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 24 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. Talia LoudaCounselor1699406603
  2. Anne Louis, RNPediatric Registered Nurse1699659961
  3. Yolande Louis, RNGeneral Practice Registered Nurse1356589717
  4. Timothy Loveday, B.A.Counselor1407906118
  5. Allison Lovely, FNP-CFamily Nurse Practitioner1245120351
  6. Robin Lovett, C.O., C.PEDOrthotist1922270677
  7. Lee Ann Lowe, LICSWClinical Social Worker1588132682
  8. Lisa Lowe, PTPhysical Therapist1639500937
  9. Garrett LowtherBehavior Technician1982166427
  10. Cicy LuDevelopmental Therapist1205693009
  11. Yang Lu, LIC. AC.Acupuncturist1265509996
  12. Danielle Lubin, LCSWClinical Social Worker1770153405
  13. Chelsea LucaroniOccupational Therapist1295318426
  14. Nicholas LucchesiClinical Social Worker1952269367
  15. Tamara Luck, RD, LDNRegistered Dietitian1679044291
  16. Cyntia Lugo, MSW, LICSWClinical Social Worker1275754277
  17. Kirsten Lui, DMDGeneral Practice Dentistry1811259898
  18. Ismail Lukwago, LPNLicensed Practical Nurse1558904854
  19. Nina Lunn, RNReproductive Endocrinology/Infertility Registered Nurse1174453021
  20. Xiangquan LuoMental Health Counselor1659106367
  21. Ana Lutenberg, LICSWClinical Social Worker1467853887
  22. Mary Paula Lutz, M.D.Hematology (Internal Medicine) Physician1114018850
  23. Sarah LuyigaMental Health Counselor1407772445
  24. Julius LwomwaLicensed Practical Nurse1851650774
  25. Brianne Lydon, LICSWClinical Social Worker1770068314
  26. Carolyn Lynes, LICSWClinical Social Worker1780767038
  27. Crystal Lyons, JDSocial Worker1649752833
  28. Jacqueline Lyttle, REGISTERED NURSERegistered Nurse1821359951
  29. Kenneth Macafee, DMDOral and Maxillofacial Surgery (Dentist)1093885691
  30. Stewart MacarthurPhysical Therapist1114696986
  31. Courtney MacdonaldOccupational Therapist1215673306
  32. Megan Macdonald, MS, OTR/LPediatric Occupational Therapist1629532247
  33. Danielle Macfarlane, PTPhysical Therapist1659614147
  34. Sophia Macheras, LCSWMental Health Counselor1558477331
  35. Maria Macias Martinez, DL101651Dentist1518884709
  36. Elizabeth Mackay, M. ED., ED. S.School Psychologist1932462116
  37. Maryelisabeth MackayBehavior Technician1942854476
  38. Janice Mackinnon, PT, DPTPhysical Therapist1316369598
  39. Bethany MacleodOccupational Therapist1457477648
  40. Leonard Macrina, PTSports Physical Therapist1962432690
  41. Christopher Maguire, DMDGeneral Practice Dentistry1821119736
  42. Judith Maguire, BASocial Worker1366717753
  43. Charles MahdyPsychiatric/Mental Health Nurse Practitioner1750978755
  44. Debra Maibor, MS CCC-SLPSpeech-Language Pathologist1255563318
  45. Rachel MallardBehavior Analyst1851862528
  46. Juan Mallari, MDAnesthesiology Physician1508834854
  47. Henry MallettSocial Worker1861259699
  48. Bernard Maloney, DMDEndodontics1730101650
  49. Joseph Maloney, M.D.General Practice Physician1801835806
  50. Kathleen Maloney, APRN, BCSchool Nurse Practitioner1922213792

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.