Zachary Graff, M.D.
NPI 1952798274 · Medical Oncology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Graff, M.D. is a Medical Oncology Physician provider in Milwaukee, WI (NPI 1952798274).
Provider details
- NPI number
- 1952798274
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 75598 (WI)
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 tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-24
- Last updated
- 2021-07-29
- Certified
- 2021-07-29
Frequently asked questions
- What is Zachary Graff's NPI number?
- Zachary Graff's National Provider Identifier (NPI) is 1952798274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Graff's specialty?
- Zachary Graff is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Graff located?
- Zachary Graff's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874.
- What is Zachary Graff's phone number?
- The practice phone number listed in the NPPES registry for Zachary Graff is (414) 955-4170.
- Does Zachary Graff accept Medicare?
- Zachary Graff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Graff's NPI active?
- Yes — Zachary Graff's NPI (1952798274) is active in the NPPES registry as of the last update on 2021-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.