Peter Mathern, M.D.
NPI 1316995699 · Medical Oncology Physician · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Mathern, M.D. is a Medical Oncology Physician provider in Flagstaff, AZ (NPI 1316995699).
Provider details
- NPI number
- 1316995699
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24332 (AZ)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,375 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 700 | $87 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 626 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 617 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 573 | $8 |
| Enhancing Oncology Model (eom) Monthly Enhanced Oncology Services (meos) Payment for Eom Enhanced ServicesM0010 | 561 | $73 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 109 | 33 |
| Prednisone | 71 | 23 |
| Abiraterone Acetate | 68 | 12 |
| Enzalutamidebrand: Xtandi | 59 | — |
| Venetoclaxbrand: Venclexta | 56 | — |
| Apixabanbrand: Eliquis | 49 | — |
| Prochlorperazine Maleate | 48 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,977 across 125 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2026-03-09
- Certified
- 2026-03-09
Frequently asked questions
- What is Peter Mathern's NPI number?
- Peter Mathern's National Provider Identifier (NPI) is 1316995699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Mathern's specialty?
- Peter Mathern is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Mathern located?
- Peter Mathern's practice location on file with NPPES is 77 W Forest Ave, Flagstaff, AZ 86001-1479.
- What is Peter Mathern's phone number?
- The practice phone number listed in the NPPES registry for Peter Mathern is (928) 635-7307.
- Does Peter Mathern accept Medicare?
- Peter Mathern is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Mathern's NPI active?
- Yes — Peter Mathern's NPI (1316995699) is active in the NPPES registry as of the last update on 2026-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.