Margaret Ann Berdelman, MD
Anesthesiology Physician · Oshkosh, WI
Margaret Ann Berdelman, MD is an anesthesiology physician with a practice address in Oshkosh, Wisconsin, and NPI 1720097355, issued on Aug 5, 2006. Check the license (Wisconsin 48449, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Margaret Ann Berdelman
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 48449 WI
4301078034 MI
Self-reported in NPPES; status is on the state search - Practice location
- 855 N Westhaven Dr, Oshkosh, WI 54904
- Phone
- (920) 303-8700
- Enumerated
- Aug 5, 2006
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (920) 233-7299
- Medicare enrollment
- Enrolled (PECOS I20050920000128); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,313 in Wisconsin → Look up another NPI →
Also registered at 855 N Westhaven Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Ann Berdelman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 48449Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Ann Berdelman among 1,313 anesthesiology physician records in Wisconsin
Margaret Ann Berdelman, MD is one of 1,313 anesthesiology physician records with a practice address in Wisconsin. 72% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 49% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2006 among the 872 with a school on file
- Record last updated2021 · 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 207L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Wisconsin
There are 1,313 anesthesiology physician records in Wisconsin.
All 1,313 in Wisconsin → Every provider in Oshkosh → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Jared BurtonOshkosh, WI 549041700057395
- Pawel Galazka, MDOshkosh, WI 549041992751531
- Pedro Guevara, MDOshkosh, WI 549041679523328
- Joseph Hardage, M.D.Oshkosh, WI 549041063456614
- John Leschke, MDOshkosh, WI 549041083653125
- Joseph Leschke, DOOshkosh, WI 549041316332125
- Donald McDonald, MDOshkosh, WI 549041326087446
- Caroline McDonald, MDOshkosh, WI 549041316054885
Common questions
What is Margaret Ann Berdelman, MD's NPI number?
Margaret Ann Berdelman, MD's National Provider Identifier (NPI) is 1720097355, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Ann Berdelman, MD located?
The NPPES record lists a practice address at 855 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 303-8700. Providers update this record themselves, so call before visiting.
How can I verify Margaret Ann Berdelman, MD's license?
NPPES lists Wisconsin license number 48449, 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.
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.