeCounselor1316290869
  30. Meleke LizikBehavior Technician1245938810
  31. Therese Lizzotte, NPNurse Practitioner1780182329
  32. Paul Lizzul, MD, PHD, MPH, MBADermatology Physician1932212206
  33. Roxana Llerena-Quinn, PHDClinical Psychologist1508917709
  34. Hannah LlewellynPhysician Assistant1699455642
  35. Kara Llewellyn, MSWSocial Worker1811427107
  36. Michael Llewellyn, PA-CSurgical Physician Assistant1346688504
  37. Nichelle Llewellyn, PA-CMedical Physician Assistant1851986798
  38. Hannah Llorin, MS, CGCGenetic Counselor (M.S.)1447922984
  39. Silvia Llosa, LMHCMental Health Counselor1851460612
  40. Aliza LlovetMusic Therapist1811449663
  41. James Lloyd, M.D.Anesthesiology Physician1811335060
  42. Julia Lloyd, MPH, RD, LDN, CDCESRegistered Dietitian1790409449
  43. Kate Lloyd, MDSurgery Physician1417447764
  44. Maxwell Lloyd, MDMedical Oncology Physician1427671320
  45. Stacey LloydStudent in an Organized Health Care Education/Training Program1770418147
  46. Donald Lloyd-Jones, MDCardiovascular Disease Physician1932144078
  47. Angela LoStudent in an Organized Health Care Education/Training Program1548029754
  48. Clifford Lo, MDPediatrics Physician1689687956
  49. Janet Lo, MDEndocrinology, Diabetes & Metabolism Physician1639290083
  50. Jeffrey Lo, MDPediatric Sports Medicine Physician1730506999

The largest Massachusetts cities

  1. Worcester13,166
  2. Springfield8,553
  3. Cambridge5,145
  4. Brockton4,287
  5. Milford3,459

All of Massachusetts →

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.