Doctor profile · Federal record
Dr. Katherine Mager, MD
Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Student in an Organized Health Care Education/Training Program · Buffalo, NY
- NPI 1376825646
- Accepts Medicare
- 15 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
Elm and Carlton Streets
Buffalo, NY 14263
(716) 845-2300 - Additional location
-
1275 York Ave
New York, NY 100656007
(646) 888-3217
Credentials & registration
- NPI registered
- September 2011 — 15 yrs on file
- Profile last updated
- January 20, 2021
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207VX0201X — NUCC code
- State license (1)
- New York #279874
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1376825646. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
143
Distinct HCPCS
4
Medicare allowed
$10,692
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 53 | 15 | $48 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 50 | 16 | $95 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 29 | 20 | $94 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 11 | 11 | $63 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 31. This provider delivers 4.6× the peer median.Open Payments
Industry payments received
All-time total
$218
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Genmab U.S., Inc. | 1 | $124.99 | |
| Merck Sharp & Dohme LLC | 1 | $93.35 |
By nature of payment
Frequently asked questions
What is Dr. Katherine Mager's medical specialty?
Dr. Katherine Mager practices Gynecologic Oncology Physician in Buffalo, NY.
Where does Dr. Katherine Mager practice?
Dr. Katherine Mager practices at Elm and Carlton Streets, Buffalo, NY 14263. Office phone: 7168452300.
What is Dr. Katherine Mager's NPI?
Dr. Katherine Mager's National Provider Identifier (NPI) is 1376825646, issued by NPPES.
Does Dr. Katherine Mager accept Medicare assignment?
Yes. Dr. Katherine Mager accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Mager commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.