Mary Kathleen Bister, M.D.
Family Medicine Physician · Hartford, WI
Mary Kathleen Bister, M.D. is a family medicine physician with a practice address in Hartford, Wisconsin, and NPI 1144546086, issued on Apr 16, 2010. Check the license (Wisconsin 86675, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mary Kathleen Bister
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 86675 WI
35.123233 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1640 E Sumner St, Hartford, WI 53027
- Phone
- (262) 670-4000
- Enumerated
- Apr 16, 2010
- Record last updated
- Jul 9, 2026
- Fax
- (262) 640-4451
- Medicaid ID
- 100412525 WI
- Medicare enrollment
- Enrolled (PECOS I20260417001819); may accept Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 1640 E Sumner St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kimberly Beimel, PTAPhysical Therapy Assistant1417102989
- James Bencivenga, MDOccupational Medicine Physician1659304434
- Jill Bley Klink, LPCProfessional Counselor1891832283
- Brianna Bobber, DOPediatrics Physician1235792664
- Britta Braden, PAPhysician Assistant1083650709
- Nicholas Brahm, DOFamily Medicine Physician1245414861
Verify Mary Kathleen Bister in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 86675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
204 Medicare Part D claims for 151 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Cephalexin33 claims
- Prednisone18 claims
- Oxycodone-Acetaminophen16 claims
- Doxycycline Hyclate14 claims
- Azithromycin11 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: $20.00
1 payment: education; the largest payer was Csl Behring. The 55,478 providers of this specialty with any payment received $902.55 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.
Mary Kathleen Bister among 3,765 family medicine physician records in Wisconsin
Mary Kathleen Bister, M.D. is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 65% of them.
- NPI issued2010 · 65% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2007 among the 2,347 with a school on file
- Record last updated2026 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 family medicine physician records list a practice address in Hartford
They are 22 of the 269 NPPES records with a practice address in Hartford, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Hartford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Carter Aune, M.D.Hartford, WI 530271174580724
- Mark Bradley, D.O.Hartford, WI 530271427016575
- Nicholas Brahm, DOHartford, WI 530271245414861
- Paul Bullis, MDHartford, WI 530271184633869
- James Davis, D.O.Hartford, WI 530271497713515
- Suzanne Gehl, MDHartford, WI 530271417908948
- Bruce Hickman, MDHartford, WI 530271083721609
- Amber Hildebrandt, M.D.Hartford, WI 530271003889643
Common questions
What is Mary Kathleen Bister, M.D.'s NPI number?
Mary Kathleen Bister, M.D.'s National Provider Identifier (NPI) is 1144546086, issued on Apr 16, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathleen Bister, M.D. located?
The NPPES record lists a practice address at 1640 E Sumner St, Hartford, WI, 53027. Phone: (262) 670-4000. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathleen Bister, M.D.'s license?
NPPES lists Wisconsin license number 86675, 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 Mary Kathleen Bister, M.D. prescribe under Medicare Part D?
In 2024, Mary Kathleen Bister, M.D. had 204 Medicare Part D claims for 151 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.