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DIEM NGOC NGUYEN MD
NPI 1104323146
Pediatrics in Fresno, CA

Active since April 06, 2018PECOS EnrolledAccepts Medicare Assignment
7145 N CHESTNUT AVE STE 101, FRESNO, CA 93720(559) 603-7270(559) 603-7271 Get Directions Write a Review

NPPES record last updated: March 5, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 5, 2026, Feb 6, 2026, May 26, 2022 (3 updates tracked since 2022).

About Diem Ngoc Nguyen Md NPPES

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

DIEM NGOC NGUYEN MD (NPI 1104323146) is an individual pediatrics provider in Fresno, California, licensed in California (A179057) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1104323146
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDIEM NGOC NGUYENCredential: MD
Location Address7145 N CHESTNUT AVE STE 101Fresno, CA 93720-0359
Mailing AddressPo Box 889442Los Angeles, CA 90088-9442
Phone(559) 603-7270
Fax(559) 603-7271
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 6, 2018
Last NPPES UpdateMarch 5, 20263 updates tracked since enumeration
NPPES CertifiedMarch 5, 2026
✔ NPI 1104323146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A179057
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
7145 N CHESTNUT AVE STE 101, Fresno, CA 93720
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diem Ngoc Nguyen Md 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 ID8022498369
PECOS Enrollment IDI20220705002412
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 93720 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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 6

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

DR. JOHN MOUA M.D.
Pediatrics (Pediatric Pulmonology)
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 603-7270
DR. ALBERT CHIENTU MU D.O.
Family Medicine (Adult Medicine)
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 299-1178
ARSIA MOUA NP-C
Nurse Practitioner (Pediatrics)
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 603-7270
COPELAND MEDICAL INC
Internal Medicine
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 299-1178
MS. CYNTHIA BAER FNP
Nurse Practitioner
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 299-1178
DR. OMAR FOUAD HANAFY MD
Pediatrics
7145 N CHESTNUT AVE STE 101
FRESNO, CA 93720
Fresno County (559) 603-7270

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 Diem Nguyen's NPI number?

The NPI number for Diem Nguyen is 1104323146. It was assigned to this individual provider in the NPPES registry on April 6, 2018.

Where is Diem Nguyen located?

Diem Nguyen practices at 7145 N Chestnut Ave Ste 101, Fresno, CA 93720. The listed phone number is (559) 603-7270.

What is Diem Nguyen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Diem Nguyen enrolled in Medicare?

Yes. Diem Nguyen 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.

When was this NPI record last updated?

The NPPES record for Diem Nguyen was last updated on March 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.