Gregory Matthew Peterson, M.D.
Emergency Medicine Physician · Waconia, MN
Gregory Matthew Peterson, M.D. is an emergency medicine physician with a practice address in Waconia, Minnesota, and NPI 1245467141, issued on Jun 18, 2009. Check the license (Minnesota 55134, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Gregory Matthew Peterson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 55134 MN
Self-reported in NPPES; status is on the state search - Practice location
- 500 S Maple St, Waconia, MN 55387
- Phone
- (952) 442-2191
- Enumerated
- Jun 18, 2009
- Record last updated
- Aug 8, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120809000760); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2009
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,348 in Minnesota → Look up another NPI →
Also registered at 500 S Maple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cortland Arlien, CRNACertified Registered Nurse Anesthetist1336212430
- Jessica Baitani, MDInternal Medicine Physician1285800466
- Erin Bischoff, PACPhysician Assistant1366642563
- Jule Block, MDAnesthesiology Physician1104809045
- Cynthia Brick, CRNACertified Registered Nurse Anesthetist1043381114
Verify Gregory Matthew Peterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 55134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average emergency medicine physician in 2024
166 Medicare Part D claims for 122 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Prednisone15 claims
- Cephalexin13 claims
- Tizanidine Hcl12 claims
- Amoxicillin-Clavulanate Potass11 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 affiliation
- Ridgeview Medical CenterWaconia, MN · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gregory Matthew Peterson among 1,348 emergency medicine physician records in Minnesota
Gregory Matthew Peterson, M.D. is one of 1,348 emergency medicine physician records with a practice address in Minnesota. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2009 · median 2012 among the 818 with a school on file
- Record last updated2012 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 emergency medicine physician records list a practice address in Waconia
They are 18 of the 598 NPPES records with a practice address in Waconia, and 1,348 emergency medicine physician records in Minnesota.
All 1,348 in Minnesota → Every provider in Waconia → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Laresa Deboer, M.D.Waconia, MN 553871316993231
- Laurie Drill-Mellum, M.D.Waconia, MN 553871942256862
- Sarah Dundee, M.D.Waconia, MN 553871508076365
- Joseph Dundee, M.D.Waconia, MN 553871407053580
- Sara Fish, M.D.Waconia, MN 553871134168867
- Erine Fong, MDWaconia, MN 553871134380553
- Matthew Herold, M.D.Waconia, MN 553871336195262
- Bruce Hubbard, M.D.Waconia, MN 553871043266976
Common questions
What is Gregory Matthew Peterson, M.D.'s NPI number?
Gregory Matthew Peterson, M.D.'s National Provider Identifier (NPI) is 1245467141, issued on Jun 18, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Matthew Peterson, M.D. located?
The NPPES record lists a practice address at 500 S Maple St, Waconia, MN, 55387. Phone: (952) 442-2191. Providers update this record themselves, so call before visiting.
How can I verify Gregory Matthew Peterson, M.D.'s license?
NPPES lists Minnesota license number 55134, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Matthew Peterson, M.D. prescribe under Medicare Part D?
In 2024, Gregory Matthew Peterson, M.D. had 166 Medicare Part D claims for 122 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.