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

HARRY G NAZARIO DIAZ
NPI 1396310678
Emergency Medicine in Fresno, CA

Q: What is Harry Nazario Diaz's NPI number?

The NPI number for Harry Nazario Diaz is 1396310678. It was assigned to this individual provider in the NPPES registry on May 20, 2021.

Q: What is Harry Nazario Diaz's specialty?

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

Active since May 20, 2021PECOS EnrolledAccepts Medicare Assignment

1303 E HERNDON AVE, FRESNO, CA 93720(559) 450-3000 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 3, 2026, Jul 16, 2026, Jun 17, 2025 and 3 more (6 updates tracked since 2021).

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About Harry G Nazario Diaz NPPES

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

HARRY G NAZARIO DIAZ (NPI 1396310678) is an individual emergency medicine provider in Fresno, California, licensed in Connecticut (84147) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS and is a graduate of Ponce School Of Medicine (2023).

NPPES Registry Identity

NPI1396310678

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameHARRY G NAZARIO DIAZ

Location Address1303 E HERNDON AVEFresno, CA 93720-3309

Mailing Address5655 N Millbrook AveFresno, CA 93710-6404 · (787) 646-6307

Phone(559) 450-3000

Sole ProprietorNo

Medical School CMSPonce School Of MedicineGraduated 2023

Enumeration DateMay 20, 2021

Last NPPES UpdateAugust 3, 20266 updates tracked since enumeration

NPPES CertifiedAugust 3, 2026

✔ NPI 1396310678 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in CT · 84147✔ Licensed in CA · A200218✔ Licensed in MA · 1027449

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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1303 E HERNDON AVE, 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

Harry G Nazario Diaz 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 ID1759894264

PECOS Enrollment IDI20250627003360

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 20

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

MINA EMAD HANDAL MD

Student in an Organized Health Care Education/Training Program