Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marc W Gerdisch, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Indianapolis, IN · enumerated 2006.

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

National Provider Identifier

1508822255

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Marc W Gerdisch

Credential MD

Sex Male

Practice address 1701 N Senate Blvd, Indianapolis, IN, 46202

Phone (317) 962-3256

Enumeration date Apr 21, 2006

Last updated in NPPES Apr 2, 2026

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 01048049A (IN) Primary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 036079121 (IL) Secondary

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
202172	Other	-	URBANA/ROCKFORD/MOLINE
36079121	Medicaid	IL	-
S26620	Other	-	COOK GROUP
344390	Other	-	DUPAGE GROUP

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 Marc Gerdisch practice?

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

What is the NPI number for Marc Gerdisch?

The National Provider Identifier (NPI) for Marc Gerdisch is 1508822255, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Salvatore Vitale Anesthesiology Physician · Indianapolis, IN NPI 1043215353 James Stansbury Anesthesiology Physician · Indianapolis, IN NPI 1548267149 Stuart Abramson Nephrology Physician · Indianapolis, IN NPI 1821097148 Areeba Kara Internal Medicine Physician · Indianapolis, IN NPI 1528069978 Todd Biggerstaff Internal Medicine Physician · Indianapolis, IN NPI 1891796157 Patrick Mcquillan Internal Medicine Physician · Indianapolis, IN NPI 1669473989 Ellen Underwood Family Nurse Practitioner · Indianapolis, IN NPI 1508858598 Kirby Slifer Critical Care Medicine (Internal Medicine) Physician · Indianapolis, IN NPI 1073507422

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-02.