Mark P. Iltis, MD
Family Medicine Physician · Durant, IA
Mark P. Iltis, MD is a family medicine physician with a practice address in Durant, Iowa, and NPI 1659369353, issued on Oct 7, 2005. Check the license (Iowa 27823, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark P. Iltis
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 27823 IA
Self-reported in NPPES; status is on the state search - Practice location
- 619 5TH Street, Durant, IA 52747
- Phone
- (563) 785-4487
- Enumerated
- Oct 7, 2005
- Record last updated
- May 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (563) 785-6681
- Medicare enrollment
- Enrolled (PECOS I20051008000244); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 619 5TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Hansen, PA-CPhysician Assistant1689670747
Verify Mark P. Iltis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 27823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average family medicine physician in 2024
4,498 Medicare Part D claims for 680 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. 89 claims were for opioids.
Most prescribed
- Atorvastatin Calcium306 claims
- Amlodipine Besylate199 claims
- Metformin Hcl189 claims
- Omeprazole168 claims
- Lisinopril167 claims
- Simvastatin162 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: $14.00
1 payment: food and beverage; the largest payer was Novo Nordisk 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
- Genesis Health SystemDavenport, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark P. Iltis among 2,336 family medicine physician records in Iowa
Mark P. Iltis, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1989 · median 2006 among the 1,367 with a school on file
- Record last updated2021 · 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).
3 family medicine physician records list a practice address in Durant
They are 3 of the 17 NPPES records with a practice address in Durant, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Durant → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jennifer Aanestad, M.D.Durant, IA 527471386649341
- Emily Johnson, DODurant, IA 527471578187514
- Carla Cloos, M.D.Eldridge, IA 527481649439175
- Regan Cone, D.O.Eldridge, IA 527481538509443
- James Darrow, MDEldridge, IA 527481023013042
- Patricia McCaw, MDEldridge, IA 527481801892351
- Matthew Neil, MDEldridge, IA 527481578569091
- Bethany OberfoellEldridge, IA 527481619538634
Common questions
What is Mark P. Iltis, MD's NPI number?
Mark P. Iltis, MD's National Provider Identifier (NPI) is 1659369353, issued on Oct 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark P. Iltis, MD located?
The NPPES record lists a practice address at 619 5TH Street, Durant, IA, 52747. Phone: (563) 785-4487. Providers update this record themselves, so call before visiting.
How can I verify Mark P. Iltis, MD's license?
NPPES lists Iowa license number 27823, 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 Mark P. Iltis, MD prescribe under Medicare Part D?
In 2024, Mark P. Iltis, MD had 4,498 Medicare Part D claims for 680 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.