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

Dr. Claus Hamann, MD

Individual provider Internal Medicine Physician · NPI 1861483752

Dr. Claus Hamann, MD is an Internal Medicine Physician in Westborough, Massachusetts. Works from 3 locations. Licensed in Massachusetts and Maine.

Licensed in
MA, ME
In the registry since
2005
Specialties on file
3
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

1400 Computer Dr Ste 301
Westborough, MA 01581-1790
Phone: (617) 420-5316
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 992 Union St, Bangor, ME 04401-3057 — (207) 992-2601
  • 10 Dorrance St Ste 700, Providence, RI 02903-2014 — (833) 229-0957

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence MD20639 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence 75389 (MA)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence 75389 (MA)

Record details

NPI number1861483752
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 31, 2005
Last updated in NPPESJanuary 3, 2020
Certification dateJanuary 3, 2020
Mailing address797 Wilson St, Beacon Health, Brewer, ME 04412-1000

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