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Robert S Kramer, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Portland, ME · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1215036900

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Registry record

Entity type Individual (Type 1)
Name Robert S Kramer
Credential MD
Sex Male
Practice address 818 Congress St, Portland, ME, 04102
Phone (207) 773-8161
Fax (207) 773-1489
Enumeration date Sep 21, 2006
Last updated in NPPES Jul 23, 2013

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License MD10216 (ME) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Robert Kramer?
The National Provider Identifier (NPI) for Robert Kramer is 1215036900, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Kramer practice?
The practice location on file with NPPES is in Portland, ME. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-23.