Registry data as of Aug 27, 2026

Joseph Benjamin, DO

Family Medicine Physician · Waterloo, IA

Joseph Benjamin, DO is a family medicine physician with a practice address in Waterloo, Iowa, and NPI 1578639779, issued on Nov 28, 2006. Check the license on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1578639779
Name
Joseph Benjamin
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
2710 Saint Francis Dr, Waterloo, IA 50702
Phone
(319) 272-5000
Enumerated
Nov 28, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2710 Saint Francis Dr

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

  1. Victor Abrich, M.D.Internal Medicine Physician1336428697
  2. Sadia Ali, M.D.Infectious Disease Physician1164632766
  3. Luis Avila, MDAnesthesiology Physician1053367169
  4. Mark Barnard, M.D.Plastic Surgery Physician1578549119
  5. Jon Beyer, BS PHARM, R. PH.Pharmacist1801005574
  6. Mark Bickley, D.O.Family Medicine Physician1912948126

Verify Joseph Benjamin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of MedicineCheck 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.

84% fewer Medicare Part D claims than the average family medicine physician in 2024

556 Medicare Part D claims for 408 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 14 claims were for opioids.

  1. Joseph Benjamin556
  2. Specialty average3,519

Most prescribed

  1. Amoxicillin-Clavulanate Potass47 claims
  2. Prednisone45 claims
  3. Cefuroxime36 claims
  4. Doxycycline Hyclate30 claims
  5. Azithromycin27 claims
  6. Nitrofurantoin Mono-Macro24 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.

One hospital or facility affiliation

  1. Duke University Affiliated Physicians, Inc.Cary, NC

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

91 family medicine physician records list a Waterloo practice address

They are 91 of the 1,512 NPPES records with a Waterloo practice address, and 2,300 family medicine physician records in Iowa.

Other family medicine physician records in Iowa

  1. Jennifer Aanestad, M.D.Durant, IA1386649341
  2. Amjad Abdelhady, MDSioux City, IA1033966700
  3. Afsana Abdullah, D.O.Bettendorf, IA1760583066
  4. Raja Ali Abdullah, MDCedar Falls, IA1356101000
  5. Laura Abels, DOAnkeny, IA1427313527
  6. Matthew AbendrothDes Moines, IA1972918894
  7. Mabra Abernathy, M.D.Coralville, IA1316922545
  8. Jennifer Abler, D.O.Altoona, IA1528159068
  9. Michael Abouassaly, M.D.West Burlington, IA1184790909
  10. Nesrin Abu Ata, M.D.Sioux City, IA1528297660

Common questions

What is Joseph Benjamin, DO's NPI number?

Joseph Benjamin, DO's National Provider Identifier (NPI) is 1578639779, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Benjamin, DO located?

The NPPES record lists a practice address at 2710 Saint Francis Dr, Waterloo, IA, 50702. Phone: (319) 272-5000. Providers update this record themselves, so call before visiting.

How can I verify Joseph Benjamin, DO's license?

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 Joseph Benjamin, DO prescribe under Medicare Part D?

In 2024, Joseph Benjamin, DO had 556 Medicare Part D claims for 408 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.