Brian Gerald Lewis, MD
Medical Toxicology (Emergency Medicine) Physician · Grand Rapids, MI
Brian Gerald Lewis, MD is a medical toxicology (emergency medicine) physician with a practice address in Grand Rapids, Michigan, and NPI 1356836316, issued on Jun 22, 2018. Check the license (Michigan 4301502794, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Brian Gerald Lewis
- Credential
- MD
- Primary taxonomy
- Medical Toxicology (Emergency Medicine) Physician 207PT0002X
- License numbers
- 4301502794 MI
4301115600 MI
Self-reported in NPPES; status is on the state search - Practice location
- 100 Michigan St NE, Grand Rapids, MI 49503
- Phone
- (616) 391-1730
- Enumerated
- Jun 22, 2018
- Record last updated
- Mar 28, 2024
- Medicare enrollment
- Enrolled (PECOS I20201116000084); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2018
- Entity
- Type 1 · individual
Also registered at 100 Michigan St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brian Gerald Lewis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301502794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average medical toxicology (emergency medicine) physician in 2024
182 Medicare Part D claims for 137 beneficiaries, against an average of 138 among the 103 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Cefuroxime33 claims
- Oxycodone Hcl16 claims
- Prednisone14 claims
- Ondansetron Odt13 claims
- Cephalexin11 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): 96.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Ecs Western Michigan PCGrand Rapids, MI
- Visionary Medical Services, PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Medical Toxicology (Emergency Medicine) Physician providers in Michigan
There are 7 medical toxicology (emergency medicine) physician records in Michigan.
Other medical toxicology (emergency medicine) physician records in Michigan
- Cynthia Aaron, M.D.Detroit, MI1922056829
- Lydia Baltarowich, M.D.Detroit, MI1932273547
- Bernard Eisenga, M.D.Grand Rapids, MI1407820590
- Bryan Judge, MDGrand Rapids, MI1255348173
- Daniel Overbeek, M.D.Grand Rapids, MI1336529585
- Bradley Riley, MDGrand Rapids, MI1912988023
Common questions
What is Brian Gerald Lewis, MD's NPI number?
Brian Gerald Lewis, MD's National Provider Identifier (NPI) is 1356836316, issued on Jun 22, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Brian Gerald Lewis, MD located?
The NPPES record lists a practice address at 100 Michigan St NE, Grand Rapids, MI, 49503. Phone: (616) 391-1730. Providers update this record themselves, so call before visiting.
How can I verify Brian Gerald Lewis, MD's license?
NPPES lists Michigan license number 4301502794, 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 Brian Gerald Lewis, MD prescribe under Medicare Part D?
In 2024, Brian Gerald Lewis, MD had 182 Medicare Part D claims for 137 beneficiaries; the average among medical toxicology (emergency medicine) physician prescribers was 138. Part D covers Medicare prescriptions only.
What is Brian Gerald Lewis, MD's MIPS final score?
The 2023 MIPS final score is 96.3 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.