Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dennis E Kramer, M.D.

Sports Medicine (Orthopaedic Surgery) Physician in Boston, MA · enumerated 2006.

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

National Provider Identifier

1770541690

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Registry record

Entity type Individual (Type 1)

Name Dennis E Kramer

Credential M.D.

Sex Male

Practice address 319 Longwood Ave, Boston, MA, 02115

Phone (617) 355-6028

Fax (617) 731-5298

Enumeration date May 2, 2006

Last updated in NPPES Dec 3, 2012

Taxonomy & licenses

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License 227553 (MA) Primary

207XP3100X Pediatric Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 227553 (MA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 227553 (MA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2134632	Medicaid	MA	-
J41586	Other	MA	BCBS

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 Dennis Kramer?

The National Provider Identifier (NPI) for Dennis Kramer is 1770541690, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dennis Kramer practice?

The practice location on file with NPPES is in Boston, MA. 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 2012-12-03.