NPPES file of Aug 9, 2026

Lisa A. Sienkiewicz, M.D.

Orthopaedic Surgery Physician · West Allis, WI

Lisa A. Sienkiewicz, M.D. is an orthopaedic surgery physician with a practice address in West Allis, Wisconsin, and NPI 1942566906, issued on Apr 4, 2012. Check the license (Wisconsin 61294, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942566906
Name
Lisa A. Sienkiewicz
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
61294 WI
Self-reported in NPPES; status is on the state search
Practice location
2424 S 90TH St Ste 500, West Allis, WI 53227
Phone
(414) 321-2255
Enumerated
Apr 4, 2012
Record last updated
Aug 5, 2024
Medicaid ID
100034329 WI
Medicare enrollment
Enrolled (PECOS I20180818000007); accepts Medicare assignment
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 2424 S 90TH St Ste 500

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

  1. Christine Stueland, CCC-SLPSpeech-Language Pathologist1306518717
  2. Marc-Antoine Tremblay, M.D.Orthopaedic Surgery Physician1558892232
  3. Andrew Wieting, DPTPhysical Therapist1740800606

Verify Lisa A. Sienkiewicz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 61294
    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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29% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

244 Medicare Part D claims for 134 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 54 claims were for opioids.

  1. Lisa Sienkiewicz244
  2. Specialty average346

Most prescribed

  1. Amoxicillin57 claims
  2. Hydrocodone-Acetaminophen39 claims
  3. Celecoxib28 claims
  4. Cyclobenzaprine Hcl17 claims
  5. Meloxicam15 claims
  6. Diclofenac Sodium14 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.

Industry payments in 2024: $15.98

1 payment: food and beverage; the largest payer was DePuy Synthes Sales Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lisa Sienkiewicz$16
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Advantage Physical Therapy And Sports Rehab, LLCBurlington, WI
  2. Aurora Advanced Healthcare, Inc.West Allis, WI
  3. Aurora Medical Group, Inc.Greenfield, WI

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

Lisa A. Sienkiewicz among 656 orthopaedic surgery physician records in Wisconsin

Lisa A. Sienkiewicz, M.D. is one of 656 orthopaedic surgery 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 2012, is newer than 75% of them.

  • NPI issued2012 · 75% of these records are older, 21% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2012 · median 2006 among the 401 with a school on file
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Wisconsin

There are 656 orthopaedic surgery physician records in Wisconsin.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Steven Anderson, M.D.West Allis, WI 532271285648691
  2. Alvin Krug, M.D.West Allis, WI 532271780698159
  3. Jeffrey Larson, MDWest Allis, WI 532271124018809
  4. Justin Peterson, D.O.West Allis, WI 532271033558010
  5. Michael Stoesz, MDWest Allis, WI 532271689833774
  6. Marc-Antoine Tremblay, M.D.West Allis, WI 532271558892232
  7. Lee Tyne, MDWest Allis, WI 532271922098714
  8. Jake Bauwens, M.DWauwatosa, WI 532261639564586

Common questions

What is Lisa A. Sienkiewicz, M.D.'s NPI number?

Lisa A. Sienkiewicz, M.D.'s National Provider Identifier (NPI) is 1942566906, issued on Apr 4, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Lisa A. Sienkiewicz, M.D. located?

The NPPES record lists a practice address at 2424 S 90TH St Ste 500, West Allis, WI, 53227. Phone: (414) 321-2255. Providers update this record themselves, so call before visiting.

How can I verify Lisa A. Sienkiewicz, M.D.'s license?

NPPES lists Wisconsin license number 61294, 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 Lisa A. Sienkiewicz, M.D. prescribe under Medicare Part D?

In 2024, Lisa A. Sienkiewicz, M.D. had 244 Medicare Part D claims for 134 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.