Doctors and health care providers in Timonium, MD
612 individual NPPES records list a practice address in Timonium, 45th of 284 Maryland cities. The largest group is physical therapist: 80, 13% of the city's records, against 4% across Maryland. Page 13 of 13.
The 8 largest groups in Timonium
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Timonium in Maryland
- Rank in Maryland45th of 284 cities by records
- Share of the state0.4% of Maryland's records
- Specialties present25 or more taxonomy codes
- Top three groups27.3% of all records
Compared with Maryland as a whole, Timonium has 3.4× the state's share of physical therapist records and 0.20× its share of behavior technician records.
Providers in Timonium, alphabetically
- Zhe Yang, LCPCMental Health Counselor1316667033
- Jean Yawn, LCSW-CClinical Social Worker1457193880
- Anna Yermolayeva, DMDOrthodontics and Dentofacial Orthopedics Dentistry1538844238
- Albion Yesilonis, MPTPhysical Therapist1396751152
- Robert Yin, M.D.Gastroenterology Physician1750483863
- Valerie Youngblood, LCSW-CClinical Social Worker1710447263
- Debra Zakarin, LCSW-CClinical Social Worker1235334731
- Sergio Zarbin, DMDGeneral Practice Dentistry1750441275
- Krista Zerby, LCMFTMarriage & Family Therapist1720636590
- Karl Zeren, D.D.S.Periodontics1265579379
- Haregot ZeromPsychiatric/Mental Health Nurse Practitioner1578483699
- Kathy Zinnert, RNCase Management Registered Nurse1750680351
The largest Maryland cities
- Baltimore35,183
- Rockville14,353
- Bethesda7,245
- Columbia6,690
- Silver Spring6,531
How to read this directory
Timonium, Maryland appears in the CMS National Plan and Provider Enumeration System with 612 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 Timonium - 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 Timonium 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 Timonium is weighted toward Physical Therapist (80 clinicians, followed by Clinical Social Worker with 53 and Professional Counselor with 34). 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, Timonium reports roughly 9.9 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 Timonium practice address, a coverage gap Timonium patients typically fill by traveling to a larger nearby hub.
For Timonium 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 Timonium, MD?
There are 612 registered healthcare providers in Timonium, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Timonium?
The most common specialties in Timonium are Physical Therapist, Clinical Social Worker, Professional Counselor, Mental Health Counselor, General Practice Dentistry. Physical Therapist has the most providers with 80.
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.