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Mark C Ranck, M.D.

Radiation Oncology Physician in Fort Wayne, IN · enumerated 2008 · practices at Radiation Oncology Associates P C.

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

National Provider Identifier

1578710471

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Registry record

Entity type Individual (Type 1)
Name Mark C Ranck
Credential M.D.
Sex Male
Practice address 7910 W Jefferson Blvd Ste 110, Suite 110, Fort Wayne, IN, 46804
Phone (260) 436-4116
Fax (260) 459-2504
Enumeration date Aug 21, 2008
Last updated in NPPES Apr 14, 2025

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 35.140622 (OH) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 01072156A (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
0082915 Medicaid OH -
1578710471 Medicaid MI -
201160010 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.

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Frequently asked questions

Where does Mark Ranck practice?
The practice location on file with NPPES is in Fort Wayne, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Ranck?
The National Provider Identifier (NPI) for Mark Ranck is 1578710471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-14.