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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Ryan Papenfuss, D.O.

Diagnostic Radiology Physician in Boise, ID · enumerated 2007.

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

National Provider Identifier

1326257064

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Ryan Papenfuss
Credential D.O.
Sex Male
Practice address 1055 N Curtis Road, Boise, ID, 83706
Phone (208) 367-2161
Fax (208) 367-2989
Enumeration date May 21, 2007
Last updated in NPPES Nov 30, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License O-0616 (ID) Primary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License DO154120 (OR) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 125049736 (IL) Secondary
2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License 4081 (IA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 4081 (IA) Secondary
2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License 4081 (IA) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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 Papenfuss's NPI record?
Cross-check NPI 1326257064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326257064 active?
Yes, as of the latest NPPES snapshot, NPI 1326257064 is active (record last updated 2011-11-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-30.