NPPES file of Aug 9, 2026

Michael J. Lasser, MD

Obstetrics & Gynecology Physician · West Allis, WI

Michael J. Lasser, MD is an obstetrics & gynecology physician with a practice address in West Allis, Wisconsin, and NPI 1598716342, issued on May 15, 2006. Check the license (Wisconsin 35601, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598716342
Name
Michael J. Lasser
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
35601 WI
Self-reported in NPPES; status is on the state search
Practice location
11211 W Lincoln Ave, West Allis, WI 53227
Phone
(414) 456-5900
Enumerated
May 15, 2006
Record last updated
Oct 16, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(414) 327-7639
Medicaid IDs
1598716342 WI
32371000 WI
Medicare enrollment
Enrolled (PECOS I20100927001485); may accept Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 1993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11211 W Lincoln Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kathryn Aispuro, RN, CNMAdvanced Practice Midwife1407046196
  2. Jessica Altis, PA-CMedical Physician Assistant1841587029
  3. Erin ClawsonFamily Nurse Practitioner1508494279
  4. Jaymie Gehring, DNP-FNPFamily Nurse Practitioner1356820476
  5. Megan Hintz, FNP-CFamily Nurse Practitioner1740940097
  6. Katrina Joski, PA-CMedical Physician Assistant1336452440

Verify Michael J. Lasser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 35601
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Obhg Wisconsin SCWest Allis, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael J. Lasser among 796 obstetrics & gynecology physician records in Wisconsin

Michael J. Lasser, MD is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 47% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1993 · median 2007 among the 478 with a school on file
  • Record last updated2012 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 obstetrics & gynecology physician records list a practice address in West Allis

They are 32 of the 1,362 NPPES records with a practice address in West Allis, and 796 obstetrics & gynecology physician records in Wisconsin.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Mary Burke, M.D.Milwaukee, WI 532271508848250
  2. Scott Caldwell, MDWest Allis, WI 532271477511905
  3. Karen Dobbs, M.D.West Allis, WI 532271023198074
  4. James Dolan, MDWest Allis, WI 532271639270796
  5. Amarjit Jaglan, M.D.West Allis, WI 532271154401248
  6. Barbara Lamping, M.D.West Allis, WI 532271780659490
  7. Lisa LloydWest Allis, WI 532271134209174
  8. Michael Lund, MDWest Allis, WI 532271659325827

Common questions

What is Michael J. Lasser, MD's NPI number?

Michael J. Lasser, MD's National Provider Identifier (NPI) is 1598716342, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Lasser, MD located?

The NPPES record lists a practice address at 11211 W Lincoln Ave, West Allis, WI, 53227. Phone: (414) 456-5900. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Lasser, MD's license?

NPPES lists Wisconsin license number 35601, 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.