NPPES file of Aug 9, 2026

Doctors and health care providers in Gaithersburg, MD

2,580 individual NPPES records list a practice address in Gaithersburg, 9th of 284 Maryland cities. The largest group is behavior technician: 580, 22% of the city's records, against 16% across Maryland. Page 34 of 52.

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

The 8 largest groups in Gaithersburg

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

Gaithersburg in Maryland

  • Rank in Maryland9th of 284 cities by records
  • Share of the state1.6% of Maryland's records
  • Specialties present25 or more taxonomy codes
  • Top three groups36.3% of all records
  • Behavior Technician rank7th of the 10 Maryland cities with the most

Compared with Maryland as a whole, Gaithersburg has 2.5× the state's share of acupuncturist records and 0.26× its share of home health aide records.

Providers in Gaithersburg, alphabetically

  1. Victor NgameniHome Health Aide1881956829
  2. Vinelle NgameniHome Health Aide1952660912
  3. Katrina NgoBehavior Technician1124878848
  4. Mary NgoDental Hygienist1124813134
  5. Tien Ngo, DDSGeneral Practice Dentistry1841421567
  6. Solange Ngomkam KamgaHome Health Aide1003421892
  7. Sylvie NgoumeleuHome Health Aide1255095287
  8. Daniel NgungohCase Manager/Care Coordinator1700127461
  9. David Nguyen, PHARMD.Pharmacist1407229420
  10. Hang Nguyen, DDSDentist1457510927
  11. Heather Nguyen, D.D.SGeneral Practice Dentistry1427254408
  12. Huy Nguyen, DMDDentist1134590490
  13. Nhat Nguyen, PHARMDPharmacist1730691726
  14. Sammy NguyenPhysical Therapist1457071128
  15. Stephen Nguyen, M.D.Internal Medicine Physician1265596050
  16. Yan Ni, PSYDClinical Psychologist1275260564
  17. Homa Niazi, O.D.Optometrist1346391893
  18. Karalynn NicholsBehavior Technician1497546519
  19. Joseph Nicol, M.A.Speech-Language Pathologist1396358917
  20. Paul Niesen, D.D.S.General Practice Dentistry1629293162
  21. Sonia NievesAddiction (Substance Use Disorder) Counselor1366674475
  22. Ashley NilesBehavior Technician1932914488
  23. Cheryl Nilsen, PTPhysical Therapist1235346735
  24. Kathleen NimtzBehavior Technician1639995319
  25. Nelson Niu, M.D.Pediatrics Physician1023052800
  26. Brenda Nivera, DDSGeneral Practice Dentistry1457421844
  27. Merline Njanjouo KemeniHome Health Aide1629337621
  28. Binta NjieBehavior Technician1154299261
  29. Paul NjockBehavior Technician1023509122
  30. Erin Nkele, LCPC, LPCProfessional Counselor1659928968
  31. Carine NkemanjongPsychiatric/Mental Health Nurse Practitioner1285218305
  32. Jay Nokkeo, DMDOral & Maxillofacial Surgery (D.M.D.)1649264466
  33. Valery NolascoBehavior Technician1487477410
  34. Haseeb NoorGeneral Practice Dentistry1639757214
  35. Imtiaz Noor, D.D.S.General Practice Dentistry1053532739
  36. Tina NorisharghBehavior Technician1689308546
  37. Maryam Norouzi, D.D.S.General Practice Dentistry1639193725
  38. Ni'Asia NorvilleBehavior Technician1164316170
  39. Kendra NorwoodBehavior Technician1184461139
  40. Jean P Noubissi, PHARM.DPharmacist1184038424
  41. Patrick Noufele SimoCase Manager/Care Coordinator1609748565
  42. Stan Nova, DDSGeneral Practice Dentistry1902272032
  43. Christine Novick, PTPediatric Physical Therapist1124597885
  44. Sandra Nunez, MS, LCPCProfessional Counselor1619131760
  45. Catherine Nunnery, DVM, DACVOVeterinarian1083912885
  46. Ismahan NurBehavior Technician1649969775
  47. Amy Nwankwo, MDFamily Medicine Physician1467981167
  48. Cecilia Nwankwo, M.DPediatric Adolescent Medicine Physician1467621623
  49. Christian Nwankwo, M.D., MPH, FAAFPFamily Medicine Physician1881765170
  50. Catherine NyongoleBehavior Technician1073362778

The largest Maryland cities

  1. Baltimore35,183
  2. Rockville14,353
  3. Bethesda7,245
  4. Columbia6,690
  5. Silver Spring6,531

All of Maryland →

How to read this directory

Gaithersburg, Maryland appears in the CMS National Plan and Provider Enumeration System with 2,580 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 Gaithersburg - 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 Gaithersburg 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 Gaithersburg is weighted toward Behavior Technician (580 clinicians, followed by Clinical Social Worker with 221 and Social Worker with 135). 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 Maryland's population, Gaithersburg reports roughly 41.7 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 Gaithersburg 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 Gaithersburg, MD?

There are 2,580 registered healthcare providers in Gaithersburg, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Gaithersburg?

The most common specialties in Gaithersburg are Behavior Technician, Clinical Social Worker, Social Worker, Pharmacist, Mental Health Counselor. Behavior Technician has the most providers with 580.

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.