Doctor profile · Federal record
Dr. Stephen Mayer, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Hematology & Oncology Physician · Hematology & Oncology Physician · Sierra Vista, AZ
- NPI 1982678975
- Accepts Medicare
- MIPS 86.2 / 100 · 2023
- 25 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
5151 E Highway 90
Sierra Vista, AZ 856352436
(520) 803-6644
fax (520) 459-3193 - Additional location
-
2375 S Ridgeview Dr
Yuma, AZ 853648868
(928) 317-2518 - Mailing address
-
10240 Park Meadows Dr
Lone Tree, CO 801245425
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- July 23, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (3)
- Colorado #0055236 · Massachusetts #219667 · Arizona #73625
- Medicaid
- CO #40726355
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982678975. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
347
Distinct HCPCS
6
Medicare allowed
$34,623
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 155 | 89 | $97 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 99 | 79 | $66 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 33 | 27 | $142 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 30 | 30 | $179 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $132 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 14 | 11 | $66 |
In context: peer comparison
Among 3 peers in Sierra Vista Hematology & Oncology Physician, average services per provider: 5,290. This provider delivers 0.1× the peer median.Open Payments
Industry payments received
All-time total
$533
Transactions
21
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 3 | $69.86 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $56.66 | |
| Sumitomo Pharma America, INC. | 2 | $47.52 | |
| BeiGene USA, INC. | 2 | $36.66 | |
| Rigel Pharmaceuticals, INC. | 2 | $28.02 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $27.50 | |
| Novartis Pharmaceuticals Corporation | 1 | $26.54 | |
| Pharmacosmos Therapeutics INC. | 1 | $24.28 | |
| Sirtex Medical INC | 1 | $24.10 | |
| Astellas Pharma US INC | 1 | $23.43 | |
| Incyte Corporation | 1 | $22.64 | |
| Exelixis INC. | 1 | $22.26 | |
| GlaxoSmithKline, LLC. | 1 | $21.45 | |
| Stemline Therapeutics INC. | 1 | $19.24 | |
| Sobi, INC | 1 | $17.22 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
380
Patients
58
Total drug cost
$1,954,101
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Xtandi (Enzalutamide) | Brand | 74 | 0 | $1,105,173 |
| Prochlorperazine Maleate | Generic | 45 | 30 | $318 |
| Acyclovir | Generic | 43 | 0 | $534 |
| Anastrozole | Generic | 31 | 0 | $927 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 30 | 0 | $143 |
| Prednisone | Generic | 29 | 12 | $202 |
| Dexamethasone | Generic | 23 | 16 | $566 |
| Abiraterone Acetate | Generic | 22 | 0 | $3,780 |
| Inlyta (Axitinib) | Brand | 18 | 0 | $394,344 |
| Revlimid (Lenalidomide) | Brand | 15 | 0 | $274,887 |
Hospital affiliations
Frequently asked questions
What is Dr. Stephen Mayer's medical specialty?
Dr. Stephen Mayer practices Hematology & Oncology Physician in Sierra Vista, AZ.
Where does Dr. Stephen Mayer practice?
Dr. Stephen Mayer practices at 5151 E Highway 90, Sierra Vista, AZ 856352436. Office phone: 5208036644.
What is Dr. Stephen Mayer's NPI?
Dr. Stephen Mayer's National Provider Identifier (NPI) is 1982678975, issued by NPPES.
Does Dr. Stephen Mayer accept Medicare assignment?
Yes. Dr. Stephen Mayer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Mayer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.