NPPES file of Aug 9, 2026

Gregory E. Peterson, D.O.

Critical Care Medicine (Internal Medicine) Physician · Des Moines, IA

Gregory E. Peterson, D.O. is a critical care medicine (internal medicine) physician with a practice address in Des Moines, Iowa, and NPI 1447255245, issued on Jun 17, 2005. Check the license (Iowa 01984, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447255245
Name
Gregory E. Peterson
Credential
D.O.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
01984 IA
Self-reported in NPPES; status is on the state search
Practice location
1510 Pleasant View Dr, Des Moines, IA 50315
Phone
(515) 771-2527
Enumerated
Jun 17, 2005
Record last updated
Dec 13, 2022
Fax
(855) 642-1942
Medicaid ID
0237933 IA
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.
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Verify Gregory E. Peterson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 01984
    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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87% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

87 Medicare Part D claims, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Gregory Peterson87
  2. Specialty average696

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.

Gregory E. Peterson among 27 critical care medicine (internal medicine) physician records in Iowa

Gregory E. Peterson, D.O. is one of 27 critical care medicine (internal medicine) physician records with a practice address in Iowa. 85% 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, 81% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 78% of these records are
  • Record last updated2022 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Iowa

There are 27 critical care medicine (internal medicine) physician records in Iowa.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Iaswarya Ganapathiraju, DODes Moines, IA 503091275027963
  2. Madyson Hoffman, AGACNP-BC, APRNDes Moines, IA 503091629954276
  3. Steven Berry, MDDes Moines, IA 503251225014228
  4. Tamarisa Narayan, M.D.West Des Moines, IA 502651851396709
  5. Douglas Summerfield, MDMason City, IA 504011518120633
  6. James Wilson, M.D.Fort Dodge, IA 505011114389285
  7. Swaroopa Rani Nalamalapu, MDWaterloo, IA 507031770947517
  8. Aniket Mittal, MDCoralville, IA 522411427554351

Common questions

What is Gregory E. Peterson, D.O.'s NPI number?

Gregory E. Peterson, D.O.'s National Provider Identifier (NPI) is 1447255245, issued on Jun 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory E. Peterson, D.O. located?

The NPPES record lists a practice address at 1510 Pleasant View Dr, Des Moines, IA, 50315. Phone: (515) 771-2527. Providers update this record themselves, so call before visiting.

How can I verify Gregory E. Peterson, D.O.'s license?

NPPES lists Iowa license number 01984, 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 Gregory E. Peterson, D.O. prescribe under Medicare Part D?

In 2024, Gregory E. Peterson, D.O. had 87 Medicare Part D claims; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.