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

RICHARD BAO TIEN NGUYEN MD
NPI 1174226583
Family Medicine - Adult Medicine in Pittsburg, CA

Q: What is Richard Bao Nguyen's NPI number?

The NPI number for Richard Bao Nguyen is 1174226583. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Q: What is Richard Bao Nguyen's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Adult Medicine, with taxonomy code 207QA0505X.

Active since March 24, 2023PECOS Enrolled

2220 GLADSTONE DR STE 3, PITTSBURG, CA 94565(925) 432-3318(925) 432-0886 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 28, 2026, Mar 28, 2023, Mar 24, 2023 (3 updates tracked since 2023).

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About Richard Bao Tien Nguyen Md NPPES

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

RICHARD BAO TIEN NGUYEN MD (NPI 1174226583) is an individual adult medicine provider in Pittsburg, California, licensed in California (A211485) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1174226583

Entity TypeIndividualMale

Primary Taxonomy207QA0505X

Provider Legal NameRICHARD BAO TIEN NGUYENCredential: MD

Location Address2220 GLADSTONE DR STE 3Pittsburg, CA 94565-5123

Mailing Address385 14th St Apt 2506Oakland, CA 94612-3872 · (925) 432-3318 · Fax (925) 432-0886

Phone(925) 432-3318

Fax(925) 432-0886

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateMarch 24, 2023

Last NPPES UpdateSeptember 28, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1174226583 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Adult MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QA0505X

License✔ Licensed in CA · A211485

Definition

The National Uniform Claim Committee (NUCC) recommends code 207QA0505X not be used. Choose a more appropriate code.

2220 GLADSTONE DR STE 3, Pittsburg, CA 94565

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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 (PECOS)

Richard Bao Tien Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7911466115

PECOS Enrollment IDI20260827004712

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 Reassignment

Medicare enrollment records show Richard Bao Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pittsburg-Antioch Medical Group A Professional Corporation

Same address

Internal Medicine

2220 GLADSTONE DR, SUITE 3
Pittsburg, CA 94565

Reassigned Medicare billing, California enrollment
18 clinicians in this Medicare group

NPI 1619922911 (924) 432-3318

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 94565 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 7

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

MRS. NICOLE NATALIE RANAHAN

Nurse Practitioner (Family)