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 12 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. Alyssa Dierkes, DDSDentist1699235036
  2. Stephanie DiggsBehavior Technician1669194239
  3. Patience DikubaRegistered Nurse1124991286
  4. Jonathan Dillard, DPMPodiatrist1427579770
  5. Maricor Dillera, PTPhysical Therapist1154936847
  6. Andrea Dilorenzo, LGPCMental Health Counselor1316282775
  7. Lynne Dingle, LCSW-C, BCDClinical Social Worker1275893885
  8. David Dipaola, NBC-HWCHealth & Wellness Coach1831880418
  9. Sunny DisalvoBehavior Technician1154044766
  10. Alison Disseler, LCSW-CClinical Social Worker1972851582
  11. Adolphine DiwaMassage Therapist1104571207
  12. Stephanie Dix, RPHPharmacist1992092035
  13. Leonelle DjamenCase Manager/Care Coordinator1932801206
  14. Arezou Ariane DjavanClinical Social Worker1043930779
  15. Kevin Dolan, PT, DPTPhysical Therapist1023693009
  16. Guy-Edgard Doltaire, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1932940731
  17. Ritchel Dondoyano, PTPhysical Therapist1568706075
  18. Brent Donmoyer, PMHNPPsychiatric/Mental Health Nurse Practitioner1104352269
  19. Carolyn Donovan, M. ED., BCBABehavior Analyst1528367638
  20. Moshe DorfmanFamily Nurse Practitioner1255266086
  21. Misagh DorostOccupational Therapist1336658939
  22. Orika DortchBehavior Technician1639933716
  23. Chia May Dougherty, LCPCMental Health Counselor1831250380
  24. Kyle DouglasBehavior Technician1134949803
  25. Nevyll DouglasCommunity Health Worker1689412843
  26. Nancy Dow, M.D.Anatomic Pathology & Clinical Pathology Physician1427033059
  27. Carolyn Dowd, LCSWClinical Social Worker1700922341
  28. Kristopher Doyen, EMT-PParamedic1902566581
  29. Ashley Dozier, WHNPObstetrics & Gynecology Nurse Practitioner1760092175
  30. Derrick DrakeBehavior Technician1871231407
  31. Jolene Drblik, PSY.D.Psychologist1437944204
  32. Harley DresnerBehavior Technician1417626839
  33. Melania DriverBehavior Technician1881565869
  34. Ruofei DuPhysical Therapist1801787429
  35. Adam Dube, P.T.Physical Therapist1407073364
  36. Ariel Dubelman, M.D.Pediatrics Physician1093721458
  37. Gerry Dubin, DMDGeneral Practice Dentistry1770704488
  38. Filip Dubovsky, MDPediatric Infectious Diseases Physician1841815172
  39. Desiree Ducharme, LCPCMental Health Counselor1992364798
  40. Kallie Duda, LCSW-CClinical Social Worker1184353351
  41. James Duffy, MDInternal Medicine Physician1174695266
  42. Blair Dugan, LCPCProfessional Counselor1487330650
  43. Christopher Dunbar, RDRegistered Dietitian1053302638
  44. Kelli Dunlap, PSYDClinical Psychologist1184254559
  45. Marlene Dunsmore, LCSW-CClinical Social Worker1356480925
  46. Sirisha Durbhakula, MDPediatrics Physician1518963818
  47. Andrew Dutka, MDNeurology Physician1619043973
  48. David Dutrow, D.M.D.General Practice Dentistry1134421670
  49. Robert Duvall, DPTPhysical Therapist1811029796
  50. Cecilia Dye, LMSWSocial Worker1801506282

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.