Carter Alan Casmaer, M.D.
Emergency Medicine Physician · Minneapolis, MN
Carter Alan Casmaer, M.D. is an emergency medicine physician with a practice address in Minneapolis, Minnesota, and NPI 1770875387, issued on May 15, 2011. Check the license (Minnesota 57532, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Carter Alan Casmaer
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 57532 MN
Self-reported in NPPES; status is on the state search - Practice location
- 800 E 28TH St, Minneapolis, MN 55407
- Phone
- (612) 863-4233
- Enumerated
- May 15, 2011
- Record last updated
- Jan 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20140610000564); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,348 in Minnesota → Look up another NPI →
Also registered at 800 E 28TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Robyn Achmann, APNP-BCAdult Health Nurse Practitioner1871862219
- Mary Adam, CNSAdult Health Clinical Nurse Specialist1720398746
Verify Carter Alan Casmaer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 57532Check 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 127 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone19 claims
- Ondansetron Odt18 claims
- Cephalexin16 claims
- Sumatriptan Succinate13 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 MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Allina Health SystemPlymouth, MN
- Emergency Care Consultants PASaint Paul, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carter Alan Casmaer among 1,348 emergency medicine physician records in Minnesota
Carter Alan Casmaer, 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 2011, is newer than 57% of them.
- NPI issued2011 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2011 · median 2012 among the 818 with a school on file
- Record last updated2025 · 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).
Emergency Medicine Physician providers in Minnesota
There are 1,348 emergency medicine physician records in Minnesota.
All 1,348 in Minnesota → Every provider in Minneapolis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Nathaniel Bowler, MDMinneapolis, MN 554071417908146
- Brett Germany, MDMinneapolis, MN 554071295796225
- Alyce Hamilton, M.D.Minneapolis, MN 554071487751210
- Thomas Horejsi, MDMinneapolis, MN 554071952345597
- Nicholas Johnson, MDMinneapolis, MN 554071396711446
- Scott Leddy, MDMinneapolis, MN 554071194839266
- Daniel O'Laughlin, M.D.Minneapolis, MN 554071851334825
- Christopher Obetz, MDMinneapolis, MN 554071649245507
Common questions
What is Carter Alan Casmaer, M.D.'s NPI number?
Carter Alan Casmaer, M.D.'s National Provider Identifier (NPI) is 1770875387, issued on May 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Carter Alan Casmaer, M.D. located?
The NPPES record lists a practice address at 800 E 28TH St, Minneapolis, MN, 55407. Phone: (612) 863-4233. Providers update this record themselves, so call before visiting.
How can I verify Carter Alan Casmaer, M.D.'s license?
NPPES lists Minnesota license number 57532, 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 Carter Alan Casmaer, M.D. prescribe under Medicare Part D?
In 2024, Carter Alan Casmaer, M.D. had 166 Medicare Part D claims for 127 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Carter Alan Casmaer, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.