Doctor profile · Federal record
Dr. Peter Mathern, M.D.
Medical Oncology Physician (CMS: Medical Oncology) · Hematology & Oncology Physician · Flagstaff, AZ
- NPI 1316995699
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
77 W Forest Ave
Flagstaff, AZ 860011479
(928) 635-7307
fax (928) 774-3844 - Mailing address
-
Po Box 749495
Atlanta, GA 303749495
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- March 9, 2026
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Arizona #24332
- Medicaid
- AZ #361311
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316995699. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
116,010
Distinct HCPCS
10
Medicare allowed
$3,789,650
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9271 |
Injection, pembrolizumab, 1 mg | 35,100 | 24 | $54 | |
J0897 |
Injection, denosumab, 1 mg | 19,260 | 58 | $23 | |
J0185 |
Injection, aprepitant, 1 mg | 18,200 | 29 | $2 | |
J1930 |
Injection, lanreotide, 1 mg | 11,760 | 11 | $49 | |
J0885 |
Injection, epoetin alfa, (for non-esrd use), 1000 units | 7,560 | 21 | $7 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 3,515 | 67 | $0 | |
Q5119 |
Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg | 3,490 | 11 | $28 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 2,620 | 52 | $1 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,395 | 436 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 1,294 | 530 | $87 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 1,784. This provider delivers 65× the peer median.Open Payments
Industry payments received
All-time total
$2,977
Transactions
82
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 8 | $218.81 | |
| PFIZER INC. | 9 | $213.48 | |
| Novartis Pharmaceuticals Corporation | 9 | $198.40 | |
| Genmab U.S., Inc. | 9 | $194.43 | |
| Janssen Biotech, Inc. | 8 | $176.17 | |
| Lilly USA, LLC | 6 | $161.70 | |
| Daiichi Sankyo Inc. | 5 | $124.71 | |
| E.R. Squibb & Sons, L.L.C. | 5 | $101.50 | |
| Astellas Pharma US Inc | 3 | $96.86 | |
| Incyte Corporation | 4 | $92.46 | |
| SOBI, INC | 3 | $90.20 | |
| ARRAY BIOPHARMA INC | 5 | $84.20 | |
| Blueprint Medicines Corporation | 2 | $81.68 | |
| ABBVIE INC. | 3 | $74.39 | |
| Eisai Inc. | 3 | $73.51 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
739
Patients
127
Total drug cost
$2,156,823
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Anastrozole | Generic | 121 | 33 | $3,521 |
| Abiraterone Acetate | Generic | 80 | 0 | $306,847 |
| Revlimid (Lenalidomide) | Brand | 77 | 0 | $1,085,305 |
| Prochlorperazine Maleate | Generic | 70 | 31 | $947 |
| Prednisone | Generic | 65 | 19 | $805 |
| Imatinib Mesylate | Generic | 39 | 0 | $75,834 |
| Dexamethasone | Generic | 38 | 14 | $1,089 |
| Letrozole | Generic | 38 | 14 | $887 |
| Venclexta (Venetoclax) | Brand | 37 | 0 | $290,984 |
| Tamoxifen Citrate | Generic | 35 | 0 | $822 |
Hospital affiliations
Frequently asked questions
What is Dr. Peter Mathern's medical specialty?
Dr. Peter Mathern practices Medical Oncology Physician in Flagstaff, AZ.
Where does Dr. Peter Mathern practice?
Dr. Peter Mathern practices at 77 W Forest Ave, Flagstaff, AZ 860011479. Office phone: 9286357307.
What is Dr. Peter Mathern's NPI?
Dr. Peter Mathern's National Provider Identifier (NPI) is 1316995699, issued by NPPES.
Does Dr. Peter Mathern accept Medicare assignment?
Yes. Dr. Peter Mathern accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Mathern commonly perform?
Top Medicare-reported procedures in 2023: Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, denosumab, 1 mg (HCPCS J0897); Injection, aprepitant, 1 mg (HCPCS J0185). Source: CMS Medicare Physician & Other Practitioners file.