James Kleist, M.D.
Hospitalist Physician · Green Bay, WI
James Kleist, M.D. is a hospitalist physician with a practice address in Green Bay, Wisconsin, and NPI 1982139986, issued on Apr 27, 2017. Check the license (Wisconsin 73879, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- James Kleist
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 73879 WI
73839 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2845 Greenbrier RD, Green Bay, WI 54311
- Phone
- (920) 288-8000
- Enumerated
- Apr 27, 2017
- Record last updated
- Mar 24, 2025
- Medicaid ID
- 100085379 WI
- Medicare enrollment
- Enrolled (PECOS I20220316003932); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2017
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 2845 Greenbrier RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jade Abts, NPNurse Practitioner1992293708
- Ian AdamsonCertified Registered Nurse Anesthetist1184981532
- Kerry Ahrens, M.D.Emergency Medicine Physician1639497621
- Andrea Akpoguma, M.D.Hospitalist Physician1508091117
- Kirsten Akpoguma, CRNACertified Registered Nurse Anesthetist1417601725
- Valerie Albers, A.P.N.P.Nurse Practitioner1396015830
Verify James Kleist in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 73879Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average hospitalist physician in 2024
500 Medicare Part D claims for 148 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Metoprolol Succinate30 claims
- Eliquis22 claims
- Amlodipine Besylate20 claims
- Famotidine18 claims
- Pantoprazole Sodium16 claims
- Furosemide15 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.
Bills Medicare through one group practice
- Baycare Aurora LLCGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Kleist among 894 hospitalist physician records in Wisconsin
James Kleist, M.D. is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 63% of them.
- NPI issued2017 · 63% of these records are older, 32% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2017 · median 2011 among the 768 with a school on file
- Record last updated2025 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
53 hospitalist physician records list a practice address in Green Bay
They are 53 of the 4,619 NPPES records with a practice address in Green Bay, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Green Bay → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Andrea Akpoguma, M.D.Green Bay, WI 543111508091117
- William Ansa Otu, M.DGreen Bay, WI 543111346564168
- Dovile Baniulis, M.D.Green Bay, WI 543111609118033
- Claire Berken, M.DGreen Bay, WI 543111801112982
- Ravi Chander, M.D.Green Bay, WI 543111902216492
- Bradley Fedderly, MDGreen Bay, WI 543111013926682
- Brian Johnson, MDGreen Bay, WI 543111851408371
- Arnel Magno, MDGreen Bay, WI 543111457580250
Common questions
What is James Kleist, M.D.'s NPI number?
James Kleist, M.D.'s National Provider Identifier (NPI) is 1982139986, issued on Apr 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is James Kleist, M.D. located?
The NPPES record lists a practice address at 2845 Greenbrier RD, Green Bay, WI, 54311. Phone: (920) 288-8000. Providers update this record themselves, so call before visiting.
How can I verify James Kleist, M.D.'s license?
NPPES lists Wisconsin license number 73879, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Kleist, M.D. prescribe under Medicare Part D?
In 2024, James Kleist, M.D. had 500 Medicare Part D claims for 148 beneficiaries; the average among hospitalist physician prescribers was 521. 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.