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UTA GUO
NPI 1225564172
Family Medicine in Irvine, CA

Active since May 11, 2017PECOS EnrolledAccepts Medicare Assignment
4050 BARRANCA PKWY STE 200, IRVINE, CA 92604(949) 551-1090(949) 262-5500 Get Directions Write a Review

NPPES record last updated: September 22, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 24, 2021, May 11, 2017 (2 updates tracked since 2017).

About Uta Guo NPPES

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

UTA GUO (NPI 1225564172) is an individual family medicine provider in Irvine, California, licensed in California (C202986) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1225564172
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameUTA GUO
Location Address4050 BARRANCA PKWY STE 200Irvine, CA 92604-1723
Mailing Address4050 Barranca Pkwy Ste 200Irvine, CA 92604-1723 · (949) 551-1090 · Fax (949) 262-5500
Phone(949) 551-1090
Fax(949) 262-5500
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMay 11, 2017
Last NPPES UpdateSeptember 22, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 22, 2025
✔ NPI 1225564172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in CA · C202986✔ Licensed in NY · 306421
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4050 BARRANCA PKWY STE 200, Irvine, CA 92604
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Uta Guo is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820369259
PECOS Enrollment IDI20251006003021
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Uta Guo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Memorialcare Medical Foundation
8.6 mi
Clinic/Center
17360 BROOKHURST ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 948 clinicians in this Medicare group
NPI 1205167350 (877) 696-3622
Icahn School Of Medicine At Mount Sinai
2,439 mi
Internal Medicine
222 WEST 14TH STREET
New York, NY 10011
  • Reassigned Medicare billing, New York enrollment
  • 309 clinicians in this Medicare group
NPI 1568841930 (212) 604-1800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
71 services37 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
28 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92604 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
$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 7

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

MISS LISA RENEE CRANE M.D.
Obstetrics & Gynecology (Obstetrics)
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 559-1911
PANTEA MOZAYENI MD
Obstetrics & Gynecology
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 559-1911
MRS. CARLA SUZANNE WELLS M.D.
Obstetrics & Gynecology
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 559-1911
WENQIANG TIAN
Psychiatry & Neurology (Neurology)
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 551-1090
MITCHELL POHL
Marriage & Family Therapist
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (877) 696-3622
MS. DEVON D HOLLOWAY NP-C
Nurse Practitioner (Women's Health)
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 559-1911
DR. HAN VO MD
Internal Medicine
4050 BARRANCA PKWY STE 200
IRVINE, CA 92604
Orange County (949) 551-1090

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 Uta Guo's NPI number?

The NPI number for Uta Guo is 1225564172. It was assigned to this individual provider in the NPPES registry on May 11, 2017.

Where is Uta Guo located?

Uta Guo practices at 4050 Barranca Pkwy Ste 200, Irvine, CA 92604. The listed phone number is (949) 551-1090.

What is Uta Guo's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Uta Guo enrolled in Medicare?

Yes. Uta Guo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Uta Guo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Uta Guo reassigns Medicare benefits to 2 organizations: Memorialcare Medical Foundation (Fountain Valley, CA) and Icahn School Of Medicine At Mount Sinai (New York, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Uta Guo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Uta Guo was last updated on September 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.