1. Home
  2. Directory
  3. Iowa
  4. City
  5. Radiology
  6. NPI Profile

DR. MARK WILLIAM DION MD
NPI 1447252010
Radiology - Radiation Oncology in Iowa City, IA

Active since August 12, 2005
200 HAWKINS DR, IOWA CITY, IA 52242(319) 356-2699(319) 356-1530 Get Directions Write a Review

NPPES record last updated: July 1, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mark William Dion Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK WILLIAM DION MD (NPI 1447252010) is an individual radiation oncology provider in Iowa City, Iowa, licensed in Iowa (25680) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1447252010
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameDR. MARK WILLIAM DIONCredential: MD
Location Address200 HAWKINS DRIowa City, IA 52242
Mailing Address200 Hawkins DrIowa City, IA 52242 · (319) 356-2699 · Fax (319) 356-1530
Phone(319) 356-2699
Fax(319) 356-1530
Sole ProprietorNo
Enumeration DateAugust 12, 2005
Last NPPES UpdateJuly 1, 2010
✔ NPI 1447252010 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License✔ Licensed in IA · 25680
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
200 HAWKINS DR, Iowa City, IA 52242
Open in Google Maps ↗

Other Identifiers 5

Medicare PIN920005760IA
Other21785IA · Wellmarck Bcbs
Medicaid2243212IA
Medicare UPINA01837
Medicare PIN21785IA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANGIL LEE M.D.
Emergency Medicine
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-2233
RAMI G. EL ABIAD M.D.
Internal Medicine (Gastroenterology)
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-4901
GRERK SUTAMTEWAGUL MD
Internal Medicine (Hematology & Oncology)
200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242
Johnson County (319) 356-1616
DR. KALEB TANNER VEIT D.O.
Internal Medicine (Critical Care Medicine)
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 356-2320
OMAR JABER M.D
Chronic Disease Hospital
200 HAWKINS DR
IOWA CITY, IA 52242
Johnson County (319) 471-8958
JENNIFER MANCUSO MS, CGC
Genetic Counselor, MS
200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242
Johnson County (319) 384-7983
ASHLEY KAISER M.D.
Obstetrics & Gynecology
200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242
Johnson County (319) 356-2294
MRS. NANCY JANE MILLICE
Health Educator
200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242
Johnson County (319) 356-3825

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Dion's NPI number?

The NPI number for Mark Dion is 1447252010. It was assigned to this individual provider in the NPPES registry on August 12, 2005.

Where is Mark Dion located?

Mark Dion practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-2699.

What is Mark Dion's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

When was this NPI record last updated?

The NPPES record for Mark Dion was last updated on July 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.