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 72 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
- Paula ThompsonPhysical Therapist1891800611
- Tania ThorntonNurse Practitioner1952858771
- Neethu Thyparambil, P.T.Physical Therapist1811072754
- Jennifer Tibbs, LCPCProfessional Counselor1578016473
- Lucy TienPharmacist1205305042
- Carrie Timme, PTAPhysical Therapy Assistant1679302186
- Christian Tischer, MDAnesthesiology Physician1114007143
- Boris Tizenberg, MDPsychiatry Physician1790362465
- Wyatt To, MDPlastic Surgery Within the Head and Neck (Plastic Surgery) Physician1134102569
- Carol Tobias, RNOccupational Health Registered Nurse1053530139
- Michael Tolino, M.D.Pulmonary Disease Physician1932100930
- Diane Tomasky, RNHealth Educator1609536432
- Jared Tompkins, M.D.Otolaryngology Physician1891086799
- Miakayla TopovichBehavior Technician1366268401
- Ava Toppo, L.AC.Acupuncturist1033822234
- Camilo Toro, M.D.Neurology Physician1942381355
- Ernesto Torres, M.D.Pediatrics Physician1699758185
- Nicole Torres, RBTBehavior Technician1073208161
- Marion Toscano, LGPCMental Health Counselor1689198558
- Afi Toulassi, LMSWAddiction (Substance Use Disorder) Counselor1144020967
- Mballou TounkaraHome Health Aide1023882453
- Naalphatu ToureCase Manager/Care Coordinator1891470019
- Nika Toure, LMSWClinical Social Worker1396624276
- Melanie Towe, DMDPeriodontics1821222696
- Jane Towers, PH.D.Family Nurse Practitioner1235242249
- Yvonne Townsley, MPTPhysical Therapist1073511440
- Amanda Tracey, LCPCMental Health Counselor1982471611
- Heather Trageser, COTA/LOccupational Therapy Assistant1093470064
- Henry TranPharmacist1780272203
- Neena Tran, LCSW-CSocial Worker1831778653
- Dennis Travagline, CHChiropractor1093713281
- Lauren Trego, CRNPAcute Care Nurse Practitioner1467813691
- Peter Trepper, DDSDentist1003926841
- Leslie TrerotolaClinical Social Worker1689209421
- Morgan Triana, PHARMD, RPHPharmacist1841778800
- Eleni Triantis, DPTPhysical Therapist1538189949
- Sidharthi Trichy Selvaraj, MDInternal Medicine Physician1861753980
- Parashar Trivedi, MDFamily Medicine Physician1952960437
- Adam Trn, PHARMDPharmacist1952048456
- Kathryn Troupe, C.R.N.P.Nurse Practitioner1639170640
- Sarah Troxell, BCBABehavior Analyst1245164094
- Devon TroyBehavior Analyst1790150720
- Valeria TrujilloBehavior Technician1942183892
- Laura TrumpowerCritical Care Medicine Nurse Practitioner1912495938
- Kristina Trunnell, PA-CMedical Physician Assistant1831313972
- Lena Truong, PHARM.D.Pharmacist1699226555
- Shouh-Rong Tsai, PSY.D.Clinical Psychologist1053756908
- Christina Tseng, LGMFTMarriage & Family Therapist1447892229
- Caitlin TuckerSpeech-Language Pathologist1912276577
- Cecil TuckerPsychiatry Physician1619669967
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.