Robert Warren Rosenbaum, MD
Internal Medicine Physician · East Lansing, MI
Robert Warren Rosenbaum, MD is an internal medicine physician with a practice address in East Lansing, Michigan, and NPI 1235317553, issued on Feb 8, 2008. Check the license (Michigan 4301039577, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Robert Warren Rosenbaum
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301039577 MI
Self-reported in NPPES; status is on the state search - Practice location
- 6196 E Golfridge Dr, East Lansing, MI 48823
- Phone
- (517) 203-0736
- Enumerated
- Feb 8, 2008
- Record last updated
- Feb 8, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (517) 203-0736
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Verify Robert Warren Rosenbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301039577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Robert Warren Rosenbaum among 5,735 internal medicine physician records in Michigan
Robert Warren Rosenbaum, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 48% of them.
- NPI issued2008 · 48% of these records are older, 49% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2008 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 internal medicine physician records list a practice address in East Lansing
They are 49 of the 2,305 NPPES records with a practice address in East Lansing, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in East Lansing → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mehdi Almasi, MDEast Lansing, MI 488231760677819
- Reynard Bouknight, M.D.East Lansing, MI 488231962444307
- Darrell BradyEast Lansing, MI 488231285829341
- Laura Freilich, MDEast Lansing, MI 488231912189895
- Manuel Garcia, MDEast Lansing, MI 488231154379527
- Josephine Gardiner, MDEast Lansing, MI 488231073522512
- Churlsun Han, MDEast Lansing, MI 488231326160888
- Eddie Jenkins, MDEast Lansing, MI 488231316132194
Common questions
What is Robert Warren Rosenbaum, MD's NPI number?
Robert Warren Rosenbaum, MD's National Provider Identifier (NPI) is 1235317553, issued on Feb 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Robert Warren Rosenbaum, MD located?
The NPPES record lists a practice address at 6196 E Golfridge Dr, East Lansing, MI, 48823. Phone: (517) 203-0736. Providers update this record themselves, so call before visiting.
How can I verify Robert Warren Rosenbaum, MD's license?
NPPES lists Michigan license number 4301039577, 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 Robert Warren Rosenbaum, MD prescribe under Medicare Part D?
In 2024, Robert Warren Rosenbaum, MD had 11 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.