Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lawrence T Geoghegan, MD

Surgery Physician in Cambridge, MA · enumerated 2005 · practices at Massachusetts Institute of Technology.

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

National Provider Identifier

1477543031

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Registry record

Entity type Individual (Type 1)

Name Dr. Lawrence T Geoghegan

Credential MD

Sex Male

Practice address 77 Massachusetts Ave, Mit Medical Department E23-300, Cambridge, MA, 02139

Phone (617) 253-4988

Fax (617) 253-7265

Enumeration date Oct 25, 2005

Last updated in NPPES Dec 28, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 30208 (MA) Primary

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
0175161	Medicaid	MA	-
B33229	Other	-	BCBS
LAM12968	Other	-	BCBS
030208	Other	-	TUFTS

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

Is NPI 1477543031 active?

Yes, as of the latest NPPES snapshot, NPI 1477543031 is active (record last updated 2012-12-28).

How do I verify Lawrence Geoghegan's NPI record?

Cross-check NPI 1477543031 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-28.