Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jeffrey A Haas, DO

Rheumatology Physician in Morristown, TN · enumerated 2005.

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

National Provider Identifier

1821080458

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Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey A Haas

Credential DO

Sex Male

Practice address 1530 W Aj Hwy, Morristown, TN, 37814

Phone (423) 586-4336

Fax (423) 585-4343

Enumeration date Aug 19, 2005

Last updated in NPPES Feb 8, 2008

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License DO01307 (TN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
4011630	Other	TN	BCBS
3305914	Medicaid	TN	-

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 specialty is Jeffrey Haas?

Jeffrey Haas is registered in NPPES with the primary taxonomy of Rheumatology 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-08.