2026 data CMS NPPES NUCC Taxonomy

Doctors in Frederick, MD

Active healthcare providers in Frederick sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

3,850
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
368 providers
Maryland
State
MD

3,850 healthcare providers across 20 specialties

Frederick, Maryland appears in the CMS National Plan and Provider Enumeration System with 3,850 registered healthcare providers spanning 20 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 2023 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 (368 clinicians, followed by Clinical Social Worker with 319 and Physical Therapist with 238). 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 62.3 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.

Within Maryland, Frederick ranks #6 of 280 cities tracked by provider count, accounting for 2.5% of the state's registered providers. Of Maryland's most common specialties, Student in an Organized Health Care Education/Training Program 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, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

3,850
Providers
20
Specialties
#6
of 280 MD cities
2.5%
of MD providers
62.3
Per 100K (state)

Which specialties are most common in Frederick

Behavior Technician 368
Clinical Social Worker 319
Physical Therapist 238
Mental Health Counselor 183
Professional Counselor 176
Social Worker 147
Family Nurse Practitioner 139
Pharmacist 136
Speech-Language Pathologist 133
Occupational Therapist 104
Physician Assistant 95
Internal Medicine Physician 75
Family Medicine Physician 63
General Practice Dentistry 61
Psychiatric/Mental Health Nurse Practitioner 58
Registered Nurse 50
Dentist 49
Physical Therapy Assistant 46
Behavior Analyst 45
Pediatrics Physician 43

Healthcare Providers (Page 69)

Name
Renju Thackenkary, BDS,DDS
General Practice Dentistry
Sunil Thadani, MD
Cornea and External Diseases Specialist Physician
Grace Thammasuvimol, M.D.
Child & Adolescent Psychiatry Physician
Casandra Theriault, LGSW
Social Worker
Michael Tholen, M.D.
Surgery Physician
Derek Thomas
Behavior Analyst
Elijah Thomas
Behavior Technician
Hallie Thomas, PA-C
Surgical Physician Assistant
Joseph Thomas, PHARMD
Pharmacist
Malyn Thomas
Clinical Social Worker
Margareta Thomas, MSW, LCSW-C
Clinical Social Worker
Petra Thomas, M.D.
Pulmonary Disease Physician
Rosemary Thomas, L.C.P.C.
Professional Counselor
Selena Thomas, MD
Student in an Organized Health Care Education/Training Program
Tina Thomas, CRNP
Pediatric Nurse Practitioner
Renee Thomas-Spencer, MD
Obstetrics & Gynecology Physician
David Thomassen, MS, LGPC
Mental Health Counselor
Aaron Thompson
Behavior Technician
Alexa Thompson, DC
Chiropractor
Debra Thompson, LCSW-C
Clinical Social Worker
Erin Thompson, PT, DPT
Physical Therapist
Hannah Thompson
Behavior Technician
Kassie Thompson
Behavior Technician
Katherine Thompson
Social Worker
Maggie Thompson
Speech-Language Pathologist
Matthew Thompson
Physical Therapist
Meghan Thompson, M.S., S.S.P.
School Psychologist
Patrick Thompson, LAC
Acupuncturist
Paula Thompson
Physical Therapist
Tania Thornton
Nurse Practitioner
Neethu Thyparambil, P.T.
Physical Therapist
Jennifer Tibbs, LCPC
Mental Health Counselor
Lucy Tien
Pharmacist
Carrie Timme, PTA
Physical Therapy Assistant
Christian Tischer, MD
Anesthesiology Physician
Mikayla Tissue
Behavior Technician
Wyatt To, MD
Plastic Surgery Within the Head and Neck (Plastic Surgery) Physician
Carol Tobias, RN
Occupational Health Registered Nurse
Michael Tolino, M.D.
Pulmonary Disease Physician
Diane Tomasky, RN
Health Educator
Ayana Tompkins, LCSW-C
Mental Health Counselor
Jared Tompkins, M.D.
Otolaryngology Physician
Miakayla Topovich
Behavior Technician
Ava Toppo, L.AC.
Acupuncturist
Camilo Toro, M.D.
Neurology Physician
Ernesto Torres, M.D.
Pediatrics Physician
Nicole Torres, RBT
Behavior Technician
Marion Toscano, LGPC
Pastoral Counselor
Afi Toulassi, LMSW
Addiction (Substance Use Disorder) Counselor
Mballou Tounkara
Personal Care Attendant

Nearby Cities in Maryland

Other Maryland cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Frederick, MD?
There are 3,850 registered healthcare providers in Frederick, MD, covering 20 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, Mental Health Counselor, Professional Counselor. Behavior Technician has the most providers with 368.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.