Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Eric R Thomas, M.D.

Ophthalmology Physician in Sioux Falls, SD · enumerated 2006.

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

National Provider Identifier

1588636484

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Registry record

Entity type Individual (Type 1)

Name Dr. Eric R Thomas

Credential M.D.

Sex Male

Practice address 6601 S Minnesota Ave Ste 200, Sioux Falls, SD, 57108

Phone (605) 336-6294

Fax (605) 336-0266

Enumeration date Feb 3, 2006

Last updated in NPPES Jul 5, 2026

Taxonomy & licenses

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 6006 (SD) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 6006 (SD) 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
1871589531	Other	-	AMERICA'S PPO
624D7TH	Other	MN	MNBS
135845	Other	MN	UCARE
4993172	Other	SD	WELLMARK OF SD
135845	Other	MN	UCARE MN
6300710	Medicaid	SD	-
17788	Other	-	AVERA HEALTH PLAN
46031185613	Medicaid	NE	-
542468000	Medicaid	MN	-
61096	Other	-	SANFORD HEALTH PLAN
HP79508	Other	-	HEALTHPARTNERS
460311856	Other	IA	WELLMARK OF IA
6006	Other	SD	DAKOTACARE
928181051321	Other	-	PREFERRED ONE

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

How do I verify Eric Thomas's NPI record?

Cross-check NPI 1588636484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588636484 active?

Yes, as of the latest NPPES snapshot, NPI 1588636484 is active (record last updated 2026-07-05).

Other providers at this practice address

Browse all →

Ryan Geraets Ophthalmology Physician · Sioux Falls, SD NPI 1154441608 Elizabeth Chiang Ophthalmology Physician · Sioux Falls, SD NPI 1336464882 Emily Walters Optometrist · Sioux Falls, SD NPI 1609154608 Elise in'T Veld Ophthalmology Physician · Sioux Falls, SD NPI 1215279856 Tyler Vermeer Optometrist · Sioux Falls, SD NPI 1801323118 Andrea Bordewyk Ophthalmology Physician · Sioux Falls, SD NPI 1255829776

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-05.