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

KAREN MY HUYNH PA-C
NPI 1194402628
Physician Assistant in Fullerton, CA

Active since June 27, 2023PECOS Enrolled
1950 SUNNY CREST DR STE 3500, FULLERTON, CA 92835(714) 408-4249(714) 525-0123 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 21, 2025, Mar 31, 2025 (2 updates tracked since 2025).

About Karen My Huynh Pa-c NPPES

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

KAREN MY HUYNH PA-C (NPI 1194402628) is an individual physician assistant in Fullerton, California, licensed in California (65641) and active in the NPI registry since June 2023. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1194402628
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKAREN MY HUYNHCredential: PA-C
Location Address1950 SUNNY CREST DR STE 3500Fullerton, CA 92835-3646
Mailing Address11511 Shadow Creek PkwyPearland, TX 77584-7298 · (713) 442-0000
Fax(714) 525-0123
Sole ProprietorNo
Enumeration DateJune 27, 2023
Last NPPES UpdateJune 26, 20262 updates tracked since enumeration
NPPES CertifiedJune 26, 2026
NPI 1194402628 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses Licensed in CA · 65641 Licensed in TX · PA18634
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.
1950 SUNNY CREST DR STE 3500, Fullerton, CA 92835

Secondary Practice Locations 2

Location 12727 W Holcombe BlvdHouston, TX 77025-1669 · Phone (713) 442-0000
Location 22575 Yorba Linda BlvdFullerton, CA 92831-1615 · Phone (714) 449-7400

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Karen My Huynh 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 92835 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 9

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

Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Colon & Rectal Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Physician Assistant
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Physician Assistant
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Colon & Rectal Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Colon & Rectal Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835
Surgery
1950 SUNNY CREST DR STE 3500
FULLERTON, CA 92835

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 Karen Huynh's NPI number?

The NPI number for Karen Huynh is 1194402628. It was assigned to this individual provider in the NPPES registry on June 27, 2023.

Where is Karen Huynh located?

Karen Huynh practices at 1950 Sunny Crest Dr Ste 3500, Fullerton, CA 92835. The listed phone number is (714) 408-4249.

What is Karen Huynh's specialty?

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

Is Karen Huynh enrolled in Medicare?

Yes. Karen Huynh is registered in the Medicare PECOS enrollment system.

What insurance does Karen Huynh accept?

Health plans from UnitedHealthcare list Karen Huynh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Huynh was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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.