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 48 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. Kaiyana RomBehavior Technician1447112073
  2. Andrew Romanowsky, MDInternal Medicine Physician1578883237
  3. Eric Romanowsky, M.D.General Practice Physician1871553032
  4. Mark Romanowsky, M.D.Internal Medicine Physician1578521761
  5. Klas Romberg, MDDiagnostic Radiology Physician1437102464
  6. Jerubi Romero, RNRegistered Nurse1760181267
  7. David Rondeau, MACounselor1194284687
  8. Martha Root, PMHNPPsychiatric/Mental Health Nurse Practitioner1730339045
  9. Mony Ros, MSWClinical Social Worker1649619149
  10. Mario RosaSocial Worker1699173898
  11. Robin RosadoSocial Worker1245540657
  12. Celestina Rosario, MS, OTR/LOccupational Therapist1811451115
  13. Paula RosarioDentist1821815457
  14. Sarah Rose, MSWCounselor1477003820
  15. Haylee Rosenblatt, MDPediatrics Physician1437788783
  16. Gregory Ross, D.M.D.General Practice Dentistry1578645248
  17. Jessica RossDevelopmental Therapist1679230833
  18. Christopher Rossi, RNRegistered Nurse1821354127
  19. Jennifer Rossignol, LCSWSocial Worker1134906928
  20. Kristen Rossino, MSWCommunity Health Worker1447573910
  21. Melissa Rougier, MAMental Health Counselor1861665853
  22. Brent RourkeStudent in an Organized Health Care Education/Training Program1437636974
  23. Andrea Roush, PT, MBA, C/NDT, CEISPediatric Physical Therapist1396153052
  24. Katiuska RoweBehavior Technician1326870395
  25. Kimle Rowe, RNPediatric Registered Nurse1396581393
  26. Caitlin Rowland, OTR/LOccupational Therapist1760941009
  27. Kathleen RoySchool Counselor1457752990
  28. Marc Roy, MDEmergency Medicine Physician1548241227
  29. Raquel Ruiz, LICSWClinical Social Worker1417171448
  30. Brittany RuleyOccupational Therapist1528723038
  31. Vanya Run, CLINICAL INTERNMental Health Counselor1720977069
  32. Thomas Rupley, DCChiropractor1912193830
  33. Lynda Rushing, M.D.Anatomic Pathology & Clinical Pathology Physician1679559025
  34. Catherine RussellMental Health Counselor1740850163
  35. Kimberly Russell, MS PTPhysical Therapist1386827673
  36. Marissa RussellStudent in an Organized Health Care Education/Training Program1467051797
  37. Christine Russian, ODOptometrist1720080666
  38. Jennifer RussoInternal Medicine Physician1699032128
  39. Lisa Russo Anzalone, LMHCMental Health Counselor1346910999
  40. Deborah RyanPeer Specialist1679461594
  41. Katharine Ryan, MSW, LSW, LADCAddiction (Substance Use Disorder) Counselor1194161018
  42. Kellie RyanStudent in an Organized Health Care Education/Training Program1972665362
  43. Kelly RyanAddiction (Substance Use Disorder) Counselor1639647936
  44. Otajia SabatBehavior Technician1730905704
  45. Marguerite Sabatino, COTA/LOccupational Therapy Assistant1770054983
  46. Carla Sabbouh, MSN, APRN, FNP-CFamily Nurse Practitioner1639901119
  47. Richard Sachs, MDInternal Medicine Physician1518929512
  48. Flora Sadri-Azarbayejani, DOAddiction Medicine (Preventive Medicine) Physician1023088820
  49. Seema Sahib, MDInternal Medicine Physician1114988524
  50. Claire Saint LucienMental Health Counselor1821835026

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.