Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tracy Lynn Mcgregor, M.D.

Clinical Genetics (M.D.) Physician in Cambridge, MA · enumerated 2008.

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

National Provider Identifier

1063687630

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Registry record

Entity type Individual (Type 1)

Name Dr. Tracy Lynn Mcgregor

Credential M.D.

Sex Female

Practice address 300 Third St, Cambridge, MA, 02142

Phone (617) 551-8200

Enumeration date Apr 24, 2008

Last updated in NPPES Dec 14, 2017

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 43791 (TN) Secondary

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 43791 (TN) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Tracy Mcgregor?

The National Provider Identifier (NPI) for Tracy Mcgregor is 1063687630, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tracy Mcgregor practice?

The practice location on file with NPPES is in Cambridge, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-14.