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.
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
- Victor NgameniHome Health Aide1881956829
- Vinelle NgameniHome Health Aide1952660912
- Katrina NgoBehavior Technician1124878848
- Mary NgoDental Hygienist1124813134
- Tien Ngo, DDSGeneral Practice Dentistry1841421567
- Solange Ngomkam KamgaHome Health Aide1003421892
- Sylvie NgoumeleuHome Health Aide1255095287
- Daniel NgungohCase Manager/Care Coordinator1700127461
- David Nguyen, PHARMD.Pharmacist1407229420
- Hang Nguyen, DDSDentist1457510927
- Heather Nguyen, D.D.SGeneral Practice Dentistry1427254408
- Huy Nguyen, DMDDentist1134590490
- Nhat Nguyen, PHARMDPharmacist1730691726
- Sammy NguyenPhysical Therapist1457071128
- Stephen Nguyen, M.D.Internal Medicine Physician1265596050
- Yan Ni, PSYDClinical Psychologist1275260564
- Homa Niazi, O.D.Optometrist1346391893
- Karalynn NicholsBehavior Technician1497546519
- Joseph Nicol, M.A.Speech-Language Pathologist1396358917
- Paul Niesen, D.D.S.General Practice Dentistry1629293162
- Sonia NievesAddiction (Substance Use Disorder) Counselor1366674475
- Ashley NilesBehavior Technician1932914488
- Cheryl Nilsen, PTPhysical Therapist1235346735
- Kathleen NimtzBehavior Technician1639995319
- Nelson Niu, M.D.Pediatrics Physician1023052800
- Brenda Nivera, DDSGeneral Practice Dentistry1457421844
- Merline Njanjouo KemeniHome Health Aide1629337621
- Binta NjieBehavior Technician1154299261
- Paul NjockBehavior Technician1023509122
- Erin Nkele, LCPC, LPCProfessional Counselor1659928968
- Carine NkemanjongPsychiatric/Mental Health Nurse Practitioner1285218305
- Jay Nokkeo, DMDOral & Maxillofacial Surgery (D.M.D.)1649264466
- Valery NolascoBehavior Technician1487477410
- Haseeb NoorGeneral Practice Dentistry1639757214
- Imtiaz Noor, D.D.S.General Practice Dentistry1053532739
- Tina NorisharghBehavior Technician1689308546
- Maryam Norouzi, D.D.S.General Practice Dentistry1639193725
- Ni'Asia NorvilleBehavior Technician1164316170
- Kendra NorwoodBehavior Technician1184461139
- Jean P Noubissi, PHARM.DPharmacist1184038424
- Patrick Noufele SimoCase Manager/Care Coordinator1609748565
- Stan Nova, DDSGeneral Practice Dentistry1902272032
- Christine Novick, PTPediatric Physical Therapist1124597885
- Sandra Nunez, MS, LCPCProfessional Counselor1619131760
- Catherine Nunnery, DVM, DACVOVeterinarian1083912885
- Ismahan NurBehavior Technician1649969775
- Amy Nwankwo, MDFamily Medicine Physician1467981167
- Cecilia Nwankwo, M.DPediatric Adolescent Medicine Physician1467621623
- Christian Nwankwo, M.D., MPH, FAAFPFamily Medicine Physician1881765170
- Catherine NyongoleBehavior Technician1073362778
The largest Maryland cities
- Baltimore35,183
- Rockville14,353
- Bethesda7,245
- Columbia6,690
- Silver Spring6,531
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.