Doctors and health care providers in Worcester, MA
13,166 individual NPPES records list a practice address in Worcester, 2nd of 406 Massachusetts cities. The largest group is behavior technician: 1,487, 11% of the city's records, against 5% across Massachusetts. Page 180 of 264.
The 8 largest groups in Worcester
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Worcester in Massachusetts
- Rank in Massachusetts2nd of 406 cities by records
- Share of the state6% of Massachusetts's records
- Specialties present25 or more taxonomy codes
- Top three groups26.2% of all records
- Behavior Technician rank2nd of the 10 Massachusetts cities with the most
Compared with Massachusetts as a whole, Worcester has 2.4× the state's share of nurse practitioner records and 0.52× its share of physical therapist records.
Providers in Worcester, alphabetically
- Nancy Oliver, O.T.R/LOccupational Therapist1285936831
- Beatriz Olivera Rodriguez, MDDiagnostic Radiology Physician1982231213
- Ashley OliveriSocial Worker1437708203
- Pittsma OlivierDevelopmental Therapist1386148930
- William Olivier, LICSWClinical Social Worker1275864761
- Anna Olivo, NP-CFamily Nurse Practitioner1326569450
- Annie Ollila, MSW LICSWClinical Social Worker1417211038
- Miguel Olmedo, DNPNurse Practitioner1154333920
- Abigale OlmstedBehavior Technician1619562097
- Adedoja OlogunterePsychiatric/Mental Health Nurse Practitioner1124880976
- Katherine Olshan, MDPediatric Gastroenterology Physician1932596855
- Carolann Olson, MS, CCC-SLPSpeech-Language Pathologist1134582430
- David Olson, M.D.Psychiatry Physician1982687679
- Erik Olson, PA-CPhysician Assistant1992375398
- Hayleigh OlsonBehavior Technician1518886621
- Jenna OlsonBehavior Analyst1033808571
- Marianne Olson, LPNLicensed Practical Nurse1952550964
- Megan OlsonBehavior Technician1093414203
- Opeoluwa Olukorede, MDStudent in an Organized Health Care Education/Training Program1053015826
- Tope Oluwa, MSWClinical Social Worker1457476210
- Amos OmelerDevelopmental Therapist1114467651
- Abdulkadir Omer, MDEndocrinology, Diabetes & Metabolism Physician1750548996
- Rekia Omer, RNRegistered Nurse1235578170
- Izabela Omondi, NPFamily Nurse Practitioner1326351453
- Maryam Omran, MDStudent in an Organized Health Care Education/Training Program1235833385
- Stephanie OmuemuRegistered Nurse1609159342
- Mark OnderdonkDevelopmental Therapist1952710469
- Eve OneyBehavior Technician1669338406
- Sarah OnoratoDevelopmental Therapist1164610150
- Stephanie OnweBehavior Technician1538034301
- Nneka Onwubueke, M.D.Internal Medicine Physician1518949767
- Jennifer Onwuka, RNPsychiatric/Mental Health Nurse Practitioner1679044127
- Mercy OnwukaBehavior Technician1083536262
- Brianna OnyiorahBehavior Technician1174298970
- Ronald OparaDevelopmental Therapist1154820611
- Anisa OparakuPharmacist1871141846
- Michelle OpareStudent in an Organized Health Care Education/Training Program1124969878
- Mary Opatka, R.N.Registered Nurse1033255658
- Daniel OpokuBehavior Technician1114846763
- Dennis Opoku TwumasiBehavior Technician1912718685
- Florence Opoku-FofieMental Health Counselor1306773874
- Ransford OpongCommunity Health Registered Nurse1356063960
- Bertha OppongRegistered Nurse1649950619
- Gifty OppongCommunity Health Registered Nurse1669106381
- Desiree OquendoDevelopmental Therapist1134640857
- Margarita OquendoBehavior Technician1659956829
- Shahira Orcel, RD, LDN, CNSCRegistered Dietitian1790327450
- David OrellanaBehavior Technician1124945100
- Terra Organisciak, PA-CPhysician Assistant1396592259
- Brandel OrhinBehavior Technician1003644923
The largest Massachusetts cities
- Boston41,865
- Springfield8,553
- Cambridge5,145
- Brockton4,287
- Milford3,459
How to read this directory
Worcester, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 13,166 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 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 2024 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 (1,487 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,031 and Mental Health Counselor with 929). 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 188 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.
For Worcester 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 Worcester, MA?
There are 13,166 registered healthcare providers in Worcester, MA, covering 25 or more 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 1,487.
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.