Phillip Martinez-Knouse, M.D.
NPI 1689036923 · Hematology & Oncology Physician · Summit, WI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phillip Martinez-Knouse, M.D. is a Hematology & Oncology Physician provider in Summit, WI (NPI 1689036923).
Provider details
- NPI number
- 1689036923
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036.149823 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
813 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 475 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 121 | $61 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 71 | $132 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 50 | $118 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 80 | 17 |
| Anastrozole | 61 | 16 |
| Prednisone | 42 | 19 |
| Rivaroxabanbrand: Xarelto | 41 | — |
| Tamoxifen Citrate | 39 | — |
| Dexamethasone | 34 | 14 |
| Warfarin Sodium | 30 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-25
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Phillip Martinez-Knouse's NPI number?
- Phillip Martinez-Knouse's National Provider Identifier (NPI) is 1689036923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phillip Martinez-Knouse's specialty?
- Phillip Martinez-Knouse is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Phillip Martinez-Knouse located?
- Phillip Martinez-Knouse's practice location on file with NPPES is 36500 Aurora Dr, Summit, WI 53066-4899.
- What is Phillip Martinez-Knouse's phone number?
- The practice phone number listed in the NPPES registry for Phillip Martinez-Knouse is (262) 434-8800.
- Does Phillip Martinez-Knouse accept Medicare?
- Phillip Martinez-Knouse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phillip Martinez-Knouse's NPI active?
- Yes — Phillip Martinez-Knouse's NPI (1689036923) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.