NPI Portal NPI Lookup & Verification

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

Mark S Gresla, M.D.

Family Medicine Physician in Decatur, IN · enumerated 2006.

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

National Provider Identifier

1467482034

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Registry record

Entity type Individual (Type 1)
Name Mark S Gresla
Credential M.D.
Sex Male
Practice address Decatur, IN, 46733
Phone (260) 724-2145
Fax (260) 728-3853
Enumeration date Jul 3, 2006
Last updated in NPPES Oct 15, 2025

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01034460A (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
9131 Other IN NO. IN PHP
100146990A Medicaid IN -
000000087488 Other IN ANTHEM PIN

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.

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Frequently asked questions

How do I verify Mark Gresla's NPI record?
Cross-check NPI 1467482034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1467482034 active?
Yes, as of the latest NPPES snapshot, NPI 1467482034 is active (record last updated 2025-10-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-15.