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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ERIKA KIRSTEN ZEEN PA-C
NPI 1891543088
Physician Assistant in Alhambra, CA

Active since May 11, 2024PECOS Enrolled
1000 S FREMONT AVE UNIT 7, ALHAMBRA, CA 91803(626) 457-4240 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jul 24, 2026, May 11, 2024 (2 updates tracked since 2024).

About Erika Kirsten Zeen Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ERIKA KIRSTEN ZEEN PA-C (NPI 1891543088) is an individual physician assistant in Alhambra, California, licensed in California (PA68547) and active in the NPI registry since May 2024. She is enrolled in Medicare PECOS and maintains a secondary practice location in Fullerton.

NPPES Registry Identity

NPI1891543088
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameERIKA KIRSTEN ZEENCredential: PA-C
Location Address1000 S FREMONT AVE UNIT 7Alhambra, CA 91803-8897
Mailing Address296 E 19th StCosta Mesa, CA 92627-2834 · (909) 801-1391
Phone(626) 457-4240
Sole ProprietorYes
Enumeration DateMay 11, 2024
Last NPPES UpdateJuly 24, 20262 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
✔ NPI 1891543088 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · PA68547
Definition
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.
1000 S FREMONT AVE UNIT 7, Alhambra, CA 91803
Open in Google Maps ↗

Other Names 1

Former Name (1)Erika Kirsten Nichols

Secondary Practice Location 1

Location 1101 E Valencia Mesa DrFullerton, CA 92835-3809 · Phone (714) 871-3280

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Erika Kirsten Zeen Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91803 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS AUDREY JIWON CHOI
Student in an Organized Health Care Education/Training Program
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4240
ANITA PETROSYAN PA
Physician Assistant
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (818) 744-6334
KEURY ORTEZ HERNANDEZ
Student in an Organized Health Care Education/Training Program
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4240
SHANNON MICHELLE ARIAS ORTEGA
Student in an Organized Health Care Education/Training Program
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4240
BRADLEY WILLIAM DEA
Physician Assistant
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4254
CRYSTAL NOMI CHANG
Student in an Organized Health Care Education/Training Program
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4240
MR. SHAYAN FIROZ RAHMAN
Student in an Organized Health Care Education/Training Program
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (571) 830-9335
JOSELINE OCHOA
Physician Assistant
1000 S FREMONT AVE UNIT 7
ALHAMBRA, CA 91803
Los Angeles County (626) 457-4254

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Erika Zeen's NPI number?

The NPI number for Erika Zeen is 1891543088. It was assigned to this individual provider in the NPPES registry on May 11, 2024. The provider is also known as Erika Kirsten Nichols.

Where is Erika Zeen located?

Erika Zeen practices at 1000 S Fremont Ave Unit 7, Alhambra, CA 91803. The listed phone number is (626) 457-4240.

What is Erika Zeen's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Erika Zeen enrolled in Medicare?

Yes. Erika Zeen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Erika Zeen was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.