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 115 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. Katia Canenguez, PH.D.,ED.M.Psychologist1700111358
  2. Jennifer Canesi, NURSE PRACTITIONERNurse Practitioner1154638138
  3. John Canesi, DMDGeneral Practice Dentistry1578767570
  4. Abrah Canfield, AGACNPAcute Care Nurse Practitioner1316776032
  5. Bridget Cange, PHARMDPharmacist1396480869
  6. Paul Cangiano, O.D.Optometrist1538238787
  7. Lauren CanhaStudent in an Organized Health Care Education/Training Program1912847815
  8. Louisa Canham, MDEmergency Medicine Physician1518288166
  9. Katherine Canina, CRNACertified Registered Nurse Anesthetist1851681209
  10. Stalin Canizares, MDStudent in an Organized Health Care Education/Training Program1366243552
  11. Ariana Cannavo, DOEndocrinology, Diabetes & Metabolism Physician1043605058
  12. Joseph Cannella, MDAnesthesiology Physician1154025732
  13. Sara CannellaCase Manager/Care Coordinator1629804646
  14. Christine Canning, PA C MHPPhysician Assistant1265484505
  15. Michelle Canning, RNInfection Control Registered Nurse1760600225
  16. Stephanie CannistraBehavior Technician1912865023
  17. Stephen Cannistra, M.D.Medical Oncology Physician1174552780
  18. Christine Cannon, LICSWClinical Social Worker1750602785
  19. Christopher Cannon, MDCardiovascular Disease Physician1548227960
  20. Jeffrey Cannon, MDAnesthesiology Physician1851851158
  21. Julia CannonClinical Social Worker1407405848
  22. Lily Cannon, LCSWSocial Worker1639020449
  23. Marie Elizabeth Cannon, M.D.Forensic Pathology Physician1063467488
  24. Rachel Cannon, MDObstetrics & Gynecology Physician1407198617
  25. Christopher Cano, MDNeurology Physician1184086654
  26. Haidee Cano, MSW, LCSWClinical Social Worker1750917142
  27. Christhian Cano Guerra, MDStudent in an Organized Health Care Education/Training Program1477131159
  28. Jacinto Cano Peyro, D.D.S.General Practice Dentistry1447655444
  29. Debbie Canoa, DPTPhysical Therapist1679568950
  30. Tanguy Canonge, DDSStudent in an Organized Health Care Education/Training Program1144604810
  31. Darren CanonicoClinical Social Worker1538018676
  32. Alev CanseverClinical Social Worker1255178828
  33. Naheed Cantalupo, RDNRegistered Dietitian1265390009
  34. Alexee CantaveStudent in an Organized Health Care Education/Training Program1104776434
  35. Marie Cantave-Ayer, NPFamily Nurse Practitioner1124354691
  36. Mary Cantella, N.P.Adult Health Nurse Practitioner1225164205
  37. Nancy Cantelmo, MDVascular Surgery Physician1922097260
  38. Luce Cantin, M.D., FRCPCDiagnostic Radiology Physician1760624589
  39. Alan Cantor, MD, PHDPediatric Hematology & Oncology Physician1164481511
  40. Harvey Cantor, M.D.Immunopathology Physician1760513857
  41. Mamie Cantor, PA-CPhysician Assistant1548634363
  42. Adriana Cantos, MDPsychiatry Physician1649911843
  43. Kathryn Cantrell, CCLSMental Health Counselor1902335664
  44. Karina Cantumenjivar, DDS,MSStudent in an Organized Health Care Education/Training Program1669219721
  45. Colin Cantwell, MB.BCHDiagnostic Radiology Physician1578699948
  46. Katherine Canty, MDPediatrics Physician1548707250
  47. Melinda Canty, BCBABehavior Analyst1831934918
  48. Stephanie Canty, CNPAdult Health Nurse Practitioner1255042388
  49. Carolin Cao, PHARMD, RPHPharmacist1124622287
  50. Cynthia CaoPharmacy Technician1972698751

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.