Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald E Barker, M.D.

Surgery Physician in Chattanooga, TN · enumerated 2005.

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

National Provider Identifier

1164416707

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald E Barker

Credential M.D.

Sex Male

Practice address 979 E 3rd St, Suite 300, Chattanooga, TN, 37403

Phone (423) 267-0466

Fax (423) 757-0703

Enumeration date Sep 9, 2005

Last updated in NPPES Feb 18, 2019

Taxonomy & licenses

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License MD9474 (TN) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD9474 (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
1740076	Other	-	UHC
3003660	Medicaid	TN	-
62165877410	Other	-	JOHN DEERE HEALTHCARE
00458521A	Other	GA	MEDICAID
3066685	Other	-	BCBS OF TN
020041405	Other	-	RR MEDICARE
2596489 001	Other	-	CIGNA

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

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.

What specialty is Donald Barker?

Donald Barker is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Daniel Herz Pediatric Urology Physician · Chattanooga, TN NPI 1306849849 Plaza Surgery, G.P. Ambulatory Surgical Clinic/Center · Chattanooga, TN NPI 1497750400 Adel Shenouda Nephrology Physician · Chattanooga, TN NPI 1518963990 Channappa Chandra Orthopaedic Surgery Physician · Chattanooga, TN NPI 1073510509 Mitchell Mutter Cardiovascular Disease Physician · Chattanooga, TN NPI 1326047622 Charles Brice Surgery Physician · Chattanooga, TN NPI 1124029194 Michael Goodman Gastroenterology Physician · Chattanooga, TN NPI 1639171481 Ut Physicians Inc Internal Medicine Physician · Chattanooga, TN NPI 1770575490

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-18.