Matthew Fox, MD
Family Medicine Physician · Marion, IA
Matthew Fox, MD is a family medicine physician with a practice address in Marion, Iowa, and NPI 1780644849, issued on Mar 24, 2006. Check the license (Iowa 31973, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew Fox
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 31973 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3701 Katz Dr, Marion, IA 52302
- Phone
- (319) 377-2552
- Enumerated
- Mar 24, 2006
- Record last updated
- Oct 31, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (319) 447-1347
- Medicaid ID
- 0156984 IA
- Medicare enrollment
- Enrolled (PECOS I20100305000313); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 1994
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 3701 Katz Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Boelter, M.D.Family Medicine Physician1629015177
- Carrie Brown-Benn, ARNPFamily Nurse Practitioner1306854781
- Timothy Formanek, PAPhysician Assistant1598718215
- Julie Hoffmann, NPFamily Nurse Practitioner1225004161
- Megan Iannaci, PA-CPhysician Assistant1013430925
- Kim Keiser, ARNPFamily Nurse Practitioner1912425380
Verify Matthew Fox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 31973Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average family medicine physician in 2024
5,625 Medicare Part D claims for 347 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 86 claims were for opioids.
Most prescribed
- Atorvastatin Calcium592 claims
- Omeprazole274 claims
- Levothyroxine Sodium260 claims
- Rosuvastatin Calcium254 claims
- Amlodipine Besylate243 claims
- Metformin Hcl Er167 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.
Industry payments in 2024: $935.54
52 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mercy Physician Associates IncHiawatha, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Fox among 2,336 family medicine physician records in Iowa
Matthew Fox, MD 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1994 · median 2006 among the 1,367 with a school on file
- Record last updated2007 · 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).
17 family medicine physician records list a practice address in Marion
They are 17 of the 260 NPPES records with a practice address in Marion, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Marion → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nancy Boelter, M.D.Marion, IA 523021629015177
- Fred Goldblatt, D.O.Marion, IA 523021427046614
- Richard Hodge, MDMarion, IA 523021801874615
- David Kresnicka, M.D.Marion, IA 523021982685111
- Deepti Kurra, MDMarion, IA 523021255561023
- James McCabe, M.D.Marion, IA 523021043386931
- Ann Metzger, MDMarion, IA 523021437137668
- Timothy Quinn, MDMarion, IA 523021548220668
Common questions
What is Matthew Fox, MD's NPI number?
Matthew Fox, MD's National Provider Identifier (NPI) is 1780644849, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Fox, MD located?
The NPPES record lists a practice address at 3701 Katz Dr, Marion, IA, 52302. Phone: (319) 377-2552. Providers update this record themselves, so call before visiting.
How can I verify Matthew Fox, MD's license?
NPPES lists Iowa license number 31973, 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 Matthew Fox, MD prescribe under Medicare Part D?
In 2024, Matthew Fox, MD had 5,625 Medicare Part D claims for 347 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.