NPPES file of Aug 9, 2026

Robert R. Negrete, OD

Optometrist · Marshalltown, IA

Robert R. Negrete, OD is an optometrist with a practice address in Marshalltown, Iowa, and NPI 1447218003, issued on May 3, 2006. Check the license (Iowa 2015T, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1447218003
Name
Robert R. Negrete
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
2015T IA
Self-reported in NPPES; status is on the state search
Practice location
116 W Main St, Marshalltown, IA 50158
Phone
(641) 753-5042
Enumerated
May 3, 2006
Record last updated
Dec 20, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(641) 753-5292
Medicaid ID
4110973 IA
Medicare enrollment
Enrolled (PECOS I20050511000601); accepts Medicare assignment
Medical or professional school
University Alabama Birmingham - School Of Optometry, 1992
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 116 W Main St

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

  1. George Neff, ODOptometrist1114931680
  2. Julie Schossow, ABOCOptician1568093508

Verify Robert R. Negrete in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 2015T
    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
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69% fewer Medicare Part D claims than the average optometrist in 2024

85 Medicare Part D claims for 26 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Robert Negrete85
  2. Specialty average277

Most prescribed

  1. Latanoprost46 claims
  2. Erythromycin16 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.

Robert R. Negrete among 676 optometrist records in Iowa

Robert R. Negrete, OD is one of 676 optometrist records with a practice address in Iowa. 76% 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 18% of them.

  • NPI issued2006 · 18% of these records are older, 44% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1992 · median 2006 among the 462 with a school on file
  • Record last updated2018 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 optometrist records list a practice address in Marshalltown

They are 13 of the 443 NPPES records with a practice address in Marshalltown, and 676 optometrist records in Iowa.

The 8 optometrist records with the nearest ZIP codes

  1. Kyle Carnahan, ODMarshalltown, IA 501581184395816
  2. Michelle Cazett, ODMarshalltown, IA 501581548205172
  3. Collin Edwards, ODMarshalltown, IA 501581780245472
  4. Connie Feldman, ODMarshalltown, IA 501581245200583
  5. Denise Gimbel, ODMarshalltown, IA 501581740272574
  6. Kari Hellstern, O.D.Marshalltown, IA 501581538542717
  7. Kacie Monroe, O.D.Marshalltown, IA 501581811283799
  8. George Neff, ODMarshalltown, IA 501581114931680

Common questions

What is Robert R. Negrete, OD's NPI number?

Robert R. Negrete, OD's National Provider Identifier (NPI) is 1447218003, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert R. Negrete, OD located?

The NPPES record lists a practice address at 116 W Main St, Marshalltown, IA, 50158. Phone: (641) 753-5042. Providers update this record themselves, so call before visiting.

How can I verify Robert R. Negrete, OD's license?

NPPES lists Iowa license number 2015T, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Robert R. Negrete, OD prescribe under Medicare Part D?

In 2024, Robert R. Negrete, OD had 85 Medicare Part D claims for 26 beneficiaries; the average among optometrist prescribers was 277. 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.