Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Irwin Petersen, MD

Internal Medicine Physician in Tonganoxie, KS · enumerated 2006.

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

National Provider Identifier

1881647543

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Irwin Petersen

Credential MD

Sex Male

Practice address 21107 Donahoo Rd, Tonganoxie, KS, 66086

Phone (913) 742-4084

Fax (913) 742-4086

Enumeration date May 17, 2006

Last updated in NPPES Oct 8, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 04-21601 (KS) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0421601 (KS) 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
2050317102	Other	-	RAILROAD MEDICARE
100135660B	Medicaid	KS	-
13217089	Other	-	BCBS

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

Where does Mark Petersen practice?

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

What is the NPI number for Mark Petersen?

The National Provider Identifier (NPI) for Mark Petersen is 1881647543, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Roger Bidwell Nurse Practitioner · Tonganoxie, KS NPI 1669425385 Lee Heath Nurse Practitioner · Tonganoxie, KS NPI 1801849054 Fredrick Short Family Medicine Physician · Tonganoxie, KS NPI 1780637868 Mid America Senior Management LLC Internal Medicine Physician · Tonganoxie, KS NPI 1942356977 Kimberly Buckley Family Nurse Practitioner · Tonganoxie, KS NPI 1265615504 Timothy Badger Adult Health Nurse Practitioner · Tonganoxie, KS NPI 1316371198 Mid America Senior Management Aco LLC Internal Medicine Physician · Tonganoxie, KS NPI 1326888900

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-08.