Robert F. Weis, M.D.
Internal Medicine Physician · Muscatine, IA
Robert F. Weis, M.D. is an internal medicine physician with a practice address in Muscatine, Iowa, and NPI 1205813912, issued on Dec 23, 2005. Check the license (Iowa 22517, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert F. Weis
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 22517 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1518 Mulberry Ave, Muscatine, IA 52761
- Phone
- (563) 262-4111
- Enumerated
- Dec 23, 2005
- Record last updated
- Apr 23, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 2188896 IA
- Medicare enrollment
- Enrolled (PECOS I20100522000006); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1518 Mulberry Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Coleman, M.D.Obstetrics & Gynecology Physician1609880541
- Beth ColonFamily Nurse Practitioner1356724405
Verify Robert F. Weis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 22517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,658 Medicare Part D claims for 246 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 54 claims were for opioids.
Most prescribed
- Atorvastatin Calcium189 claims
- Levothyroxine Sodium88 claims
- Lisinopril72 claims
- Hydrochlorothiazide67 claims
- Metoprolol Succinate56 claims
- Losartan Potassium55 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 one group practice
- Unity HealthcareMuscatine, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert F. Weis among 871 internal medicine physician records in Iowa
Robert F. Weis, 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
- Graduated1977 · median 2008 among the 386 with a school on file
- Record last updated2013 · 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 Muscatine
They are 6 of the 346 NPPES records with a practice address in Muscatine, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Muscatine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ceren Durer, MDMuscatine, IA 527611619520657
- Maitreyi Janarthanan, MDMuscatine, IA 527611982652186
- James Kwirant, M.D.Muscatine, IA 527611518944289
- Manasi Nadkarni, MDMuscatine, IA 527611538171145
- Melinda Smith, M.D.Muscatine, IA 527611649257254
- Suheil Barakat, M.D.Clinton, IA 527321013975259
- Ahmed Fathala, MDClinton, IA 527321184604696
- Erin Herndon, M.D.Clinton, IA 527321942294483
Common questions
What is Robert F. Weis, M.D.'s NPI number?
Robert F. Weis, M.D.'s National Provider Identifier (NPI) is 1205813912, issued on Dec 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert F. Weis, M.D. located?
The NPPES record lists a practice address at 1518 Mulberry Ave, Muscatine, IA, 52761. Phone: (563) 262-4111. Providers update this record themselves, so call before visiting.
How can I verify Robert F. Weis, M.D.'s license?
NPPES lists Iowa license number 22517, 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 Robert F. Weis, M.D. prescribe under Medicare Part D?
In 2024, Robert F. Weis, M.D. had 1,658 Medicare Part D claims for 246 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.