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 247)

Name
Roseline Zephirin
Behavior Technician
Tidiane Zerbo
Massage Therapist
Ayda Zergaw
Behavior Technician
Edinso Zetino
Behavior Technician
Dereje Zewdu, PHARMD
Pharmacist
Jin Zhang
Professional Counselor
Kaiyi Zhang
Mental Health Counselor
Katie Zhang, MD
Obstetrics & Gynecology Physician
Mengyuan Zhang, MS
Acupuncturist
Wendy Zhang
Family Nurse Practitioner
Xue-Guang Zhang, OD
Optometrist
Xuekai Zhang, PHD(UK),L.AC.(USA)
Acupuncturist
Yong Zhang
Acupuncturist
Yuanfen Zhang, M.D.
Psychiatry Physician
Yun Zhang, RN
Registered Nurse
Amy Zhao
Behavior Technician
Annie Zhao
Student in an Organized Health Care Education/Training Program
Kenneth Zhao, DDS
General Practice Dentistry
Qi Zhao
Acupuncturist
Xiumei Zhao
Registered Nurse
Christine Zheng
Behavior Technician
Jia Zheng
Acupuncturist
Nicole Zhong, PH.D.
Clinical Psychologist
Xiao Zhou, M.D.
Internal Medicine Physician
Farah Zia, MD
Hematology & Oncology Physician
Assi Ziadzi
Behavior Technician
Win-Ib Ziekah Somda
Behavior Technician
Clarissa Zies
Psychologist
Yawa Zigan
Behavior Technician
Kathryn Zimmerman, LMSW
Social Worker
Sharon Zimmerman
Behavior Technician
Orly Zimmerman-Leizerov, LCSW-C
Social Worker
Ornella Zindovic
Behavior Technician
Mary Ziomek, DDS
General Practice Dentistry
Carolyn Ziskind, RDN
Registered Dietitian
Steven Zito, CRNA
Certified Registered Nurse Anesthetist
Heaven Zollars
Behavior Technician
Zoe Zollinger, LGPC
Mental Health Counselor
Mohammed Zuaiter, M.D.
Anesthesiology Physician
Bonnie Zucker, PSY.D.
Clinical Psychologist
David Zuckerman, M.D.
Specialist
Lester Zuckerman, M.D.
Interventional Pain Medicine Physician
Jennifer Zuhl, MA
Speech-Language Pathologist
Jas Zuluaga
Behavior Technician
Kellie Zundel, LCSW
Clinical Social Worker
Francis Zuniga, PT, DPT
Physical Therapist
Oney Zuniga, MD
Nephrology Physician
Vicky Zuniga, LCSW-C, LICSW
Clinical Social Worker
Inna Zusman, LGPC
Mental Health Counselor

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.