Micah Larsen, MD
Emergency Medicine Physician · Grand Rapids, MI
Micah Larsen, MD is an emergency medicine physician with a practice address in Grand Rapids, Michigan, and NPI 1508495615, issued on Apr 2, 2020. Check the license (Michigan 1508495615, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Micah Larsen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 1508495615 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE # MC49, Grand Rapids, MI 49503
- Phone
- (616) 391-1680
- Enumerated
- Apr 2, 2020
- Record last updated
- Nov 22, 2022
- Medicare enrollment
- Enrolled (PECOS I20230801001238); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 100 Michigan St NE # MC49
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Micah Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 1508495615Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average emergency medicine physician in 2024
568 Medicare Part D claims for 378 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 126 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen101 claims
- Cefuroxime78 claims
- Ondansetron Odt43 claims
- Cyclobenzaprine Hcl22 claims
- Ibuprofen22 claims
- Oxycodone-Acetaminophen22 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.
Industry payments in 2024: $187.10
1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Mercy Clinic Oklahoma CommunitiesAda, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Micah Larsen among 3,083 emergency medicine physician records in Michigan
Micah Larsen, MD is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 77% of them.
- NPI issued2020 · 77% of these records are older, 18% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2013 among the 1,931 with a school on file
- Record last updated2022 · 53% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 emergency medicine physician records list a practice address in Grand Rapids
They are 192 of the 18,005 NPPES records with a practice address in Grand Rapids, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Grand Rapids → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Adam Anderson, MDGrand Rapids, MI 495031003805268
- Kristi Artz, MDGrand Rapids, MI 495031558301820
- Kathleen Blazek, MDGrand Rapids, MI 495031083672729
- Christopher Cahill, DOGrand Rapids, MI 495031265480263
- Jennifer Ekkens, DOGrand Rapids, MI 495031275591414
- Mark Figurski, MDGrand Rapids, MI 495031972598340
- Donald Findlay, DOGrand Rapids, MI 495031114912581
- Eric Kaminskas, MDGrand Rapids, MI 495031598704405
Common questions
What is Micah Larsen, MD's NPI number?
Micah Larsen, MD's National Provider Identifier (NPI) is 1508495615, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Micah Larsen, MD located?
The NPPES record lists a practice address at 100 Michigan St NE # MC49, Grand Rapids, MI, 49503. Phone: (616) 391-1680. Providers update this record themselves, so call before visiting.
How can I verify Micah Larsen, MD's license?
NPPES lists Michigan license number 1508495615, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Micah Larsen, MD prescribe under Medicare Part D?
In 2024, Micah Larsen, MD had 568 Medicare Part D claims for 378 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.