Larisa I. Mazur, MD
Family Medicine Physician · Thiensville, WI
Larisa I. Mazur, MD is a family medicine physician with a practice address in Thiensville, Wisconsin, and NPI 1861565202, issued on Nov 15, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Larisa I. Mazur
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A91296 CA
Self-reported in NPPES; status is on the state search - Practice location
- 216 Elm St, Thiensville, WI 53092
- Phone
- (262) 238-9576
- Enumerated
- Nov 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Verify Larisa I. Mazur in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
37 Medicare Part D claims, against an average of 3,544 among the 117,163 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.
Larisa I. Mazur among 3,765 family medicine physician records in Wisconsin
Larisa I. Mazur, MD 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 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).
3 family medicine physician records list a practice address in Thiensville
They are 3 of the 54 NPPES records with a practice address in Thiensville, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Thiensville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nicola Charlton, M.D.Mequon, WI 530921326050436
- Robert Frank, MDMequon, WI 530921659303899
- Michael Gerard, MDMequon, WI 530921598742652
- Richard Lewis, M.D.Mequon, WI 530921306819305
- Gary Lewis, MDThiensville, WI 530921194762765
- Paul Mankus, MDMequon, WI 530921639131998
- Anne Mattson, MDMequon, WI 530921598799496
- Jennifer Micke-Kopetsky, M.D.Mequon, WI 530921871527341
Common questions
What is Larisa I. Mazur, MD's NPI number?
Larisa I. Mazur, MD's National Provider Identifier (NPI) is 1861565202, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Larisa I. Mazur, MD located?
The NPPES record lists a practice address at 216 Elm St, Thiensville, WI, 53092. Phone: (262) 238-9576. Providers update this record themselves, so call before visiting.
How can I verify Larisa I. Mazur, MD's license?
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 Larisa I. Mazur, MD prescribe under Medicare Part D?
In 2024, Larisa I. Mazur, MD had 37 Medicare Part D claims; 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.