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

Mr. John Dean Klemperer, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1457337172

Mr. John Dean Klemperer, MD is a Cardiac Surgery in Bangor, Maine. Graduated from State University of New York at Buffalo School of Medicine in 1990, 36 years ago. Practices with Eastern Maine Medical Center, a 659-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
36
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
ME
In the registry since
2005
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

417 State St Ste 421
Bangor, ME 04401-6639
Phone: (207) 973-5293
Fax: (207) 973-5263
Show map & directions

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

Additional practice locations (1)

  • 489 State St, Bangor, ME 04401-6616 — (207) 973-7000

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 015166 (ME)

Record details

NPI number1457337172
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 15, 2005
Last updated in NPPESApril 9, 2020
Certification dateApril 9, 2020
Mailing address43 Whiting Hill Rd Ste 300, Brewer, ME 04412-1006

Medicare enrollment

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

Medicare specialtyCARDIAC SURGERY
Also practisesTHORACIC SURGERY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Eastern Maine Medical Center — 659 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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