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

Thomas C Hattan, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1598708315

Thomas C Hattan, MD is an Internal Medicine in Lewiston, Maine. Graduated from Saint Louis University School of Medicine in 1999, 27 years ago. Practices with Central Maine Medical Center, a 347-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
27
Trained at
Saint Louis University School of Medicine
Licensed in
ME
In the registry since
2006
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

76 High St
Lewiston, ME 04240-7649
Phone: (207) 795-2800
Fax: (207) 795-2802
Show map & directions

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

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 017438 (ME)

Record details

NPI number1598708315
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2006
Last updated in NPPESOctober 21, 2010
Mailing address76 High St, Lewiston, ME 04240-7649

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Central Maine Medical Center — 347 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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