Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert M. Siwiec, M.D.

Gastroenterology Physician in Carmel, IN · enumerated 2008.

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

National Provider Identifier

1184880676

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert M. Siwiec

Credential M.D.

Sex Male

Practice address 11725 Illinois St Ste 275, Carmel, IN, 46032

Phone (317) 944-0980

Fax (317) 968-1348

Enumeration date Aug 4, 2008

Last updated in NPPES Mar 11, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036122288 (IL) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 5272620 (WI) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 01070921A (IN) 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
000000775536	Other	IN	ANTHEM
P01163479	Other	IN	RAILROAD MEDICARE
201059780	Medicaid	IN	-

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

How do I verify Robert Siwiec's NPI record?

Cross-check NPI 1184880676 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184880676 active?

Yes, as of the latest NPPES snapshot, NPI 1184880676 is active (record last updated 2025-03-11).

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Taha Shipchandler Otolaryngology Physician · Carmel, IN NPI 1023288230 Noah Parker Otolaryngology Physician · Carmel, IN NPI 1215100706 Robert Fujiki Speech-Language Pathologist · Carmel, IN NPI 1871151837 Mark Partain Audiologist · Carmel, IN NPI 1780238907

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-11.