Doctor profile · Federal record
Dr. Cassandra Karn, P.A.
Physician Assistant · Mission Viejo, CA
- NPI 1245247774
- 20 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
27700 Medical Center RD
Mission Viejo, CA 926916426
(949) 365-3862 - Mailing address
-
2185 Avenida Espada
San Clemente, CA 926735604
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- July 9, 2010
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #PA16936
- Medicaid
- CA #PA16936
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245247774. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
76
Distinct HCPCS
2
Medicare allowed
$10,152
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 44 | 44 | $154 | |
99284 |
Emergency department visit with moderate level of medical decision making | 32 | 31 | $106 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 65. This provider delivers 1.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
51
Patients
51
Total drug cost
$258
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 22 | 22 | $72 |
| Ondansetron Odt (Ondansetron) | Brand | 15 | 15 | $53 |
| Cephalexin | Generic | 14 | 14 | $133 |
Frequently asked questions
What is Dr. Cassandra Karn's medical specialty?
Dr. Cassandra Karn practices Physician Assistant in Mission Viejo, CA.
Where does Dr. Cassandra Karn practice?
Dr. Cassandra Karn practices at 27700 Medical Center RD, Mission Viejo, CA 926916426. Office phone: 9493653862.
What is Dr. Cassandra Karn's NPI?
Dr. Cassandra Karn's National Provider Identifier (NPI) is 1245247774, issued by NPPES.
What procedures does Dr. Cassandra Karn commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.