NPPES file of Aug 9, 2026

Phillip Douglas Martinez-Knouse, M.D.

Hematology & Oncology Physician · Summit, WI

Phillip Douglas Martinez-Knouse, M.D. is a hematology & oncology physician with a practice address in Summit, Wisconsin, and NPI 1689036923, issued on Mar 25, 2016. Check the license (Wisconsin 22233-875, 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
1689036923
Name
Phillip Douglas Martinez-Knouse
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
22233-875 WI
036.149823 IL
Self-reported in NPPES; status is on the state search
Practice location
36500 Aurora Dr, Summit, WI 53066
Phone
(262) 434-8800
Enumerated
Mar 25, 2016
Record last updated
Jun 25, 2025
Medicaid ID
100204204 WI
Medicare enrollment
Enrolled (PECOS I20220719001291); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest hematology & oncology physician records → All 295 in Wisconsin → Look up another NPI →

Also registered at 36500 Aurora Dr

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

  1. Jihan Akhtar Bhikhapurwala, MDOphthalmology Physician1679894901
  2. Tulay Aksoy, MDInternal Medicine Physician1245485697
  3. Inna Allen, M.D.Family Medicine Physician1649581315
  4. Benjamin Andrew, M.D.Surgery Physician1083000863
  5. Steven Andrews, MDEmergency Medicine Physician1649224767
  6. Karina Arkush, MDNeurology Physician1659690741

Verify Phillip Douglas Martinez-Knouse in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 22233-875    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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8% more Medicare Part D claims than the average hematology & oncology physician in 2024

951 Medicare Part D claims for 177 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 62 claims were for opioids.

  1. Phillip Martinez-Knouse951
  2. Specialty average877

Most prescribed

  1. Eliquis80 claims
  2. Anastrozole61 claims
  3. Prednisone42 claims
  4. Xarelto41 claims
  5. Tamoxifen Citrate39 claims
  6. Dexamethasone34 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.

Bills Medicare through 2 group practices

  1. Aurora Advanced Healthcare, Inc.Summit, WI
  2. Aurora Health Care Metro, Inc.Summit, WI

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

Phillip Douglas Martinez-Knouse among 295 hematology & oncology physician records in Wisconsin

Phillip Douglas Martinez-Knouse, M.D. is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 86% of them.

  • NPI issued2016 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2016 · median 2004 among the 217 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Wisconsin

There are 295 hematology & oncology physician records in Wisconsin.

All 295 in Wisconsin → Every provider in Summit → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Richard Hansen, MDOconomowoc, WI 530661164496162
  2. Adam Siegel, MDSummit, WI 530661750616561
  3. Michael Thompson, MD, PHDSummit, WI 530661265453070
  4. Michael Wheeler, M.D.Merton, WI 530561811250426
  5. Qiaofang Chen, M.D.Sheboygan, WI 530811619161890
  6. Michael Delatorre, M.D.Menomonee Falls, WI 530511831211861
  7. Nicholas GustafsonSheboygan, WI 530811508286386
  8. Max Haid, MDSheboygan, WI 530811730296336

Common questions

What is Phillip Douglas Martinez-Knouse, M.D.'s NPI number?

Phillip Douglas Martinez-Knouse, M.D.'s National Provider Identifier (NPI) is 1689036923, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Phillip Douglas Martinez-Knouse, M.D. located?

The NPPES record lists a practice address at 36500 Aurora Dr, Summit, WI, 53066. Phone: (262) 434-8800. Providers update this record themselves, so call before visiting.

How can I verify Phillip Douglas Martinez-Knouse, M.D.'s license?

NPPES lists Wisconsin license number 22233-875, 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 Phillip Douglas Martinez-Knouse, M.D. prescribe under Medicare Part D?

In 2024, Phillip Douglas Martinez-Knouse, M.D. had 951 Medicare Part D claims for 177 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.