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 11 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. Marianne De CastroOccupational Therapist1649713736
  2. Emmalyn De Claro, M.D.Pediatrics Physician1053435990
  3. Jose De Leon Carpio, MDInternal Medicine Physician1275682320
  4. Luciana De Mello MarinhoDental Hygienist1619756269
  5. Adriana De Palma, LCSW-CClinical Social Worker1356691422
  6. Shaquietta DeanBehavior Technician1679201891
  7. Victoria Dec, OTOccupational Therapist1962902841
  8. Brian Decker, AUDAudiologist1912698614
  9. Robert DeckerOrthodontics and Dentofacial Orthopedics Dentistry1992118251
  10. Savannah DeckerBehavior Technician1811749526
  11. Richard Jasper DeenRegistered Nurse1275356867
  12. Zainab DeenBehavior Technician1225964976
  13. Cara Dehghan, PSY.D.Clinical Psychologist1295017424
  14. Sherri Dela CruzPhysical Therapist1437981313
  15. Patricia Deleon, R.N.Registered Nurse1619306206
  16. Marie Delices, SOCIAL WORKERClinical Social Worker1487130787
  17. Samantha Dellosso, LMSWSocial Worker1740877968
  18. Myla DellupacPharmacist1497056030
  19. Arne Delos Reyes, P.T.Physical Therapist1952536500
  20. Jazmine Delos ReyesMental Health Counselor1508607383
  21. Jessica Demarco, MS, CGCGenetic Counselor (M.S.)1780394833
  22. Daniel Demarest, DOCTOR OF AUDIOLOGYAudiologist-Hearing Aid Fitter1336669084
  23. Aynn Dempsey, P.A.-C.Physician Assistant1033145057
  24. Mark Denby, LMSW MASTERSocial Worker1699511873
  25. Teresa Deneau, LCPCProfessional Counselor1831243021
  26. Sophie DengPhysical Therapist1285719815
  27. Elizabeth DenoonBehavior Technician1902792211
  28. Kavita DeorajBehavior Technician1518853829
  29. Katherine DeosaranPhysical Therapist1700618329
  30. Abir DeraiBehavior Technician1700539426
  31. Claudia Derse-AnthonyRegistered Nurse1497306971
  32. Utkarsh Desai, PHARM.DPharmacist1023417672
  33. Ann DesmondSpeech-Language Pathologist1538620513
  34. Colleen Desmond, LGPCMental Health Counselor1992241004
  35. Dinea Desouza, MDPediatrics Physician1578640470
  36. Emily DevereuxSchool Social Worker1588478168
  37. Uma Devi, M.D.Child & Adolescent Psychiatry Physician1598863268
  38. Jeanne Devine, MS, CGCGenetic Counselor (M.S.)1750379616
  39. Makiese Devose, SOCIAL WORKERSocial Worker1427880178
  40. Shankuntala Dhir, MDPsychiatry Physician1659410389
  41. Abdoul Diagne, DPTOrthopedic Physical Therapist1942440946
  42. Genevieve Diamond, LCSW-CClinical Social Worker1114399771
  43. Bintou DiaouneBehavior Technician1184543316
  44. Jairo Diaz, NCC, CRCMental Health Counselor1346857687
  45. Marvin Diaz-LemusRehabilitation Chiropractor1447116363
  46. Karen Diblasio, D.C.Chiropractor1588967251
  47. Madyson DicksBehavior Technician1740085992
  48. Michael DicksonBehavior Technician1003669136
  49. Lindsey Didion, PT, DPTPhysical Therapist1902513583
  50. Peggy Dienes, MSWClinical Social Worker1336288208

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.