Doctor profile · Federal record
Dr. William Kelly, MD
Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Internal Medicine Physician · San Antonio, TX
- NPI 1720422421
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
7979 Wurzbach RD
San Antonio, TX 782294427
(210) 450-1812 - Additional location
-
30 Convent Dr
Bethesda, MD 208920001
(301) 402-2592 - Mailing address
-
3800 Reservoir RD Nw, Department of Hematology/Oncology
Washington, DC 200072113
Credentials & registration
- NPI registered
- April 2013 — 13 yrs on file
- Profile last updated
- December 8, 2025
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State licenses (3)
- Texas #S7897 · District of Columbia #MD043981 · Texas #BP10047120
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720422421. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
17,900
Distinct HCPCS
10
Medicare allowed
$558,233
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9271 |
Injection, pembrolizumab, 1 mg | 8,000 | 18 | $55 | |
J1453 |
Injection, fosaprepitant, 1 mg | 4,500 | 22 | $0 | |
J0897 |
Injection, denosumab, 1 mg | 2,640 | 17 | $23 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 796 | 47 | $0 | |
J2405 |
Injection, ondansetron hydrochloride, per 1 mg | 656 | 32 | $0 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 290 | 21 | $1 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 164 | 98 | $121 | |
96375 |
Injection of additional new drug or substance into vein | 160 | 59 | $15 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 110 | 57 | $125 | |
J3475 |
Injection, magnesium sulfate, per 500 mg | 108 | 14 | $1 |
In context: peer comparison
Among 19 peers in San Antonio Medical Oncology Physician, average services per provider: 585. This provider delivers 31× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
136
Patients
45
Total drug cost
$3,365
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levetiracetam | Generic | 39 | 13 | $1,960 |
| Dexamethasone | Generic | 29 | 16 | $411 |
| Ondansetron Hcl | Generic | 26 | 16 | $492 |
| Escitalopram Oxalate | Generic | 16 | 0 | $77 |
| Levofloxacin | Generic | 15 | 0 | $251 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 11 | 0 | $175 |
Hospital affiliations
Frequently asked questions
What is Dr. William Kelly's medical specialty?
Dr. William Kelly practices Medical Oncology Physician in San Antonio, TX.
Where does Dr. William Kelly practice?
Dr. William Kelly practices at 7979 Wurzbach RD, San Antonio, TX 782294427. Office phone: 2104501812.
What is Dr. William Kelly's NPI?
Dr. William Kelly's National Provider Identifier (NPI) is 1720422421, issued by NPPES.
Does Dr. William Kelly accept Medicare assignment?
Yes. Dr. William Kelly accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Kelly commonly perform?
Top Medicare-reported procedures in 2023: Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, fosaprepitant, 1 mg (HCPCS J1453); Injection, denosumab, 1 mg (HCPCS J0897). Source: CMS Medicare Physician & Other Practitioners file.