Doctors and health care providers in Frederick, MD
3,981 individual NPPES records list a practice address in Frederick, 6th of 284 Maryland cities. The largest group is behavior technician: 427, 11% of the city's records, against 16% across Maryland. Page 54 of 80.
The 8 largest groups in Frederick
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Frederick in Maryland
- Rank in Maryland6th of 284 cities by records
- Share of the state2.5% of Maryland's records
- Specialties present25 or more taxonomy codes
- Top three groups25.7% of all records
Compared with Maryland as a whole, Frederick has 2.3× the state's share of massage therapist records and 0.60× its share of internal medicine physician records.
Providers in Frederick, alphabetically
- Shana OshiroSpecialist1598134066
- Naomi OshunwusiBehavior Technician1144924036
- Oluwakemi Osidele, DNP, FNP-C, CRNPPsychiatric/Mental Health Nurse Practitioner1649649468
- Said Osman, MDOrthopaedic Surgery of the Spine Physician1023071206
- Antonio Ostrea, PTPhysical Therapist1881497196
- Andrea Oudshoorn, PTAPhysical Therapy Assistant1114754827
- Chloe Ouimette, DPTPhysical Therapist1295301034
- Lisa OwenPharmacist1174845879
- Beth Owens, DIPL. AC., L. AC.Acupuncturist1588960629
- Kristiyana OwensBehavior Technician1619792520
- Margaret Owens, PHDPsychologist1174184659
- Mary Owens, MSW,ACSW,LCSW-CClinical Social Worker1265530935
- Stephanie OwlfeatherAcupuncturist1285183293
- Jeanette Owusu, M.D.Endocrinology, Diabetes & Metabolism Physician1467866913
- Leah OxendineFamily Nurse Practitioner1447675756
- Radha Padhy, M.D.Obstetrics & Gynecology Physician1770997041
- Marjorie Palmer, CRNPFamily Nurse Practitioner1528741915
- Alyshia PalomoBehavior Technician1083592323
- Pratima Pandey, MDInternal Medicine Physician1760559348
- Bobby PandiarajanPharmacist1215337308
- Kaley Paniwozik, MA CCC-SLPSpeech-Language Pathologist1104426493
- Denise PankowSchool Psychologist1447075411
- Jennifer Pantoja, NPFamily Nurse Practitioner1285093047
- Ellen PapePhysical Therapist1235159153
- Zinon Pappas, M.D.Pain Medicine Physician1689645855
- Ngun Par ThangAcute Care Nurse Practitioner1467268912
- Thomas Parambil, MDInternal Medicine Physician1336342252
- Augusto Paredes Ubillus, FNP-CFamily Nurse Practitioner1285288282
- Erica ParekhSchool Psychologist1700695855
- Lea ParisAddiction (Substance Use Disorder) Counselor1114667524
- Aimee Park, M.D.Cardiovascular Disease Physician1265435978
- In Park, M.D.Child & Adolescent Psychiatry Physician1881683571
- Sarah Park, CRNP FAMILYFamily Nurse Practitioner1902252620
- Cia Parker, PSY.D.Psychologist1124276852
- Jonathan ParkerPhysician Assistant1013406966
- Ryan ParkerBehavior Technician1528999067
- Siehda Parker, LCSW-CClinical Social Worker1013504430
- Emma Parkinson, MSW, LGSW, LMSWClinical Social Worker1821776568
- Sandra Parkinson, MDFamily Medicine Physician1043282189
- Cheryl Parks, CRNAClinical Nurse Specialist1902880222
- Alissa Parmelee, PA-CPhysician Assistant1376976159
- Kayla Parmelee, MS., CCC-SLPSpeech-Language Pathologist1255991857
- Janet Parnes, M.D.Gynecology Physician1427083765
- Keri ParsonBehavior Technician1982121174
- Colleen ParsonsClinical Social Worker1164283479
- Heather ParsonsPhysical Therapy Assistant1215610118
- Jesse Parsons, DPTPhysical Therapist1770171019
- Michael Parsons, D.D.S.Endodontics1215006507
- Spencer ParsonsPhysical Therapist1922947704
- Stephanie Parsons, MSPTPhysical Therapist1528636586
The largest Maryland cities
- Baltimore35,183
- Rockville14,353
- Bethesda7,245
- Columbia6,690
- Silver Spring6,531
How to read this directory
Frederick, Maryland appears in the CMS National Plan and Provider Enumeration System with 3,981 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 Frederick - 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 Frederick 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 Frederick is weighted toward Behavior Technician (427 clinicians, followed by Clinical Social Worker with 348 and Physical Therapist with 249). 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, Frederick reports roughly 64.4 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.
Of Maryland's most common specialties, Home Health Aide is the most prominent one with no provider currently listing a Frederick practice address, a coverage gap Frederick patients typically fill by traveling to a larger nearby hub.
For Frederick 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 Frederick, MD?
There are 3,981 registered healthcare providers in Frederick, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Frederick?
The most common specialties in Frederick are Behavior Technician, Clinical Social Worker, Physical Therapist, Professional Counselor, Mental Health Counselor. Behavior Technician has the most providers with 427.
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.