Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Richard A Haas, MD

Individual provider Internal Medicine Physician · NPI 1023017373

Richard A Haas, MD is an Endocrinology in Worcester, Massachusetts. Graduated from University of California, San Francisco School of Medicine in 1977, 49 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
49
Trained at
University of California, San Francisco School of Medicine
Licensed in
MA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 856-3206
Fax: (774) 442-4668
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 242 Green St, Gardner, MA 01440-1336 — (978) 630-2770

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 49080 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 49080 (MA)

Record details

NPI number1023017373
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2005
Last updated in NPPESOctober 26, 2020
Certification dateOctober 26, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyENDOCRINOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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