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Active NPI 1902379548 Individual Practitioner Female Practitioner

Mallory Langell Sievers , PA-C

Physician Assistant • Castaic, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Mallory Sievers, PA-C is a certified Physician Assistant practicing in Castaic, CA. With approximately 8 years of clinical experience since completing medical education in 2018, Mallory Sievers delivers high-quality medical care to the local community at 28253 BRANCH RD.

Mallory Sievers is affiliated with Cedars-Sinai Medical Care Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, insertion of needle into vein for collection of blood sample, urinalysis, manual test. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

28253 Branch Rd

Castaic, CA 913843005

Telephone 6618033654
Associated Practice Facility / Clinic
🏢 Cedrs-Sinai Medical Center Facility NPI 1164609160

Medicare Profile & Education

Medical School

Other

Graduation Year

2018

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Castaic, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
8 Yrs +2.0 yrs vs City Avg
City Avg: 6.0 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
2 Specialists

Practicing in Castaic, CA (14617 Statewide)

Telehealth Adoption Rate
50.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
73.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sievers (8 Years) 8 Yrs
Castaic Specialty Average (6.0 Years) 6.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
33 33 $459.06 $118.73
99213 Established patient office or other outpatient visit, typically 15 minutes
25 25 $314.28 $84.16

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Cedars-Sinai Medical Care Foundation

8635 W 3rd St, Los Angeles, CA 900486111

Phone: 3104230674

Cedars-Sinai Medical Care Foundation

1922 Hillhurst Ave, Los Angeles, CA 900272712

Phone: 4243145200

Cedars-Sinai Medical Care Foundation

8501 Wilshire Blvd, Beverly Hills, CA 902113148

Phone: 3103853334

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Business Mailing Address August 13, 2019

Registered at 4140 W 190TH ST, TORRANCE, CA 905045513 (Tel: 6618033654)

👤
Provider Name / Credentials Updated August 13, 2019

Recorded as MALLORY SIEVERS, PA-C

NPI Profile Active January 07, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location January 07, 2019

Registered at 28253 BRANCH RD, CASTAIC, CA 913843005 (Tel: 6618033654)

📍
Updated Business Mailing Address January 07, 2019

Registered at 28253 BRANCH RD, CASTAIC, CA 913843005 (Tel: 6618033654)

👤
Provider Name / Credentials Updated January 07, 2019

Recorded as MALLORY HOLLAND, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 07, 2019

Physician Assistant

🟢
Initial NPI Registration & Enumeration January 07, 2019

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1902379548
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 07, 2019
Last Update: August 13, 2019
Sole Proprietor: No

Mailing Address

4140 W 190th St

Torrance, CA 905045513

Phone: 6618033654

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.