ALLYSON DENISE CHUN O.D.
NPI 1881000404
Optometrist in Fresno, CA

Q: What is Allyson Chun's NPI number?

The NPI number for Allyson Chun is 1881000404. It was assigned to this individual provider in the NPPES registry on July 2, 2014.

Q: What is Allyson Chun's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Allyson Chun was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.

Active since July 02, 2014PECOS Enrolled

1360 E HERNDON AVE, SUITE 301, FRESNO, CA 93720(559) 486-5000(559) 439-7854 Get Directions Write a Review

NPPES record last updated: December 30, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Allyson Denise Chun O.d. NPPES

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

ALLYSON DENISE CHUN O.D. (NPI 1881000404) is an individual optometrist in Fresno, California, licensed in California (14939) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1881000404

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameALLYSON DENISE CHUNCredential: O.D.

Location Address1360 E HERNDON AVE, SUITE 301Fresno, CA 93720-3326

Mailing Address1360 E Herndon Ave, Suite 301Fresno, CA 93720-3326 · (559) 486-5000 · Fax (559) 439-7854

Phone(559) 486-5000

Fax(559) 439-7854

Sole ProprietorNo

Enumeration DateJuly 2, 2014

Last NPPES UpdateDecember 30, 2021

✔ NPI 1881000404 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in CA · 14939

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

1360 E HERNDON AVE, Fresno, CA 93720

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Allyson Denise Chun O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Medicare enrollment records show Allyson Chun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Eye Medical Clinic Of Fresno, Inc

4.0 mi

Ophthalmology

1360 E HERNDON AVE, SUITE 301
Fresno, CA 93720

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

NPI 1306853452 (559) 486-5000

Permanente Medical Group Inc

120 mi

Internal Medicine

7373 WEST LANE
Stockton, CA 95210

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1548343510 (209) 476-2000

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 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

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$73.16 typical visit price

range $19.28 – $144.60

Typical copayment $18.29 (range $4.82 – $36.15)

Most-billed visit code 99213

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.

ERIC JAMES POULSEN M.D.

Ophthalmology

1360 E HERNDON AVE, STE 201
FRESNO, CA 93720

Fresno County (559) 449-5050

FOGG REMINGTON EYECARE INC

Ophthalmology

1360 E HERNDON AVE, SUITE 401
FRESNO, CA 93720

Fresno County (559) 449-5010

DR. THOMAS PEARSON O.D.

Optometrist

1360 E HERNDON AVE, SUITE 401
FRESNO, CA 93720

Fresno County (559) 449-5010

DR. SHARON SAMRA HIYAMA O.D.

Optometrist

1360 E HERNDON AVE, SUITE 201
FRESNO, CA 93720

Fresno County (559) 449-5050

LARRY RAY LAWRENCE M.D.

Ophthalmology

1360 E HERNDON AVE, STE 201
FRESNO, CA 93720

Fresno County (559) 449-5050

DR. PRABHJOT KAUR SAINI O.D.

Optometrist

1360 E HERNDON AVE, SUITE 301
FRESNO, CA 93720

Fresno County (559) 486-5000

DR. WILLIAM ANDREW MAXWELL M.D.

Ophthalmology

1360 E HERNDON AVE, SUITE 401
FRESNO, CA 93720

Fresno County (559) 449-5010

EYE MEDICAL CLINIC OF FRESNO, INC

Ophthalmology

1360 E HERNDON AVE, SUITE 301
FRESNO, CA 93720

Fresno County (559) 486-5000

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 Allyson Chun's NPI number?

The NPI number for Allyson Chun is 1881000404. It was assigned to this individual provider in the NPPES registry on July 2, 2014.

Where is Allyson Chun located?

Allyson Chun practices at 1360 E Herndon Ave Suite 301, Fresno, CA 93720. The listed phone number is (559) 486-5000.

What is Allyson Chun's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Allyson Chun enrolled in Medicare?

Yes. Allyson Chun is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Allyson Chun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allyson Chun reassigns Medicare benefits to 2 organizations: Eye Medical Clinic Of Fresno, Inc (Fresno, CA) and Permanente Medical Group Inc (Stockton, 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 Allyson Chun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Allyson Chun accept?

Health plans from Providence Health Plan list Allyson Chun as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allyson Chun was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.