Jeffrey Postles, M.D.
Internal Medicine Physician · Brookfield, WI
Jeffrey Postles, M.D. is an internal medicine physician with a practice address in Brookfield, Wisconsin, and NPI 1598870008, issued on Aug 21, 2006. Check the license (Wisconsin 31371, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Postles
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 31371 WI
Self-reported in NPPES; status is on the state search - Practice location
- 13950 W Capitol Dr, Brookfield, WI 53005
- Phone
- (414) 302-5400
- Enumerated
- Aug 21, 2006
- Record last updated
- Sep 3, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (414) 302-5495
- Medicaid ID
- 331781600 WI
- Medicare enrollment
- Enrolled (PECOS I20100118000148); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 13950 W Capitol Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jeffrey Postles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 31371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
154 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium11 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
- Ascension Medical Group-Southeast Wisconsin IncBrookfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Postles among 2,078 internal medicine physician records in Wisconsin
Jeffrey Postles, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1989 · median 2002 among the 1,098 with a school on file
- Record last updated2010 · 55% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 internal medicine physician records list a practice address in Brookfield
They are 39 of the 2,036 NPPES records with a practice address in Brookfield, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Brookfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michelle Agnew, M.D.Brookfield, WI 530051720051550
- Minoudokht Azimi-Zavarei, MDBrookfield, WI 530051649280827
- Stephen Bielke, MDBrookfield, WI 530051528035516
- Russell Blankenburg, MDBrookfield, WI 530051104893577
- Eugene Burke, M.D.Brookfield, WI 530051457323065
- Sunu Eapen, MDBrookfield, WI 530051609819382
- Lawrence Golopol, MDBrookfield, WI 530051568493963
- Mushir Hassan, MDBrookfield, WI 530051043287436
Common questions
What is Jeffrey Postles, M.D.'s NPI number?
Jeffrey Postles, M.D.'s National Provider Identifier (NPI) is 1598870008, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Postles, M.D. located?
The NPPES record lists a practice address at 13950 W Capitol Dr, Brookfield, WI, 53005. Phone: (414) 302-5400. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Postles, M.D.'s license?
NPPES lists Wisconsin license number 31371, 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 Jeffrey Postles, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey Postles, M.D. had 154 Medicare Part D claims for 67 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jeffrey Postles, M.D.'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.