NPPES file of Aug 9, 2026

Doctors and health care providers in Waltham, MA

2,111 individual NPPES records list a practice address in Waltham, 19th of 406 Massachusetts cities. The largest group is clinical social worker: 234, 11% of the city's records, against 8% across Massachusetts. Page 19 of 43.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Waltham

  1. Clinical Social Worker234
  2. Physical Therapist173
  3. Behavior Technician166
  4. Mental Health Counselor147
  5. Speech-Language Pathologist120
  6. Social Worker82
  7. Pharmacist78
  8. Occupational Therapist70

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Waltham in Massachusetts

  • Rank in Massachusetts19th of 406 cities by records
  • Share of the state1% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.1% of all records

Compared with Massachusetts as a whole, Waltham has 9.1× the state's share of gerontology nurse practitioner records and 0.32× its share of student in an organized health care education/training program records.

Providers in Waltham, alphabetically

  1. Alexis IwuchukwuStudent in an Organized Health Care Education/Training Program1134781693
  2. Reem Jabr, MA RD LDNRegistered Dietitian1235341108
  3. Rebecca JacksonCounselor1598917023
  4. Richard Jacobs, M.D.Diagnostic Radiology Physician1790800639
  5. Emma JacobsonRegistered Dietitian1760214167
  6. Stefan Jadaszewski, PHDCounseling Psychologist1922672856
  7. Brian Jadro, M.A., BCBABehavior Analyst1427488683
  8. Robert Jameson, ODStudent in an Organized Health Care Education/Training Program1770200917
  9. Victoria Janes, RD, LDNMetabolic Nutrition Registered Dietitian1760750814
  10. Najee JaneyBehavior Technician1871141176
  11. Lara Janitens, PTPhysical Therapist1649743246
  12. Kathryn Janiuk, LCSWSocial Worker1669348231
  13. Patricia JardinPhysical Therapist1609478122
  14. Devonna JarrettSocial Worker1376062232
  15. Andrew Jawa, MDOrthopaedic Hand Surgery Physician1568671188
  16. Kathleen JefferyClinical Social Worker1427469451
  17. Chengliang JiangAcupuncturist1053182303
  18. Deirdre JimenezClinical Social Worker1134554025
  19. E Elon Joffre, DMDOrthodontics and Dentofacial Orthopedics Dentistry1154566495
  20. Rachel JohannsenOccupational Therapist1487361069
  21. Lynette Johns, O.D.Corneal and Contact Management Optometrist1053407411
  22. Techa JohnsenBehavior Technician1962980573
  23. Janeil JohnsonBehavior Technician1790329050
  24. Marc JohnsonBehavior Technician1720546682
  25. Sarah JohnsonNeurorehabilitation Occupational Therapist1659744522
  26. Susan Johnson, MS LICSW BCDClinical Social Worker1952379331
  27. Jennifer Johnston, CCC-SLPSpeech-Language Pathologist1760455273
  28. Sarah JohnstonBehavior Technician1467210021
  29. Suzanne Johnston, M.D.Ophthalmology Physician1689796682
  30. Amanda JonesHealth Educator1992302137
  31. Danielle JonesBehavior Technician1053891085
  32. Frances Jones, EDUCATORDevelopmental Therapist1538342910
  33. Jacqueline JonesCounselor1851808729
  34. Rebecca Jones, LICSWClinical Social Worker1124579982
  35. Lea JorekjianRegistered Nurse1255253969
  36. Minolda Joseph, MSWClinical Social Worker1225396914
  37. Atarah Joshua, PTNeurology Physical Therapist1215492780
  38. Noldy Jovin, RNAdult Psychiatric/Mental Health Registered Nurse1770224685
  39. Kathleen Joyce, MDDermatology Physician1689652257
  40. Paige JulichSpeech-Language Pathologist1275305518
  41. Karen Kaczynski, PHDClinical Child & Adolescent Psychologist1700036738
  42. Loraine Kagan, CCC-SLPSpeech-Language Pathologist1538660055
  43. Suzanne KajunskiMental Health Counselor1831043645
  44. Megan KaloukianPhysical Therapist1518827575
  45. Angella KamikaziLicensed Practical Nurse1871313148
  46. Christina Kammel, D,P,T,Physical Therapist1992932198
  47. Betsy Kammerer, PHDPsychologist1265405732
  48. Beatrice Kamya, RNPFamily Nurse Practitioner1124683545
  49. Karla Kanis, M.D.Neurology Physician1629166558
  50. Steven Kanner, MDInternal Medicine Physician1740270289

The largest Massachusetts cities

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Cambridge5,145
  5. Brockton4,287

All of Massachusetts →

How to read this directory

Waltham, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 2,111 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 Waltham - 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 Waltham 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 Waltham is weighted toward Clinical Social Worker (234 clinicians, followed by Physical Therapist with 173 and Behavior Technician with 166). 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, Waltham reports roughly 30.2 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.

For Waltham 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 Waltham, MA?

There are 2,111 registered healthcare providers in Waltham, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Waltham?

The most common specialties in Waltham are Clinical Social Worker, Physical Therapist, Behavior Technician, Mental Health Counselor, Speech-Language Pathologist. Clinical Social Worker has the most providers with 234.

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.