Karen S. Schmahl, MD
Anesthesiology Physician · Milwaukee, WI
Karen S. Schmahl, MD is an anesthesiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1609816677, issued on Jun 7, 2006. Check the license (Wisconsin 18426, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen S. Schmahl
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 18426 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3237 South 16TH Street, Milwaukee, WI 53215
- Phone
- (414) 647-5771
- Enumerated
- Jun 7, 2006
- Record last updated
- Mar 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (414) 547-7134
- Medicaid ID
- 30897100 WI
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,313 in Wisconsin → Look up another NPI →
Also registered at 3237 South 16TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen S. Schmahl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 18426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average anesthesiology physician in 2024
13 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
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.
Karen S. Schmahl among 1,313 anesthesiology physician records in Wisconsin
Karen S. Schmahl, 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 fileNo · 66% of these records are
- Record last updated2008 · 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).
387 anesthesiology physician records list a practice address in Milwaukee
They are 387 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,313 anesthesiology physician records in Wisconsin.
All 1,313 in Wisconsin → Every provider in Milwaukee → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Devin Artley, M.D.Milwaukee, WI 532151831172881
- Vetrivel Balakrishnan, M.D.Milwaukee, WI 532151619950672
- Douglas Bell, M.D.Milwaukee, WI 532151154304129
- George Brodzinski, M.D.Milwaukee, WI 532151952384935
- D Cheng, M.D.Milwaukee, WI 532151326021049
- John Cherukara, MDMilwaukee, WI 532151447240098
- Donald Chrzan, M.D.Milwaukee, WI 532151053394684
- James Ducanto, MDMilwaukee, WI 532151861475790
Common questions
What is Karen S. Schmahl, MD's NPI number?
Karen S. Schmahl, MD's National Provider Identifier (NPI) is 1609816677, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen S. Schmahl, MD located?
The NPPES record lists a practice address at 3237 South 16TH Street, Milwaukee, WI, 53215. Phone: (414) 647-5771. Providers update this record themselves, so call before visiting.
How can I verify Karen S. Schmahl, MD's license?
NPPES lists Wisconsin license number 18426, 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 Karen S. Schmahl, MD prescribe under Medicare Part D?
In 2024, Karen S. Schmahl, MD had 13 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.