2026 data CMS NPPES NUCC Taxonomy

Doctors in Rockville, MD

Compiled from official public sources by the PlainDoctor editorial team.

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

12,349
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
7,284 providers
Maryland
State
MD

12,349 healthcare providers across 20 specialties

Rockville, Maryland appears in the CMS National Plan and Provider Enumeration System with 12,349 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 Rockville - 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 Rockville 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 Rockville is weighted toward Behavior Technician (7,284 clinicians, followed by Clinical Social Worker with 384 and Speech-Language Pathologist with 267). 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, Rockville reports roughly 199.8 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, Rockville ranks #2 of 280 cities tracked by provider count, accounting for 8.1% 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 Rockville practice address, a coverage gap Rockville patients typically fill by traveling to a larger nearby hub.

For Rockville 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.

12,349
Providers
20
Specialties
#2
of 280 MD cities
8.1%
of MD providers
199.8
Per 100K (state)

Which specialties are most common in Rockville

Behavior Technician 7,284
Clinical Social Worker 384
Speech-Language Pathologist 267
Physical Therapist 265
Social Worker 211
Pharmacist 205
Internal Medicine Physician 186
Occupational Therapist 173
Mental Health Counselor 153
Family Nurse Practitioner 138
Professional Counselor 135
General Practice Dentistry 115
Acupuncturist 112
Physician Assistant 99
Pediatrics Physician 96
Behavior Analyst 93
Clinical Psychologist 89
Anesthesiology Physician 85
Psychologist 81
Family Medicine Physician 80

Healthcare Providers (Page 205)

Name
Saima Siddiqui, MD
Emergency Medicine Physician
Sarwat Siddiqui, M.D.
Anatomic Pathology & Clinical Pathology Physician
Shayan Siddiqui
Internal Medicine Physician
Kirsten Sidell, LCMFT
Marriage & Family Therapist
Angad Sidhu
Behavior Technician
Rokhyatou Sidibe
Behavior Technician
Amy Sidney, RPH
Pharmacist
Dayna Siegel, LMSW
Clinical Social Worker
Evan Siegel, M.D.
Rheumatology Physician
Lynne Siegel
Speech-Language Pathologist
Marjory Siegel
Speech-Language Pathologist
Michael Siegel, M.D.
Otolaryngology Physician
Shannon Siegel
Behavior Technician
Victor Siegel, D.D.S.
General Practice Dentistry
Emerique Gildas Siemadji
Behavior Technician
David Siemien
Physical Therapy Assistant
Nestor Sierra Di Censo
Behavior Technician
Symplice Siewe Djine
Behavior Technician
Moses Sifoi
Behavior Technician
Paul Sigafus, M.S., LGMFT
Marriage & Family Therapist
Suzan Sigmond, LCSWC-C
Clinical Social Worker
Edward Siguel, MD
Clinical Pathology/Laboratory Medicine Physician
Sophia Silawan
Behavior Technician
Mira Silberg, LCSW-C
Clinical Social Worker
Haniya Silberman
Clinical Social Worker
Grace Silbo
Behavior Technician
Monde Sililo
Behavior Technician
Sonia Silinsky Krupnikova, MD
Rheumatology Physician
Issa Sillah
Behavior Technician
Umaru Sillah
Behavior Technician
Berit Silva, CRNP
Specialist
Deborah Silva
Behavior Technician
Delmis Silva
Behavior Technician
Gabriel Silva
Behavior Technician
Isabela Silva
Behavior Technician
Mechele Silva, MD
Obstetrics & Gynecology Physician
Michelle Silva
Behavior Technician
Teajan Silva
Behavior Technician
Sofia Silva De Araujo
Behavior Technician
Debora Silva Santos
Registered Nurse
Larry Silver, M.D.
Child & Adolescent Psychiatry Physician
Lucy Silver
Behavior Technician
Cheryl Silverbrook, MD
Obstetrics & Gynecology Physician
Kristin Silverman
Behavior Technician
Rebecca Silverman, PCD(DONA)
Doula
William Silverman, MD
Internal Medicine Physician
Danielle Silverstone
Occupational Therapy Assistant
Komala Silverstone, REGISTERED PHARMACIS
Pharmacist
Cecile Silvestre, MD
Emergency Medicine Physician
Hua-Chuan Sim, M.D.
Family Medicine Physician

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 Rockville, MD?
There are 12,349 registered healthcare providers in Rockville, MD, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Rockville?
The most common specialties in Rockville are Behavior Technician, Clinical Social Worker, Speech-Language Pathologist, Physical Therapist, Social Worker. Behavior Technician has the most providers with 7,284.

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 PlainDoctor editorial team.