Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michael K Idun, MD

Q: What is the NPI number for Michael Idun?

The National Provider Identifier (NPI) for Michael Idun is 1033186903, a Type 1 (individual) record in the CMS NPPES registry.

Anesthesiology Physician in Chambersburg, PA · enumerated 2006.

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

National Provider Identifier

1033186903

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Registry record

Entity type Individual (Type 1)

Name Michael K Idun

Credential MD

Sex Male

Practice address Chambersburg, PA, 17201

Phone (717) 267-7164

Fax (717) 267-7414

Enumeration date Mar 1, 2006

Last updated in NPPES Jan 30, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 25MA08022800 (NJ) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License MD425631 (PA) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD425631 (PA) 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
25-1716306	Other	PA	INFORMED
25-1716306	Other	PA	DEVON
001828361	Other	PA	HIGHMARK BLUE SHIELD
2183091	Other	PA	MAMSI
25-1716306	Other	PA	HEALTHNET/TRICARE
1573434	Other	PA	GATEWAY
25-1716306	Other	PA	INTERGROUP
25-1716306	Other	PA	FIRST HEALTH
050514	Other	PA	MEDICARE GROUP #
1928717	Other	PA	AETNA HMO
50079823	Other	PA	CAPITAL BLUECROSS
MD425631	Other	PA	MEDICAL LICENSE
240951	Other	PA	UNISON
25-1716306	Other	PA	MULTIPLAN/PHCS
G920-0101/85XWCU	Other	PA	CAREFIRST
25-1716306	Other	PA	SOUTH CENTRAL PREFERRED
P00627622	Other	PA	RAILROAD MEDICARE
PEARL	Other	PA	HEALTH AMERICA
10156623 0002	Medicaid	PA	-
120420418	Other	PA	DEPT OF LABOR

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

Where does Michael Idun practice?

The practice location on file with NPPES is in Chambersburg, PA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Michael Idun?

The National Provider Identifier (NPI) for Michael Idun is 1033186903, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Iwona Janicka Hospitalist Physician · Chambersburg, PA NPI 1902803257 Obasi Chukwunenye Hospitalist Physician · Chambersburg, PA NPI 1205834603 The Chambersburg Hospital General Acute Care Hospital · Chambersburg, PA NPI 1902804552 David Ebbitt Emergency Medicine Physician · Chambersburg, PA NPI 1609874858 Rosanna Pau Emergency Medicine Physician · Chambersburg, PA NPI 1972501146 Gokhan Gormus Hospitalist Physician · Chambersburg, PA NPI 1609874577 Laszlo Madaras Hospitalist Physician · Chambersburg, PA NPI 1689674400 Richard Bruner Hospitalist Physician · Chambersburg, PA NPI 1780684332

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-30.