Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark A Unroe, MD

Q: What is the NPI number for Mark Unroe?

The National Provider Identifier (NPI) for Mark Unroe is 1689832834, a Type 1 (individual) record in the CMS NPPES registry.

Pulmonary Disease Physician in Avon, IN · enumerated 2008.

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

National Provider Identifier

1689832834

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark A Unroe

Credential MD

Sex Male

Practice address 1115 N Ronald Reagan Pkwy, Avon, IN, 46123

Phone (317) 217-2888

Fax (317) 217-2999

Enumeration date May 23, 2008

Last updated in NPPES Mar 14, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01069968 (IN) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 128596 (NC) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 01069968A (IN) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 01069968A (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
000000725208	Other	IN	ANTHEM PIN
P01002370	Other	IN	RAILROAD MEDICARE PTAN
201027500	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

What is the NPI number for Mark Unroe?

The National Provider Identifier (NPI) for Mark Unroe is 1689832834, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Unroe practice?

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

Other providers at this practice address

Browse all →

Darren Caudill Internal Medicine Physician · Avon, IN NPI 1255327706 Robert Kemp Critical Care Medicine (Internal Medicine) Physician · Avon, IN NPI 1639127764 Meridian Medical Group PC Ambulatory Surgical Clinic/Center · Avon, IN NPI 1033167499 Jeffrey Ihlendorf Internal Medicine Physician · Avon, IN NPI 1205848728 Sheethu Sadasivan Internal Medicine Physician · Avon, IN NPI 1891981304 Joseph Lee Internal Medicine Physician · Avon, IN NPI 1003107517 Indiana Spine Group, PC Orthopaedic Surgery of the Spine Physician · Avon, IN NPI 1144667635 Jennifer Woodard Adult Health Clinical Nurse Specialist · Avon, IN NPI 1528435427

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-14.