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 168)

Name
Christiana Onuoha
Behavior Technician
Esther Onwuka
Behavior Technician
Ijeoma Onwuka
Behavior Technician
Chimaobi Onwuzuruoha
Behavior Technician
Cynthia Onyango
Behavior Technician
Maureen Onyebadi
Behavior Technician
Chimeziri Onyeike
Behavior Technician
Friday Onyekuru
Behavior Technician
Chioma Onyekwelibe
Behavior Technician
Azima Oomatia
Physical Therapist
Daisy Opiyo
Behavior Technician
Oyinlola Oppong
Behavior Technician
Francis Oppong-Agyemang
Behavior Technician
Judith Oppong-Agyemang
Behavior Technician
Frederica Opuni
Behavior Technician
Rodney Orders, MSW
Clinical Social Worker
Daeshona Ore
Behavior Technician
Charlotte Oreagan
Behavior Technician
Elmer Orellana
Behavior Technician
Greisy Orellana
Behavior Technician
Jammy Orellana
Behavior Technician
Karen Orellana, FNP-BC
Family Nurse Practitioner
Stephanie Orellana
Behavior Technician
Katherine Orellana Andrade
Behavior Technician
Ivon Orellana Castillo
Behavior Technician
Elizabeth Orellana- Castro
Behavior Technician
Jackeline Orellana-Martinez
Behavior Technician
Novada Orem
Behavior Technician
Milton Oriku
Behavior Technician
Laura Oringher, MA
Speech-Language Pathologist
Abby Orlansky, PA-C
Dermatology Physician
Chava Orlofsky, FNP-C
Family Nurse Practitioner
Sheryl Orr
Clinical Social Worker
Elena Ortega
Behavior Technician
Emma Ortega
Behavior Technician
Catherine Ortez
Behavior Technician
Anna Ortiz
Behavior Technician
Cristy Ortiz
Behavior Technician
Julissaida Ortiz
Behavior Technician
Natalia Ortiz
Behavior Technician
Andrea Ortiz Limon
Behavior Technician
Julissa Ortiz Ramos
Behavior Technician
Edmond Osanyade
Behavior Technician
Isioma Osawe
Behavior Technician
Emanuel Osborne
Behavior Technician
Jordan Osborne
Behavior Technician
Mariyah Osborne
Behavior Technician
Gyamfuah Ose Tutu
Behavior Technician
Anthony Osei
Behavior Technician
Christian Osei
Pharmacist

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.