NPPES file of Aug 9, 2026

James Robert Singer, DO

Retina Specialist (Ophthalmology) Physician · West Des Moines, IA

James Robert Singer, DO is a retina specialist (ophthalmology) physician with a practice address in West Des Moines, Iowa, and NPI 1427369107, issued on Jun 28, 2010. Check the license (Iowa DO-04792, 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
1427369107
Name
James Robert Singer
Credential
DO
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License number
DO-04792 IA
Self-reported in NPPES; status is on the state search
Practice location
1501 50TH St., Ste 133, West Des Moines, IA 50266
Phone
(515) 222-6400
Enumerated
Jun 28, 2010
Record last updated
Apr 11, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(515) 222-6406
Medicare enrollment
Enrolled (PECOS I20160711000737); 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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Verify James Robert Singer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license DO-04792
    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

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7% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

574 Medicare Part D claims for 163 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. James Singer574
  2. Specialty average620

Most prescribed

  1. Prednisolone Acetate153 claims
  2. Dorzolamide-Timolol69 claims
  3. Difluprednate49 claims
  4. Ketorolac Tromethamine42 claims
  5. Tobramycin41 claims
  6. Latanoprost32 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $247.24

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Singer$247.24
  2. Specialty average$7,667.49

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. Iowa Retina Consultants, PCWest Des Moines, IA

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

James Robert Singer among 11 retina specialist (ophthalmology) physician records in Iowa

James Robert Singer, DO is one of 11 retina specialist (ophthalmology) physician records with a practice address in Iowa. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 9% of them.

  • NPI issued2010 · 9% of these records are older, 82% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Record last updated2017 · 27% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in Iowa

There are 11 retina specialist (ophthalmology) physician records in Iowa.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Riley Bylund, MDWest Des Moines, IA 502661336791045
  2. Cory Christensen, DO, MPHWest Des Moines, IA 502661952044877
  3. Christopher Haupert, MDWest Des Moines, IA 502661780652800
  4. Austin Strohbehn, MDWest Des Moines, IA 502661629482468
  5. Sushant Wagley, MDWest Des Moines, IA 502661225481351
  6. David Massop, MDDes Moines, IA 503091003267956
  7. Mohammad Sabbagh, MDSioux City, IA 511061386201549
  8. Beau Fenner, MDIowa City, IA 522421861124943

Common questions

What is James Robert Singer, DO's NPI number?

James Robert Singer, DO's National Provider Identifier (NPI) is 1427369107, issued on Jun 28, 2010. An NPI identifies a provider in billing; it is not a license.

Where is James Robert Singer, DO located?

The NPPES record lists a practice address at 1501 50TH St., Ste 133, West Des Moines, IA, 50266. Phone: (515) 222-6400. Providers update this record themselves, so call before visiting.

How can I verify James Robert Singer, DO's license?

NPPES lists Iowa license number DO-04792, 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 James Robert Singer, DO prescribe under Medicare Part D?

In 2024, James Robert Singer, DO had 574 Medicare Part D claims for 163 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.

What is James Robert Singer, DO's MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.