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 30 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. Samantha MartinBehavior Technician1669276887
  2. Ana MartinezBehavior Technician1679310619
  3. Madelyn MartinezBehavior Technician1417657370
  4. William Martone, M.D.Infectious Disease Physician1144537960
  5. Teresa Martucci, LCSW-CClinical Social Worker1164175428
  6. Nicole MartynSocial Worker1912328899
  7. Poonam Maru, DO, FACPInternal Medicine Physician1780974329
  8. Jordan MarvilleBehavior Technician1376422352
  9. Phillip MascendaroBehavior Technician1881211126
  10. Niesha MasseyBehavior Technician1952113011
  11. Mariah Massie, FNPFamily Nurse Practitioner1083309017
  12. Gabriela MataBehavior Technician1083361265
  13. Maria Matas-Chamberlain, MS RN CDCESDiabetes Educator Registered Nurse1750266151
  14. Jennifer Matelis, D.D.S.General Practice Dentistry1760485031
  15. Joanne MateoBehavior Technician1548849698
  16. Patricia MateyLicensed Practical Nurse1396592549
  17. Audrey Mathew, NPNurse Practitioner1386241685
  18. Rebecca Mathien, MS,RDRegistered Dietitian1629703491
  19. Alicia MatthewsBehavior Technician1861358293
  20. Emma Mattingly, LGPCCounseling Psychologist1093581555
  21. Christine Mauck, M.D.Public Health & General Preventive Medicine Physician1235410259
  22. Diana Mayer, LGMFTMarriage & Family Therapist1639439524
  23. Juliana Mayhew, LMSWClinical Social Worker1548951262
  24. Mackenzie MaynardBehavior Technician1821794769
  25. Frank Mayo, MDPulmonary Disease Physician1811991144
  26. Jaylynn Mayo, LMSWSocial Worker1326827189
  27. Marie-Theres Mbakop K E TsafacHome Health Aide1326608464
  28. Melodie MbebiFamily Nurse Practitioner1891501078
  29. Valerie Mbonwo Azafack, PHARMDPharmacist1851005177
  30. Othea McAlpine, LCPCMental Health Counselor1518206952
  31. Brenna McAskillBehavior Technician1801477336
  32. Sherry McAtee, CRNP-PMHPsychiatric/Mental Health Nurse Practitioner1437579752
  33. Arthur McAuliffe, DCChiropractor1962534222
  34. Elijah McBrideBehavior Technician1649991472
  35. Thomas McCabe, DPTPediatric Physical Therapist1043814429
  36. John McCarthy, CRNPFamily Nurse Practitioner1952814634
  37. Cameron McCaskillBehavior Technician1902566284
  38. Jonathan McCauley, MDEmergency Medicine Physician1659391803
  39. Joseph McClain, M.D.Internal Medicine Physician1194968297
  40. Sabrina McClintock, D.O.Pediatrics Physician1417362187
  41. Karla McClure, LCSW-CClinical Social Worker1700505799
  42. Kathryn McCoy, CRNPPediatric Nurse Practitioner1366609059
  43. Maria McCoyBehavior Technician1992578306
  44. Melanie McCoy, PHD, LICSW, LCSWCClinical Social Worker1457658882
  45. Heidi McCuskerBehavior Technician1730051822
  46. Nichole McDonnellBehavior Technician1629872841
  47. Thomas McDonough, LCSW-CClinical Social Worker1750611471
  48. Francis McGill, RNRegistered Nurse1710779947
  49. Melissa McGowan, RPHPharmacist1750623567
  50. Katherine McGrady, ED.D, NCC, LCPCCounselor1023546470

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.