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 112 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
- J. Irsfeld, PH.D.Clinical Psychologist1174737415
- James IrunguDevelopmental Therapist1942740410
- Mercy IrunguRegistered Nurse1740605690
- Karen IrvineCounselor1790268498
- Jane IrvingBehavior Technician1083362966
- Shaquan IrvingBehavior Technician1184371346
- Walter IrvingCounselor1720409360
- Richard Irwin, MDPulmonary Disease Physician1619950722
- Melanie Irwin-Pietrowicz, MSWClinical Social Worker1871503896
- Tamika IsaacStudent in an Organized Health Care Education/Training Program1720782535
- Ashley IsaksonCase Manager/Care Coordinator1780965665
- Laura IsaroBehavior Technician1619540176
- Sureyya Iscan, PH.DClinical Psychologist1356408835
- Johnny IsenbergerNurse Practitioner1497987028
- Nosheen Ishaque, M.D.Internal Medicine Physician1912273087
- Augusta Ishola, FNPNurse Practitioner1457996704
- Tosin IsholaDevelopmental Therapist1548810963
- Ahmer Ishtiaq, MDInternal Medicine Physician1508205535
- Gaensley IsidorBehavior Technician1043917958
- John Iskander, M.D.Family Medicine Physician1295892867
- Nahida Islam, M.D.Hematology & Oncology Physician1568669646
- Raafe Islam, MDInternal Medicine Physician1629760715
- Suhayla Islam, DOFamily Medicine Physician1437899929
- Zeenat Islam, PA-CPhysician Assistant1114666260
- Ardit IslamajDriver1265830707
- Igrar Ismail-ZadeAnesthesiology Physician1346270006
- Margaret Israelian, LICSWClinical Social Worker1275546681
- Christopher Ito, M.D.Otolaryngology Physician1487953907
- Kouta Ito, M.D., M.S.Geriatric Medicine (Internal Medicine) Physician1295905115
- Mayuko Ito Fukunaga, M.D.Pulmonary Disease Physician1881804557
- Renata IvanovDevelopmental Therapist1972988731
- John Iwuc, M.D.Psychiatry Physician1851332498
- Immaculata Iwueke, NPPsychiatric/Mental Health Nurse Practitioner1588514160
- Suhasini Iyer, M.D.Geriatric Medicine (Internal Medicine) Physician1063495943
- Anthony Izzo, D.O.Neurology Physician1215198692
- Francesca Izzo, MDTrauma Surgery Physician1881182012
- Ehab Jabah, BDSDentist1740611516
- Manal JabahPublic Health Dentistry1871288746
- Adam JacherBehavior Technician1588474738
- Victoria Jachimczyk, M. EDCounselor1073956645
- Grace JacksonMarriage & Family Therapist1831900372
- Mercedes JacksonDevelopmental Therapist1083149751
- Peter JacksonBehavior Technician1558239541
- Rachael Jackson, MD, MPHStudent in an Organized Health Care Education/Training Program1275236523
- Sophie Jackson, RN, CNMAdvanced Practice Midwife1730801531
- Yanilka JacksonBehavior Technician1215677430
- Anthony JacobBehavior Technician1497673875
- Jason JacobStudent in an Organized Health Care Education/Training Program1659117570
- Joseph Jacob, MDDiagnostic Radiology Physician1912469495
- Subin Jacob-George, PA-CPhysician Assistant1831545995
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.