Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ruth E Lamar, M.D.

Medical Oncology Physician in Franklin, TN · enumerated 2006 · practices at Tennessee Oncology Pharmacy Dispensing.

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

National Provider Identifier

1578597704

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Registry record

Entity type Individual (Type 1)

Name Ruth E Lamar

Credential M.D.

Sex Female

Practice address 4488 Carothers Pkwy Ste 300, Franklin, TN, 37067

Phone (615) 591-4764

Fax (615) 591-7947

Enumeration date Jul 11, 2006

Last updated in NPPES Oct 3, 2019

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 20297 (TN) 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
4093875	Other	-	BCBS OF TN
P00172275	Other	-	RAILROAD MEDICARE
3070225	Medicaid	TN	-
4236896	Other	-	AETNA
64913080	Medicaid	KY	-

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 specialty is Ruth Lamar?

Ruth Lamar is registered in NPPES with the primary taxonomy of Medical Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Patrick Murphy Medical Oncology Physician · Franklin, TN NPI 1487672291 Julie Means Medical Oncology Physician · Franklin, TN NPI 1982703328 Kathryn Beckermann Hematology & Oncology Physician · Franklin, TN NPI 1023375391 Catherine Benson Nurse Practitioner · Franklin, TN NPI 1548621824 Rodney Dorand Hematology & Oncology Physician · Franklin, TN NPI 1215424080 Tennessee Oncology Pharmacy Dispensing Non-Pharmacy Dispensing Site · Franklin, TN NPI 1386279123

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-03.