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 126 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
- Thomas Klein, MDOtolaryngology Physician1710953898
- Teri Kleinberg, MDOphthalmology Physician1609187046
- Rachel KleinerCounselor1194910646
- Richard Kleinert, MDOphthalmology Physician1417949918
- Denise Kleister, NPNurse Practitioner1255302030
- Debra Klempner, NPNurse Practitioner1992085419
- Mark Klempner, M.D.Infectious Disease Physician1740267582
- Kaylee KlenkBehavior Analyst1144870726
- Jacqueline Klepinger, DOStudent in an Organized Health Care Education/Training Program1235072877
- Douglas Klier, M.A.Addiction (Substance Use Disorder) Counselor1356659155
- Carly Klimek, PA-CPhysician Assistant1124749981
- Dale Kline, BASocial Worker1538369764
- Sarah Kline, SLPSpeech-Language Pathologist1811871817
- Susan KlingensmithBehavior Analyst1447662556
- Dagmar Klinger, M.D.Nephrology Physician1578534327
- Vera Klinoff, PH.D.Clinical Neuropsychologist1124509534
- Jessica Kloppenburg, MDStudent in an Organized Health Care Education/Training Program1083354542
- Anthony Kluck, CRNACertified Registered Nurse Anesthetist1255961165
- Lindsey Kluck, NPNurse Practitioner1427587674
- Neil Kluger, MDHematology & Oncology Physician1023114022
- William Klunk, DPTPhysical Therapist1235786468
- Ian KluvitseBehavior Technician1013796176
- Rebecca Knapp, M.D.Psychiatry Physician1609854983
- Shawn KneelandMental Health Counselor1063249258
- Bethany KnightCounselor1043632490
- Gaia KnightPhysician Assistant1427940675
- Laura Knight, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1003532060
- Raeanna Knight, BCBABehavior Analyst1376050211
- Andrew Knorr, MA, LMHCMental Health Counselor1760761860
- Hannah KnowlesMental Health Counselor1174301550
- Kenneth Knowles, MDEmergency Medicine Physician1184041568
- Louisa Knowles, LMHCMental Health Counselor1215016035
- Kiley Knowlton, PA-CPhysician Assistant1992353908
- Christine KnudsenDevelopmental Therapist1417361106
- Kayla KnudsonDevelopmental Therapist1265904106
- Krista Knudson, NPNurse Practitioner1396980785
- Catherine KnuepferBehavior Technician1972272417
- Eric Ko, M.D., PH.D.Radiation Oncology Physician1639345929
- Wei-Che Ko, MDDermatology Physician1821523606
- Kimiyoshi Kobayashi, M.D.Internal Medicine Physician1477793487
- Karen KobusRegistered Nurse1598215329
- Hayley Koch, FNP-BCRegistered Nurse1700616240
- Jennifer Kodela, DOPulmonary Disease Physician1750813689
- Nicholas KoenInternal Medicine Physician1962031856
- David Koenig, CRNACertified Registered Nurse Anesthetist1972849404
- Sophia Kogan, MDPsychiatry Physician1366836736
- Lorna Kogon, NPNurse Practitioner1700850724
- Solange KogoumCounselor1548145725
- Edward Koh, MD PHDAnesthesiology Physician1417958372
- Hayley Kohler, MDEmergency Medicine Physician1770272064
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.