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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.

CATTIEN NGOC PHAN DO
NPI 1992383525
Psychiatry & Neurology - Neurology in Irvine, CA

Active since April 02, 2021PECOS Enrolled
6670 ALTON PKWY, IRVINE, CA 92618(833) 574-2273 Get Directions Write a Review

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Aug 5, 2026, Apr 2, 2021 (2 updates tracked since 2021).

About Cattien Ngoc Phan Do NPPES

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

CATTIEN NGOC PHAN DO (NPI 1992383525) is an individual neurology provider in Irvine, California, licensed in California (20A20780) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992383525
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameCATTIEN NGOC PHANCredential: DO
Location Address6670 ALTON PKWYIrvine, CA 92618-3734
Mailing Address6670 Alton PkwyIrvine, CA 92618-3734 · (833) 574-2273
Phone(833) 574-2273
Sole ProprietorNo
Enumeration DateApril 2, 2021
Last NPPES UpdateAugust 5, 20262 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
✔ NPI 1992383525 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · 20A20780
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
6670 ALTON PKWY, Irvine, CA 92618
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Other Names 1

Former Name (1)Cat Tien Ngoc Phan

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cattien Ngoc Phan Do 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 92618 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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.

KAISER PERMANENTE
Health Maintenance Organization
6670 ALTON PKWY, ANESTHESIOLOGY DEPARTMENT 2ND FLOOR
IRVINE, CA 92618
Orange County (832) 368-1976
BEATRIZ SIMONS PA
Physician Assistant (Surgical)
6670 ALTON PKWY
IRVINE, CA 92618
Orange County (949) 932-5105
MRS. THUY DUONG TRUONG LE PHARM.D.
Pharmacist
6670 ALTON PKWY
IRVINE, CA 92618
Orange County (949) 932-5090
DR. GEORGE YUEN M.D.
Internal Medicine (Pulmonary Disease)
6670 ALTON PKWY
IRVINE, CA 92618
Orange County (888) 988-2800
TIFFANIE THY DO M.D.
Internal Medicine (Hematology & Oncology)
6670 ALTON PKWY
IRVINE, CA 92618
Orange County (833) 574-2273
CLAIRE LOURDES A GERONA
Physical Therapist
6670 ALTON PKWY
IRVINE, CA 92618
Orange County (833) 574-2273
DR. ALI M SOLTANI M.D.
Surgery (Plastic and Reconstructive Surgery)
6670 ALTON PKWY, MEDICAL OFFICE BUILDING 1
IRVINE, CA 92618
Orange County (949) 932-5938
ROBERT EVAN TUCHLER MD
Plastic Surgery
6670 ALTON PKWY, SAND CANYON MEDICAL OFFICE, SUITE 4110
IRVINE, CA 92618
Orange County (949) 932-5126

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 Cattien Phan's NPI number?

The NPI number for Cattien Phan is 1992383525. It was assigned to this individual provider in the NPPES registry on April 2, 2021. The provider is also known as Cat Tien Ngoc Phan.

Where is Cattien Phan located?

Cattien Phan practices at 6670 Alton Pkwy, Irvine, CA 92618. The listed phone number is (833) 574-2273.

What is Cattien Phan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Cattien Phan enrolled in Medicare?

Yes. Cattien Phan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Cattien Phan was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 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.