Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jeffrey Paul Tillinghast, M.D.

Allergy & Immunology Physician in Saint Louis, MO · enumerated 2007 · practices at Associated Specialists in Medicine, PC.

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

National Provider Identifier

1447393301

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Jeffrey Paul Tillinghast

Credential M.D.

Sex Male

Practice address 969 N Mason Rd Ste 240, Saint Louis, MO, 63141

Phone (314) 542-0606

Fax (314) 542-0212

Enumeration date Feb 14, 2007

Last updated in NPPES Apr 25, 2022

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License R7B86 (MO) 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
118205	Other	MO	HEALTHLINK
28644	Other	MO	BLUE SHIELD
030000959	Other	MO	RAILROAD MEDICARE

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 1447393301 active?

Yes, as of the latest NPPES snapshot, NPI 1447393301 is active (record last updated 2022-04-25).

How do I verify Jeffrey Tillinghast's NPI record?

Cross-check NPI 1447393301 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 →

Barbara Jost Allergy & Immunology (Internal Medicine) Physician · Saint Louis, MO NPI 1144243031 Associated Specialists in Medicine, PC Allergy & Immunology Physician · Saint Louis, MO NPI 1306062955

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-25.