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 18 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. Kayley GreenBehavior Technician1487425328
  2. Skyler GreenBehavior Technician1942196357
  3. Haley GreenbergBehavior Technician1043034689
  4. Brendan GreenePhysical Therapist1891674800
  5. Joie GreeneBehavior Technician1396543500
  6. Linda Greene, CACAD, PHDAddiction (Substance Use Disorder) Counselor1376023903
  7. Nhi-Khanh GreeneDevelopmental Therapist1386410744
  8. Shanneeka GreeneBehavior Technician1952024143
  9. Kendall Greene-Herron, LMSWSocial Worker1417743741
  10. Douglas Greenspan, DDSDentist1790797306
  11. Ronald Greger, M.D.Adult Medicine Physician1922093723
  12. Alisha GriffinBehavior Technician1558111344
  13. Emily Griffin, MA, LCPCProfessional Counselor1942741947
  14. Holly Griffin, DDSGeneral Practice Dentistry1700856564
  15. Melanie Grimmer, LMSWSocial Worker1942075577
  16. Merrill Groff, LCSW-CClinical Social Worker1578101358
  17. Gordon Groisser, D.D.S., MSDOrthodontics and Dentofacial Orthopedics Dentistry1528164613
  18. Albert Grollman, M.DSpecialist1902256688
  19. Jacqueline GrossMental Health Counselor1417742321
  20. Kelly Groves, D.C.Rehabilitation Chiropractor1831263748
  21. Annie Guan, PHARM.D.Pharmacist1922402601
  22. Jiayi GuanRegistered Dietitian1467341081
  23. Kristen Gudenzi, SLPSpeech-Language Pathologist1730561556
  24. Denine Gudnitz, LCPCProfessional Counselor1013242759
  25. Rosemary Guerrero, LMSWSocial Worker1568354264
  26. Luzmaria Guillen, DNP FNP-BC RNFamily Nurse Practitioner1386449981
  27. Yumei Gung, L.ACAcupuncturist1003241753
  28. Heather Gunn, LDNNutritionist1629413695
  29. Huimin Guo, MDAnatomic Pathology & Clinical Pathology Physician1184858516
  30. Anu Gupta, M.D.Specialist1790780963
  31. Gaytri Gupta EleraOphthalmology Physician1992169320
  32. Frances Marty GurtinaBehavior Technician1619863610
  33. Grazyna Guttenberg, PSY.DPsychologist1861567588
  34. Ilyssa Haar, RN, IBCLC, BSNLactation Consultant (Registered Nurse)1033760160
  35. Sidra HabibBehavior Technician1780353797
  36. Amy Hackman, LMSWSocial Worker1255043857
  37. Peter Hadeed, D.D.SOrthodontics and Dentofacial Orthopedics Dentistry1427123603
  38. Adele Hagen, NP-CFamily Nurse Practitioner1386993640
  39. Matty HaightProfessional Counselor1518581040
  40. Robyn Haim, LMSWClinical Social Worker1669220489
  41. Sheherazade Hakimzadeh, RBTBehavior Technician1033981352
  42. Andre Hall, MDObstetrics & Gynecology Physician1144858689
  43. Connor HallPediatric Hematology & Oncology Physician1861853772
  44. Joy Hall, RDHDental Hygienist1982040945
  45. Monique HallBehavior Technician1033803010
  46. Hannah Hallam, M.A. CCC-SLPSpeech-Language Pathologist1306724497
  47. Kimberly HallsBehavior Analyst1730835844
  48. Janet Halsey, D.D.S.General Practice Dentistry1740319185
  49. Kathryn Hamilton, PTGeriatric Physical Therapist1205641412
  50. Daniel Handel, MDHospice and Palliative Medicine (Family Medicine) Physician1811230436

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.