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 122)

Name
Marissa Kirby
Mental Health Counselor
Megan Kirby, PSYD
Clinical Psychologist
Grace Kirby-Steinau, MSW, LICSW
Clinical Social Worker
Kaitlyn Kirk
Developmental Therapist
Joseph Kirkpatrick, MD
Cardiovascular Disease Physician
Rosemary Kirousis, ANP
Nurse Practitioner
Catherine Kirsch
Clinical Social Worker
Daniel Kirsch, M.D.
Psychiatry Physician
Martha Kirsch
Clinical Social Worker
Yelena Kisel, NP
Family Nurse Practitioner
Vladimir Kiselev, M.D.
Surgery Physician
Ilze Kiselis, MSRD LDN
Registered Dietitian
Jennifer Kiser
Marriage & Family Therapist
Lauren Kisiel, M.A
Counselor
Bridget Kissi
Behavior Technician
Miriam Kissin, PSY.D.
Clinical Psychologist
Yui Kitayama, MSN, APRN, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner
Alexander Kitto, MD
Student in an Organized Health Care Education/Training Program
Michelle Kittredge
Developmental Therapist
Kara Kittredge-Milotte, LICSW
Clinical Social Worker
Roslyn Klarou, OT
Occupational Therapist
Christian Klaucke, M.D.
Emergency Medicine Physician
Austin Klein, MD
Student in an Organized Health Care Education/Training Program
Daniel Klein, LCSW
Clinical Social Worker
Ilyana Klein, NP
Adult Health Nurse Practitioner
Kate Klein, ACNP
Nurse Practitioner
Megan Klein, MS, CCC-SLP
Speech-Language Pathologist
Sarah Klein, NP
Nurse Practitioner
Thomas Klein, MD
Otolaryngology Physician
Teri Kleinberg, MD
Internal Medicine Physician
Rachel Kleiner
Counselor
Richard Kleinert, MD
Ophthalmology Physician
Denise Kleister, NP
Nurse Practitioner
Debra Klempner, NP
Nurse Practitioner
Mark Klempner, M.D.
Infectious Disease Physician
Kaylee Klenk
Behavior Analyst
Douglas Klier, M.A.
Addiction (Substance Use Disorder) Counselor
Carly Klimek, PA-C
Physician Assistant
Dale Kline, BA
Social Worker
Sarah Kline, SLP
Speech-Language Pathologist
Susan Klingensmith
Developmental Therapist
Dagmar Klinger, M.D.
Nephrology Physician
Vera Klinoff, PH.D.
Clinical Psychologist
Jessica Kloppenburg, MD
Student in an Organized Health Care Education/Training Program
Anthony Kluck, CRNA
Certified Registered Nurse Anesthetist
Lindsey Kluck, NP
Nurse Practitioner
Neil Kluger, MD
Hematology & Oncology Physician
William Klunk, DPT
Physical Therapist
Ian Kluvitse
Behavior Technician
Rebecca Knapp, M.D.
Psychiatry Physician

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.