NPPES file of Aug 9, 2026

Doctors and health care providers in Lowell, MA

2,992 individual NPPES records list a practice address in Lowell, 10th of 406 Massachusetts cities. The largest group is mental health counselor: 374, 13% of the city's records, against 8% across Massachusetts. Page 40 of 60.

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

The 8 largest groups in Lowell

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

Lowell in Massachusetts

  • Rank in Massachusetts10th of 406 cities by records
  • Share of the state1.4% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.5% of all records

Compared with Massachusetts as a whole, Lowell has 9.1× the state's share of peer specialist records and 0.61× its share of physician assistant records.

Providers in Lowell, alphabetically

  1. Hiep Nguyen, M.D.General Practice Physician1699851139
  2. Kenneth Nguyen, PHARMDPharmacist1629673660
  3. Loane Nguyen, DMDGeneral Practice Dentistry1245397827
  4. Quynh NguyenMental Health Counselor1851181911
  5. Thu NguyenPharmacist1053038497
  6. Vennis Nhem, MAMental Health Counselor1164049557
  7. Irina NiavaRegistered Nurse1275170813
  8. Donald Nicholas, BAAddiction (Substance Use Disorder) Counselor1194847277
  9. Amy Nichols, LICSWClinical Social Worker1871765560
  10. Shauna Nichols, M.S., CAGSMental Health Counselor1679951222
  11. Adam NicholsonMental Health Counselor1215688742
  12. Nicole Nickerson, MSW, LCSWSocial Worker1316087810
  13. Melissa NigroStudent in an Organized Health Care Education/Training Program1538393913
  14. Patricia Nilles, MDObstetrics & Gynecology Physician1669531315
  15. Kanfee NimelyMental Health Counselor1962195719
  16. Meaghan Nitka, MDInternal Medicine Physician1952551376
  17. Ruth NjengaLicensed Practical Nurse1801778824
  18. Eileen Njeri, LCSWMental Health Counselor1609546332
  19. Gad Njoroge, LPNDriver1235582859
  20. Nicholas Njoroge, NPPsychiatric/Mental Health Nurse Practitioner1295251684
  21. Lucy NjugunaRegistered Nurse1417621244
  22. James NjungeLicensed Practical Nurse1205297553
  23. Anye NkimbengCommunity Health Worker1366221277
  24. Linda NobleStudent in an Organized Health Care Education/Training Program1811450539
  25. Emily Noel, MSWClinical Social Worker1295262368
  26. Hector NogalesCounselor1265487169
  27. Kristin NoglerPeer Specialist1023883410
  28. Nayda NogueDevelopmental Therapist1922385053
  29. Victoria NogueiraBehavior Technician1205654779
  30. Taylor NojeimMental Health Counselor1154011740
  31. Nicole Nolan, PHARMDPharmacist1235791831
  32. Michelle Noonan, DPTPhysical Therapist1548259005
  33. Darren Nordin, LICSWClinical Social Worker1558465187
  34. Christina NormanBehavior Analyst1053763656
  35. Angellina NouSocial Worker1548054455
  36. Andrew Nowalk, CRNACertified Registered Nurse Anesthetist1154133163
  37. Mariam NsimbiGeneral Practice Physician1639024904
  38. Simon NsubugaLicensed Practical Nurse1730060666
  39. Kristin Nuckols, OTR/LNeurorehabilitation Occupational Therapist1003148594
  40. Gabriela NunesCounselor1205466901
  41. Hannah NutterAddiction (Substance Use Disorder) Counselor1518748557
  42. Margaret Nyoro, N/AStudent in an Organized Health Care Education/Training Program1639455579
  43. Austin O'Brien, MDFamily Medicine Physician1104808138
  44. Emily O'Brien, LICSWClinical Social Worker1114585312
  45. Kalyn O'BrienMental Health Counselor1255859245
  46. Julie O'Connor, M.D.Family Medicine Physician1528389863
  47. Margaret O'Connor, LICSWClinical Social Worker1679876148
  48. Sharon O'DonnellSocial Worker1992119036
  49. Kristina O'HalloranPeer Specialist1538048400
  50. Maureen O'Kane-Smalley, NPFamily Nurse Practitioner1386815546

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

Lowell, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 2,992 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 Lowell - 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 Lowell 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 Lowell is weighted toward Mental Health Counselor (374 clinicians, followed by Clinical Social Worker with 248 and Counselor with 230). 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, Lowell reports roughly 42.7 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 Lowell 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 Lowell, MA?

There are 2,992 registered healthcare providers in Lowell, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lowell?

The most common specialties in Lowell are Mental Health Counselor, Clinical Social Worker, Counselor, Behavior Technician, Social Worker. Mental Health Counselor has the most providers with 374.

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.