Susan Marie Mason, D.O.
Family Medicine Physician · Cedar Rapids, IA
Susan Marie Mason, D.O. is a family medicine physician with a practice address in Cedar Rapids, Iowa, and NPI 1841464591, issued on Apr 14, 2008. Check the license (Iowa DO04416, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Susan Marie Mason
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DO04416 IA
4416 IA
OT011926 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4325 Williams Blvd, Cedar Rapids, IA 52404
- Phone
- (319) 368-8400
- Enumerated
- Apr 14, 2008
- Record last updated
- Nov 8, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (319) 656-3319
- Medicare enrollment
- Enrolled (PECOS I20130729000454); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2007
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 4325 Williams Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melissa Kahler, M.D.Family Medicine Physician1346258951
- Michelle Vetsch, DNPFamily Nurse Practitioner1215212865
- Nicole Woolley, DNPFamily Nurse Practitioner1316471154
Verify Susan Marie Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license DO04416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
123 Medicare Part D claims for 36 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Metronidazole25 claims
- Triamcinolone Acetonide18 claims
- Doxycycline Hyclate17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Larew Internal Medicine PLCIowa City, IA
- Vohra Wound Physicians OF The West PCBettendorf, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan Marie Mason among 2,336 family medicine physician records in Iowa
Susan Marie Mason, D.O. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2007 · median 2006 among the 1,367 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
97 family medicine physician records list a practice address in Cedar Rapids
They are 97 of the 2,949 NPPES records with a practice address in Cedar Rapids, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Cedar Rapids → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Yang Ahn, MDCedar Rapids, IA 524041083617385
- Peter Ahn, MDCedar Rapids, IA 524041063416394
- Kristen Barnette, MDCedar Rapids, IA 524041134180276
- Casey Boyles, MDCedar Rapids, IA 524041669459921
- John Donatelli, M.D.Cedar Rapids, IA 524041487619789
- Timothy Ishmael, MDCedar Rapids, IA 524041902856198
- Colleen Keating, MDCedar Rapids, IA 524041295701373
- Joseph Kennedy, DOCedar Rapids, IA 524041427019561
Common questions
What is Susan Marie Mason, D.O.'s NPI number?
Susan Marie Mason, D.O.'s National Provider Identifier (NPI) is 1841464591, issued on Apr 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Susan Marie Mason, D.O. located?
The NPPES record lists a practice address at 4325 Williams Blvd, Cedar Rapids, IA, 52404. Phone: (319) 368-8400. Providers update this record themselves, so call before visiting.
How can I verify Susan Marie Mason, D.O.'s license?
NPPES lists Iowa license number DO04416, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Susan Marie Mason, D.O. prescribe under Medicare Part D?
In 2024, Susan Marie Mason, D.O. had 123 Medicare Part D claims for 36 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.