Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Lynn Jefferies Jr., M.D.

Advanced Heart Failure and Transplant Cardiology Physician in Memphis, TN · enumerated 2006.

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

National Provider Identifier

1619920469

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name John Lynn Jefferies Jr.

Credential M.D.

Sex Male

Practice address 1211 Union Ave Ste 965, Memphis, TN, 38104

Phone (901) 435-8550

Fax (901) 516-0933

Enumeration date May 19, 2006

Last updated in NPPES Dec 1, 2025

Taxonomy & licenses

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 35.096072 (OH) Secondary

207RA0001X Advanced Heart Failure and Transplant Cardiology Physician Allopathic & Osteopathic Physicians · License 57888 (TN) Primary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 33376 (KY) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 26120 (MS) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 57888 (TN) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 60245 (MN) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 57888 (TN) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 26120 (MS) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 35096072 (OH) Secondary

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

Is NPI 1619920469 active?

Yes, as of the latest NPPES snapshot, NPI 1619920469 is active (record last updated 2025-12-01).

How do I verify John Jefferies's NPI record?

Cross-check NPI 1619920469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-01.