NPI Portal NPI Lookup & Verification

Dr. Eric R Thomas, M.D.

Dr. Eric R Thomas is a Ophthalmology Physician provider (Ophthalmology) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1588636484 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1588636484
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 6053366294
Fax 6053360266
Enumeration date 2006-02-03
Last updated in NPPES 2023-01-03

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207WX0107X Retina Specialist (Ophthalmology) Physician Secondary 6006 SD
207W00000X Ophthalmology Physician Primary 6006 SD

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
Copy-ready billing details
Provider: Eric Thomas, M.D.
NPI: 1588636484
Taxonomy: 207W00000X (Ophthalmology Physician)
Address: 6601 S MINNESOTA AVE STE 200, Sioux Falls, SD, 57108

Other providers at this practice address

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

Verify this record

Cross-check NPI 1588636484 against the authoritative CMS record: view Dr. Eric R Thomas on the official NPPES registry .

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 or validate an NPI number.

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 2023-01-03).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-01-03.