2026 data CMS NPPES NUCC Taxonomy

Doctors in Worcester, MA

Compiled from official public sources by the PlainDoctor editorial team.

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

12,782
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
1,314 providers
Massachusetts
State
MA

12,782 healthcare providers across 20 specialties

Worcester, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 12,782 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 Worcester - 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 Worcester 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 Worcester is weighted toward Behavior Technician (1,314 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,088 and Mental Health Counselor with 927). 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 Massachusetts's population, Worcester reports roughly 182.6 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 Massachusetts, Worcester ranks #2 of 400 cities tracked by provider count, accounting for 6% of the state's registered providers.

For Worcester 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.

12,782
Providers
20
Specialties
#2
of 400 MA cities
6%
of MA providers
182.6
Per 100K (state)

Which specialties are most common in Worcester

Behavior Technician 1,314
Student in an Organized Health Care Education/Training Program 1,088
Mental Health Counselor 927
Developmental Therapist 785
Clinical Social Worker 560
Counselor 560
Internal Medicine Physician 524
Nurse Practitioner 458
Physician Assistant 395
Registered Nurse 323
Social Worker 280
Behavior Analyst 254
Physical Therapist 221
Occupational Therapist 211
Pharmacist 192
Emergency Medicine Physician 183
Family Nurse Practitioner 170
Pediatrics Physician 163
Family Medicine Physician 163
Speech-Language Pathologist 158

Healthcare Providers (Page 173)

Name
Ryan O'Neil
Behavior Technician
Samantha O'Neil, PA-C
Physician Assistant
Maureen O'Neil-Orcutt, M.S. OTRL
Specialist
Jessica O'Neill, LCSW
Social Worker
Joanna O'Neill
Developmental Therapist
Kaylyn O'Neill, OTR/L
Occupational Therapist
Rachael O'Neill, LMHC
Mental Health Counselor
Shawna O'Neill
Counselor
Deirdre O'Reilly, MD, MPH
Pediatrics Physician
Mary Linda O'Reilly, NP
Psychiatric/Mental Health Nurse Practitioner
Ellen O'Rourke, LIC. AC.
Acupuncturist
Gregory O'Rourke, M.A.
Mental Health Counselor
Megan O'Rourke
Social Worker
Michelle O'Rourke, NP
Nurse Practitioner
Nancy O'Rourke, NP
Nurse Practitioner
Carol O'Shea, OTR
Occupational Therapist
Colleen O'Shea, L.M.H.C.
Mental Health Counselor
James O'Shea, M.D.
Medical Oncology Physician
Michael O'Shea, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Sheila O'Shea, PA
Physician Assistant
Erin O'Shea Paudel, D.O.
Pulmonary Disease Physician
Sorcha O'Sullivan-Murphy, NP
Nurse Practitioner
Laura O'Tell, M.A.
Mental Health Counselor
Robyn O'Toole, LICSW
Clinical Social Worker
Lina Obando, LMHC
Mental Health Counselor
Katrina Obarski, PTA
Physical Therapy Assistant
Onyekachi Obeke
Behavior Technician
Ademola Obele, PMHNP-BC
Psychiatric/Mental Health Registered Nurse
Denise Obeng
Prosthetics Case Management
Lisa Obeng, RN
Home Health Registered Nurse
Nicholas Obeng, RN
Registered Nurse
Victoria Obeng
Mental Health Counselor
Anjali Oberoi, MD, MPH
Student in an Organized Health Care Education/Training Program
Neeru Oberoi, M.D.
Anesthesiology Physician
Kiely Obert
Behavior Analyst
Chinasa Obijiaku, PMHNP-BC
Psychiatric/Mental Health Registered Nurse
Ezinne Obijiaku
Psychiatric/Mental Health Nurse Practitioner
Owen Oboite
Internal Medicine Physician
Julia Obrycki
Behavior Technician
Kelly Ocallahan, M.D.
Gastroenterology Physician
Mohamad Och, M.D.
Psychiatry Physician
Jonathan Ochab, DMD
General Practice Dentistry
Gabriel Ochoa, GENERAL DENTISTRY
Dentist
Judith Ockene, PH.D.
Clinical Psychologist
Joyce Oconnell
Behavior Technician
Melissa Oconnell
Behavior Analyst
Kevin Oconner, PH.D.
Clinical Social Worker
Denise Oconnor
Occupational Therapy Assistant
Jennifer Oconnor
Peer Specialist
Mariel Oconnor, MD
Student in an Organized Health Care Education/Training Program

Nearby Cities in Massachusetts

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

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Worcester, MA?
There are 12,782 registered healthcare providers in Worcester, MA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Worcester?
The most common specialties in Worcester are Behavior Technician, Student in an Organized Health Care Education/Training Program, Mental Health Counselor, Developmental Therapist, Clinical Social Worker. Behavior Technician has the most providers with 1,314.

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.