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TREK MIKIO NOHEA MIZOGUCHI
NPI 1366137242
Emergency Medicine in Oakland, CA

Active since April 06, 2023PECOS Enrolled
747 52ND ST STE 245, OAKLAND, CA 94609(510) 428-3331 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 12, 2026, Apr 6, 2023 (2 updates tracked since 2023).

About Trek Mikio Nohea Mizoguchi NPPES

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

TREK MIKIO NOHEA MIZOGUCHI (NPI 1366137242) is an individual emergency medicine provider in Oakland, California, licensed in California (A209658) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1366137242
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameTREK MIKIO NOHEA MIZOGUCHI
Location Address747 52ND ST STE 245Oakland, CA 94609-1809
Mailing Address747 52nd St Ste 245Oakland, CA 94609-1809
Phone(510) 428-3331
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateApril 6, 2023
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1366137242 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A209658
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.
Also ListedEmergency Medicine · Pediatric Emergency MedicineTaxonomy 207PP0204X · License A209658 (CA)
747 52ND ST STE 245, Oakland, CA 94609
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Other Names 1

Former Name (1)Nohea Mizoguchi

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Trek Mikio Nohea Mizoguchi is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7214496546
PECOS Enrollment IDI20260827001445
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 Trek Mizoguchi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California San Francisco
12 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
12 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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.

MARISELLA GARCIA MD
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
BRADY DANA JOHNSON MD, MPHTM
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
CORRILYNN LYNCH
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
MOIRA K O'CONNOR LENTH MD
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
MS. RUNI TANNA
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (000) 000-0000
SONIA SUBUDHI MD
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
CHUKWUEMEKA OBIEFUNA AJAELO MD
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331
AMY MAO MD
Student in an Organized Health Care Education/Training Program
747 52ND ST STE 245
OAKLAND, CA 94609
Alameda County (510) 428-3331

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 Trek Mizoguchi's NPI number?

The NPI number for Trek Mizoguchi is 1366137242. It was assigned to this individual provider in the NPPES registry on April 6, 2023. The provider is also known as Nohea Mizoguchi.

Where is Trek Mizoguchi located?

Trek Mizoguchi practices at 747 52nd St Ste 245, Oakland, CA 94609. The listed phone number is (510) 428-3331.

What is Trek Mizoguchi's specialty?

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

Is Trek Mizoguchi enrolled in Medicare?

Yes. Trek Mizoguchi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Trek Mizoguchi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Trek Mizoguchi reassigns Medicare benefits to 2 organizations: University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). 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 Trek Mizoguchi'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 Trek Mizoguchi was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.