Doctor profile · Federal record

Dr. James Szender, MD

Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Obstetrics & Gynecology Physician · Gynecologic Oncology Physician · Student in an Organized Health Care Education/Training Program · San Antonio, TX

  • NPI 1245473149
  • Accepts Medicare
  • 17 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4383 Medical Dr
San Antonio, TX 782293307
(210) 593-5700
Additional location
Elm and Carlton Streets
Buffalo, NY 14263
(716) 845-5776

Credentials & registration

NPPES · NUCC
NPI registered
April 2009 — 17 yrs on file
Profile last updated
July 21, 2022
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207VX0201X — NUCC code
State licenses (3)
Texas #R1659 · Texas #BP1003505 · New York #270045

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245473149. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,506
Distinct HCPCS
10
Medicare allowed
$111,048
HCPCS Description Services Patients Avg allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg 930 15 $0
J9045 Injection, carboplatin, 50 mg 257 11 $2
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 164 16 $28
80053 Blood test, comprehensive group of blood chemicals 150 23 $10
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 128 23 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 107 69 $88
99214 Established patient office or other outpatient visit, 30-39 minutes 94 26 $122
36415 Insertion of needle into vein for collection of blood sample 89 19 $8
96413 Administration of chemotherapy into vein, 1 hour or less 81 17 $126
96417 Administration of additional new drug or substance into vein, 1 hour or less 71 13 $62

In context: peer comparison

Among 5 peers in San Antonio Gynecologic Oncology Physician, average services per provider: 92. This provider delivers 27× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$506
Transactions
15
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 5 $141.33
AstraZeneca Pharmaceuticals Lp 4 $125.59
Applied Medical Resources Corporation 1 $112.51
Abbvie INC. 1 $60.01
ImmunoGen, INC. 1 $19.14
Eisai INC. 1 $16.79
Astellas Pharma US INC 1 $15.89
Tempus Ai, INC 1 $14.70

By nature of payment

Food and Beverage
$506

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
262
Patients
126
Total drug cost
$3,634
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 61 55 $190
Dexamethasone Generic 41 19 $640
Ondansetron Hcl Generic 32 22 $287
Gabapentin Generic 29 17 $220
Olanzapine Generic 28 13 $307
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 20 0 $611
Letrozole Generic 16 0 $899
Bupropion Hcl Generic 12 0 $262
Estarylla (Norgestimate-Ethinyl Estradiol) Brand 12 0 $141
Tamoxifen Citrate Generic 11 0 $75

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. James Szender's medical specialty?
Dr. James Szender practices Gynecologic Oncology Physician in San Antonio, TX.
Where does Dr. James Szender practice?
Dr. James Szender practices at 4383 Medical Dr, San Antonio, TX 782293307. Office phone: 2105935700.
What is Dr. James Szender's NPI?
Dr. James Szender's National Provider Identifier (NPI) is 1245473149, issued by NPPES.
Does Dr. James Szender accept Medicare assignment?
Yes. Dr. James Szender accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Szender commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Injection, carboplatin, 50 mg (HCPCS J9045); Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion (HCPCS 96367). Source: CMS Medicare Physician & Other Practitioners file.