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FREDA CHIN, O.D.,INC
NPI 1538246715
Optometrist in Patterson, CA

Active since November 01, 2006
46 S. DEL PUERTO AVE, SUITE A, PATTERSON, CA 95363(209) 892-2161 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Freda Chin, O.d.,inc NPPES

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

FREDA CHIN, O.D.,INC (NPI 1538246715) is a healthcare organization registered as an optometrist in Patterson, California and active in the NPI registry since November 2006. The organization lists Freda Chin, Optometrist, as its authorized official.

NPPES Registry Identity

NPI1538246715
Entity TypeOrganization
Primary Taxonomy152W00000X
Legal Business NameFREDA CHIN, O.D.,INC
Location Address46 S. DEL PUERTO AVE, SUITE APatterson, CA 95363-2518
Mailing Address46 S. Del Puerto Ave, Suite APatterson, CA 95363-2518 · (209) 892-2161
Phone(209) 892-2161
Organization SubpartNo
Authorized OfficialFreda ChinOptometrist · (209) 892-2161
Enumeration DateNovember 1, 2006
Last NPPES UpdateJuly 21, 2022
✔ NPI 1538246715 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 · 10755T
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.
46 S. DEL PUERTO AVE, Patterson, CA 95363
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Other Identifiers 1

MedicaidSD0107551CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Freda Chin, O.d.,inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20070125000493Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Freda Chin, O.D.,inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Freda Chin, O.D.
Optometry
NPI 1982645420
46 S. DEL PUERTO AVE SUITE A
Patterson, CA 95363
(209) 892-2161
✔ PECOS✔ Accepts MedicareSame address

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

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 Freda Chin, O.D.,inc's NPI number?

The NPI number for Freda Chin, O.D.,inc is 1538246715. It was assigned to this organization in the NPPES registry on November 1, 2006.

Where is Freda Chin, O.D.,inc located?

Freda Chin, O.D.,inc is located at 46 S. Del Puerto Ave Suite A, Patterson, CA 95363. The listed phone number is (209) 892-2161.

What is Freda Chin, O.D.,inc's specialty?

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

Is Freda Chin, O.D.,inc enrolled in Medicare?

Yes. Freda Chin, O.D.,inc is registered in the Medicare PECOS enrollment system.

When is Freda Chin, O.D.,inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Freda Chin, O.D.,inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Freda Chin, O.D.,inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Freda Chin, O.D.,inc was last updated on July 21, 2022. 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.