Doctor profile · Federal record
Dr. Mallory Sievers, PA-C
Physician Assistant · Castaic, CA
- NPI 1902379548
- Accepts Medicare
- MIPS 84.1 / 100 · 2023
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
28253 Branch RD
Castaic, CA 913843005
(661) 803-3654 - Mailing address
-
4140 W 190Th St
Torrance, CA 905045513
Credentials & registration
- NPI registered
- January 2019 — 7 yrs on file
- Profile last updated
- August 13, 2019
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902379548. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
133
Distinct HCPCS
4
Medicare allowed
$11,860
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 79 | 79 | $120 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 26 | $85 | |
36415 |
Insertion of needle into vein for collection of blood sample | 14 | 14 | $8 | |
81002 |
Urinalysis, manual test | 14 | 14 | $3 |
In context: peer comparison
Among 1 peers in Castaic Physician Assistant, average services per provider: 33. This provider delivers 4.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
59
Patients
47
Total drug cost
$1,053
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Fluticasone Propionate | Generic | 29 | 17 | $746 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 19 | 19 | $208 |
| Naproxen | Generic | 11 | 11 | $99 |
Hospital affiliations
Frequently asked questions
What is Dr. Mallory Sievers's medical specialty?
Dr. Mallory Sievers practices Physician Assistant in Castaic, CA.
Where does Dr. Mallory Sievers practice?
Dr. Mallory Sievers practices at 28253 Branch RD, Castaic, CA 913843005. Office phone: 6618033654.
What is Dr. Mallory Sievers's NPI?
Dr. Mallory Sievers's National Provider Identifier (NPI) is 1902379548, issued by NPPES.
Does Dr. Mallory Sievers accept Medicare assignment?
Yes. Dr. Mallory Sievers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mallory Sievers 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 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.