DR. MARK WILLIAM DION (MD) – Radiation Oncology Physician, NPI 1447252010

DR. MARK WILLIAM DION (MD) is a healthcare provider. based in Iowa city, Iowa. specializing in Radiation Oncology Physician. They hold the professional credentials MD. They hold a License No. 25680 (IA). The NPI Number for DR. MARK WILLIAM DION (MD) is 1447252010

Main info

Male
49 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARK WILLIAM DION (MD)
NPI
1447252010
Phone
(319) 356-2699
Address
200 HAWKINS DR
Enumeration Date
12 August 2005
Last Update Date
1 July 2010

Doctor Profile

Medical School Name
UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Secondary Phone
-
Graduation Year
1977 (49 years ago)
PAC ID
0840328738
Group Practice PAC ID
7618884230
Professional Enrollment ID
I20100513000901
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. MARK WILLIAM DION (MD)

  • University of Iowa Hospitals & Clinics, 200, Hawkins Drive, Iowa City, Johnson County, Iowa, 52245, United States

    IOWA CITY, IA 52242

    Phone: (319) 356-2699

    Fax: (319) 356-1530

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 52242)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 7618884230View full group profile

Reviews

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Frequently asked questions

What number should I use to identify DR. MARK WILLIAM DION (MD) for billing?
Administrative and clinical systems typically use NPI 1447252010 for DR. MARK WILLIAM DION (MD).
Does the public listing show DR. MARK WILLIAM DION (MD) as active?
DR. MARK WILLIAM DION (MD)'s NPI record reflects an active status in NPPES.
What type of care does DR. MARK WILLIAM DION (MD) provide?
DR. MARK WILLIAM DION (MD)'s profile centers on Radiation Oncology Physician. Clinical services aligned with this taxonomy classification.
What city is tied to DR. MARK WILLIAM DION (MD)?
The directory associates DR. MARK WILLIAM DION (MD) with Iowa City, Iowa. Check all listed addresses for suites or satellite offices.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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