NPPES file of Aug 9, 2026

Kirsten L. O'Quinn, MD

Family Medicine Physician · Germantown, WI

Kirsten L. O'Quinn, MD is a family medicine physician with a practice address in Germantown, Wisconsin, and NPI 1841237781, issued on May 31, 2006. Check the license (Wisconsin 45885, 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
1841237781
Name
Kirsten L. O'Quinn
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
45885 WI
Self-reported in NPPES; status is on the state search
Practice location
W178N9912 Rivercrest Dr Ste 105, Germantown, WI 53022
Phone
(262) 682-8810
Enumerated
May 31, 2006
Record last updated
Aug 29, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(262) 432-7183
Medicaid IDs
34637100 WI
1841237781 WI
Medicare enrollment
Enrolled (PECOS I20050615000112); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2002
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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Verify Kirsten L. O'Quinn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 45885
    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

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74% fewer Medicare Part D claims than the average family medicine physician in 2024

923 Medicare Part D claims for 92 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Kirsten O'Quinn923
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium89 claims
  2. Lisinopril53 claims
  3. Levothyroxine Sodium51 claims
  4. Escitalopram Oxalate30 claims
  5. Mounjaro26 claims
  6. Albuterol Sulfate Hfa24 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: $467.29

30 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kirsten O'Quinn$467.29
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Independent Physicians OF Wisconsin LLCMilwaukee, WI
  2. Partners IN Health Collective SCGermantown, WI

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

Kirsten L. O'Quinn among 3,765 family medicine physician records in Wisconsin

Kirsten L. O'Quinn, 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 fileYes · 62% of these records are
  • Graduated2002 · median 2007 among the 2,347 with a school on file
  • Record last updated2019 · 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).

17 family medicine physician records list a practice address in Germantown

They are 17 of the 329 NPPES records with a practice address in Germantown, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Tarek Amin, D.O.Germantown, WI 530221710322789
  2. Bruce Boyd, MDGermantown, WI 530221629000864
  3. Alvin Cardona, MDGermantown, WI 530221174016935
  4. Latosha Harper, MD, DPT, MPT, ATCGermantown, WI 530221528204153
  5. David Imse, M.D.Germantown, WI 530221376516450
  6. Andrew Knoernschild, M.D.Germantown, WI 530221467425454
  7. Douglas Marx, D.O.Germantown, WI 530221326011321
  8. Adrienne Maurer, MDGermantown, WI 530221073567939

Common questions

What is Kirsten L. O'Quinn, MD's NPI number?

Kirsten L. O'Quinn, MD's National Provider Identifier (NPI) is 1841237781, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kirsten L. O'Quinn, MD located?

The NPPES record lists a practice address at W178N9912 Rivercrest Dr Ste 105, Germantown, WI, 53022. Phone: (262) 682-8810. Providers update this record themselves, so call before visiting.

How can I verify Kirsten L. O'Quinn, MD's license?

NPPES lists Wisconsin license number 45885, 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 Kirsten L. O'Quinn, MD prescribe under Medicare Part D?

In 2024, Kirsten L. O'Quinn, MD had 923 Medicare Part D claims for 92 beneficiaries; 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.