Doctor profile · Federal record
Dr. Karen Williams, PA-C
Medical Physician Assistant · San Antonio, TX
- NPI 1598154650
- 11 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4358 Lockhill Selma RD Ste 110
San Antonio, TX 78249
(210) 492-4200
fax (210) 492-4380
Credentials & registration
- NPI registered
- January 2015 — 11 yrs on file
- Profile last updated
- May 16, 2018
- Specialty taxonomy
- 363AM0700X — NUCC code
- State license (1)
- Texas #PA09610
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598154650. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
36
Distinct HCPCS
1
Medicare allowed
$3,786
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 36 | 29 | $105 |
In context: peer comparison
Among 36 peers in San Antonio Medical Physician Assistant, average services per provider: 121. This provider delivers 0.3× the peer median.Open Payments
Industry payments received
All-time total
$434
Transactions
24
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch Health US, LLC | 6 | $107.60 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 6 | $85.93 | |
| Abbott Laboratories | 3 | $61.01 | |
| Lilly USA, LLC | 2 | $42.02 | |
| Abbvie INC. | 2 | $39.19 | |
| Nevro Corp. | 1 | $32.71 | |
| Alk-Abello, INC | 1 | $17.92 | |
| Azurity Pharmaceuticals, INC. | 1 | $16.82 | |
| GlaxoSmithKline, LLC. | 1 | $16.28 | |
| Amgen INC. | 1 | $14.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
241
Patients
0
Total drug cost
$31,899
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 27 | 0 | $352 |
| Montelukast Sodium | Generic | 27 | 0 | $313 |
| Ozempic (Semaglutide) | Brand | 26 | 0 | $27,796 |
| Olmesartan Medoxomil | Generic | 21 | 0 | $622 |
| Lisinopril | Generic | 15 | 0 | $122 |
| Levothyroxine Sodium | Generic | 14 | 0 | $270 |
| Sertraline Hcl | Generic | 14 | 0 | $267 |
| Carvedilol | Generic | 13 | 0 | $51 |
| Gabapentin | Generic | 13 | 0 | $147 |
| Amlodipine Besylate | Generic | 12 | 0 | $145 |
Frequently asked questions
What is Dr. Karen Williams's medical specialty?
Dr. Karen Williams practices Medical Physician Assistant in San Antonio, TX.
Where does Dr. Karen Williams practice?
Dr. Karen Williams practices at 4358 Lockhill Selma RD Ste 110, San Antonio, TX 78249. Office phone: 2104924200.
What is Dr. Karen Williams's NPI?
Dr. Karen Williams's National Provider Identifier (NPI) is 1598154650, issued by NPPES.
What procedures does Dr. Karen Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.