Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gary M Idelchik, M.D.

Interventional Cardiology Physician in Casper, WY · enumerated 2009.

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

National Provider Identifier

1811131311

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Gary M Idelchik

Credential M.D.

Sex Male

Practice address 1230 E 1st St, Casper, WY, 82601

Phone (307) 266-3174

Fax (307) 266-3177

Enumeration date Apr 28, 2009

Last updated in NPPES Sep 27, 2022

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License ME133430 (FL) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 259398 (NY) Secondary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 13381A (WY) 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
157420500	Medicaid	WY	-
102451000	Medicaid	FL	-
03824182	Medicaid	NY	-

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 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 Gary Idelchik?

Gary Idelchik is registered in NPPES with the primary taxonomy of Interventional Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

John Pickrell Cardiovascular Disease Physician · Casper, WY NPI 1891748703 Arianne Staffileno Family Nurse Practitioner · Casper, WY NPI 1184677023 Robert Novick Cardiovascular Disease Physician · Casper, WY NPI 1538106554 Wesley Hiser Interventional Cardiology Physician · Casper, WY NPI 1760429799 Allan Wicks Cardiovascular Disease Physician · Casper, WY NPI 1497792402 Annette Russell Medical Physician Assistant · Casper, WY NPI 1861439838 Henry Fisher Pulmonary Disease Physician · Casper, WY NPI 1063517506 Wyoming Cardiopulmonary Services, PC Cardiovascular Disease Physician · Casper, WY NPI 1992866560

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-27.