Christopher Osterbauer, DO
Internal Medicine Physician · Kalamazoo, MI
Christopher Osterbauer, DO is an internal medicine physician with a practice address in Kalamazoo, Michigan, and NPI 1427543578, issued on Jun 29, 2018. Check the license (Michigan 5101026205, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Christopher Osterbauer
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 5101026205 MI
5101023982 MI
81001 WI
Self-reported in NPPES; status is on the state search - Practice location
- 601 John St, Kalamazoo, MI 49007
- Phone
- (269) 341-8481
- Enumerated
- Jun 29, 2018
- Record last updated
- Aug 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20220824000510); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 601 John St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fadi Ajine, MDRheumatology Physician1275533986
- Hussein Akl, MDInternal Medicine Physician1699757849
- Kwsai Al-Rahhal, MDSleep Medicine (Internal Medicine) Physician1639159247
Verify Christopher Osterbauer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101026205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
283 Medicare Part D claims for 86 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone27 claims
- Eliquis25 claims
- Pantoprazole Sodium16 claims
- Midodrine Hcl15 claims
- Warfarin Sodium15 claims
- Cephalexin12 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): 82.4 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 one group practice
- Lakeview Medical Center Inc OF Rice LakeRice Lake, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Osterbauer among 5,735 internal medicine physician records in Michigan
Christopher Osterbauer, DO 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 2018, is newer than 74% of them.
- NPI issued2018 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2006 among the 3,564 with a school on file
- Record last updated2025 · 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).
158 internal medicine physician records list a practice address in Kalamazoo
They are 158 of the 6,553 NPPES records with a practice address in Kalamazoo, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Kalamazoo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lawrence Abramson, MDKalamazoo, MI 490071467413575
- Hussein Akl, MDKalamazoo, MI 490071699757849
- Todd Bennett, DOKalamazoo, MI 490071548233562
- Owen Berow, MDKalamazoo, MI 490071275526600
- James Carter, MDKalamazoo, MI 490071952371411
- Kathryn Grossman, MDKalamazoo, MI 490071780658146
- Eve Inchardi, MDKalamazoo, MI 490071881664324
- Paula Lunde, MDKalamazoo, MI 490071659341121
Common questions
What is Christopher Osterbauer, DO's NPI number?
Christopher Osterbauer, DO's National Provider Identifier (NPI) is 1427543578, issued on Jun 29, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Osterbauer, DO located?
The NPPES record lists a practice address at 601 John St, Kalamazoo, MI, 49007. Phone: (269) 341-8481. Providers update this record themselves, so call before visiting.
How can I verify Christopher Osterbauer, DO's license?
NPPES lists Michigan license number 5101026205, 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 Christopher Osterbauer, DO prescribe under Medicare Part D?
In 2024, Christopher Osterbauer, DO had 283 Medicare Part D claims for 86 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christopher Osterbauer, DO's MIPS final score?
The 2023 MIPS final score is 82.4 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.