NPPES file of Aug 9, 2026

Michael Nasr Mankarious, M.D.

Internal Medicine Physician · Clinton, IA

Michael Nasr Mankarious, M.D. is an internal medicine physician with a practice address in Clinton, Iowa, and NPI 1659375921, issued on Jun 2, 2005. Check the license (Iowa 28726, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659375921
Name
Michael Nasr Mankarious
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
28726 IA
Self-reported in NPPES; status is on the state search
Practice location
638 S Bluff Blvd, Clinton, IA 52732
Phone
(563) 243-5601
Enumerated
Jun 2, 2005
Record last updated
Mar 29, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(563) 243-5637
Medicaid ID
2089383 IA
Medicare enrollment
Enrolled (PECOS I20100609000280); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 638 S Bluff Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nancy BrownRegistered Nurse1023563228
  2. Sean Debourcy, LISWSocial Worker1972632768
  3. Jenna Dias, LMSWSocial Worker1760888572
  4. Carlene Erikson, LISWSocial Worker1548362346
  5. Pat Everly, LISWClinical Social Worker1508812439
  6. Larry Flesburg, LMSWClinical Social Worker1861438798

Verify Michael Nasr Mankarious in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 28726
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.4 times the Medicare Part D claims of the average internal medicine physician in 2024

14,027 Medicare Part D claims for 386 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 497 claims were for opioids.

  1. Michael Mankarious14,027
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium739 claims
  2. Amlodipine Besylate664 claims
  3. Gabapentin526 claims
  4. Furosemide525 claims
  5. Levothyroxine Sodium476 claims
  6. Omeprazole452 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $537.56

27 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Mankarious$537.56
  2. Specialty average$1,303.06

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

  1. Mercy Specialty ClinicClinton, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Nasr Mankarious among 871 internal medicine physician records in Iowa

Michael Nasr Mankarious, M.D. is one of 871 internal medicine physician records with a practice address in Iowa. 70% 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, 89% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1979 · median 2008 among the 386 with a school on file
  • Record last updated2017 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 internal medicine physician records list a practice address in Clinton

They are 6 of the 507 NPPES records with a practice address in Clinton, and 871 internal medicine physician records in Iowa.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Suheil Barakat, M.D.Clinton, IA 527321013975259
  2. Ahmed Fathala, MDClinton, IA 527321184604696
  3. Erin Herndon, M.D.Clinton, IA 527321942294483
  4. Douglas Jergenson, MDClinton, IA 527321689678344
  5. Sasidhar Somuri, M.DClinton, IA 527321285954206
  6. Anita Ahuja, M.D.Bettendorf, IA 527221568845246
  7. William Jerome, MDBettendorf, IA 527221215915855
  8. James Kettelkamp, MDBettendorf, IA 527221346228970

Common questions

What is Michael Nasr Mankarious, M.D.'s NPI number?

Michael Nasr Mankarious, M.D.'s National Provider Identifier (NPI) is 1659375921, issued on Jun 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Nasr Mankarious, M.D. located?

The NPPES record lists a practice address at 638 S Bluff Blvd, Clinton, IA, 52732. Phone: (563) 243-5601. Providers update this record themselves, so call before visiting.

How can I verify Michael Nasr Mankarious, M.D.'s license?

NPPES lists Iowa license number 28726, 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 Michael Nasr Mankarious, M.D. prescribe under Medicare Part D?

In 2024, Michael Nasr Mankarious, M.D. had 14,027 Medicare Part D claims for 386 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Michael Nasr Mankarious, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.