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 182 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
- Katya Ostrovsky, CNPNurse Practitioner1194881789
- John Ostrowski, MS, ATCAthletic Trainer1528088424
- Simon Ostrowski, MDEmergency Medicine Physician1184245979
- Ankur Oswal, D.M.DGeneral Practice Dentistry1578902672
- Joselle Otero Palacios, M.D.Pediatric Emergency Medicine (Pediatrics) Physician1366672438
- Naomi Oti, AGACNP-BCAcute Care Nurse Practitioner1619542610
- James Otis, M.D.Neurology Physician1184687618
- John Otoole, R.PHPharmacist1689738023
- Eric Otterson, PA-CPhysician Assistant1447661251
- Patrick OttoCounselor1609797257
- Tracey Otto, MDDermatology Physician1215666995
- Ekim OtucuStudent in an Organized Health Care Education/Training Program1255271680
- Setou OuattaraSocial Worker1376811711
- Daniel Ouellette, DDSGeneral Practice Dentistry1558375931
- Haylee OuelletteMental Health Counselor1598649576
- Nicole OuelletteBehavior Technician1336814573
- Kayla Overly, PAPhysician Assistant1720421639
- Margaret Owegi, D.O.Neurology Physician1477718153
- Aaron OwensBehavior Analyst1134615792
- Amanda Owens, MSWClinical Social Worker1295222644
- Christopher Owens, MDAnatomic Pathology Physician1275687527
- Erin Owens, FNPNurse Practitioner1891341129
- Michael OwinBehavior Technician1144140674
- Daniella OwusuBehavior Technician1275254930
- George OwusuBehavior Technician1174442735
- Janell OwusuBehavior Technician1992545610
- Jasmine OwusuBehavior Technician1851244784
- Jermaine OwusuMental Health Counselor1316625726
- Jessica OwusuBehavior Technician1326645482
- Rebecca Owusu, MSWCounselor1447195292
- Kenneth Owusu AnsahCounselor1275401341
- Brittany Owusu-Adjei, MDStudent in an Organized Health Care Education/Training Program1295363976
- Kezia Owusu-AnsahDevelopmental Therapist1528567112
- Joseph Oyer, M.D.Specialist1700828639
- Tarunjeet Pabla, DMDDentist1407011687
- Joanelys PabonBehavior Technician1427697861
- David PaceDiagnostic Radiology Physician1871730150
- Katharine PaceMental Health Counselor1215244504
- Heather Pacek, OTR/LOccupational Therapist1932401940
- Nicholas Pacella, M.D.Pediatrics Physician1487601068
- Jakub Pach, M.D.Internal Medicine Physician1730527425
- Ashly PachecoBehavior Technician1881267078
- Brooke PachecoDevelopmental Therapist1235788993
- Katrina PachecoPhysician Assistant1831025717
- Luigi Pacifico, DOCardiovascular Disease Physician1144294273
- Ira Packer, PHDPsychologist1942799697
- Kadie PadaratBehavior Technician1922781962
- Vanessa PadavanoPhysical Therapist1720122393
- Sean PaddenMental Health Counselor1518249242
- Rebecca PaddockStudent in an Organized Health Care Education/Training Program1255270799
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.