Doctor profile · Federal record
Dr. Cassandra Olson Williams, D.O.
Family Medicine Physician · Student in an Organized Health Care Education/Training Program · Shavano Park, TX
- NPI 1235661851
- 9 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
14530 Nw Military Hwy
Shavano Park, TX 782311622
(210) 450-6620
fax (210) 450-6621
Credentials & registration
- NPI registered
- April 2017 — 9 yrs on file
- Profile last updated
- August 11, 2021
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Texas #T0588
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235661851. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
206
Distinct HCPCS
5
Medicare allowed
$26,232
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 76 | 51 | $111 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 66 | 44 | $158 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 30 | 30 | $112 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 18 | 15 | $84 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $153 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 30. This provider delivers 6.9× the peer median.Open Payments
Industry payments received
All-time total
$24
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Edwards Lifesciences Corporation | 1 | $24.40 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
481
Patients
109
Total drug cost
$6,035
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 73 | 24 | $935 |
| Lisinopril | Generic | 66 | 23 | $479 |
| Levothyroxine Sodium | Generic | 60 | 18 | $849 |
| Amlodipine Besylate | Generic | 43 | 16 | $285 |
| Rosuvastatin Calcium | Generic | 42 | 17 | $553 |
| Hydrochlorothiazide | Generic | 29 | 11 | $143 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 25 | 0 | $164 |
| Metformin Hcl | Generic | 20 | 0 | $152 |
| Losartan Potassium | Generic | 19 | 0 | $256 |
| Omeprazole | Generic | 18 | 0 | $202 |
Frequently asked questions
What is Dr. Cassandra Olson Williams's medical specialty?
Dr. Cassandra Olson Williams practices Family Medicine Physician in Shavano Park, TX.
Where does Dr. Cassandra Olson Williams practice?
Dr. Cassandra Olson Williams practices at 14530 Nw Military Hwy, Shavano Park, TX 782311622. Office phone: 2104506620.
What is Dr. Cassandra Olson Williams's NPI?
Dr. Cassandra Olson Williams's National Provider Identifier (NPI) is 1235661851, issued by NPPES.
What procedures does Dr. Cassandra Olson Williams 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 99215); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.