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SCAR GUIZHI GUO
NPI 1407448772
Emergency Medicine in Oakland, CA

Active since February 09, 2021PECOS Enrolled
1411 E 31ST ST, OAKLAND, CA 94602(510) 437-4564 Get Directions Write a Review

NPPES record last updated: May 20, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 20, 2026, Mar 24, 2023, Feb 9, 2021 (3 updates tracked since 2021).

About Scar Guizhi Guo NPPES

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

SCAR GUIZHI GUO (NPI 1407448772) is an individual emergency medicine provider in Oakland, California, licensed in California (A198376) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (2023).

NPPES Registry Identity

NPI1407448772
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameSCAR GUIZHI GUO
Location Address1411 E 31ST STOakland, CA 94602-1092
Mailing Address1411 E 31st StOakland, CA 94602-1018
Phone(510) 437-4564
Sole ProprietorNo
Medical School CMSJohns Hopkins University School Of MedicineGraduated 2023
Enumeration DateFebruary 9, 2021
Last NPPES UpdateMay 20, 20263 updates tracked since enumeration
NPPES CertifiedMay 20, 2026
✔ NPI 1407448772 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A198376
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1411 E 31ST ST, Oakland, CA 94602
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Other Names 1

Former Name (1)Scarlett Guizhi Guo

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Scar Guizhi Guo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4284106816
PECOS Enrollment IDI20260616000385
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 94602 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

MS. YVONNE DIANE ESCARSEGA MSW
Social Worker (Clinical)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
MR. JUAN CASILLAS JR. NP
Nurse Practitioner (Family)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4800
SADHANA SAMANT MD
Obstetrics & Gynecology
1411 E 31ST ST, OAKCARE MEDICAL GROUP
OAKLAND, CA 94602
Alameda County (510) 437-4323
PATRICIA SCOTT MEYER PA
Clinical Nurse Specialist (Emergency)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (209) 342-2300
NATHALIE BALOGUN MSW MPH
Social Worker (Clinical)
1411 E 31ST ST, ALAMEDA COUNTY MEDICAL CENTER - MEDICAL SOCAL WORK SRVC
OAKLAND, CA 94602
Alameda County (510) 437-4949
CYNTHIA MARIE ROWDEN RN
Registered Nurse (Ambulatory Care)
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4373
DR. KAYLA ENRIQUEZ MD
Emergency Medicine
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4564
DR. CHERYL LIN PARK M.D.
Surgery
1411 E 31ST ST
OAKLAND, CA 94602
Alameda County (510) 437-4743

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 Scar Guo's NPI number?

The NPI number for Scar Guo is 1407448772. It was assigned to this individual provider in the NPPES registry on February 9, 2021. The provider is also known as Scarlett Guizhi Guo.

Where is Scar Guo located?

Scar Guo practices at 1411 E 31st St, Oakland, CA 94602. The listed phone number is (510) 437-4564.

What is Scar Guo's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Scar Guo enrolled in Medicare?

Yes. Scar Guo is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Scar Guo was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.