SOPHIA T. CHEN, M.D. A PROFESSIONAL CORPORATION
NPI 1437558202
Ophthalmology in Oakland, CA

Q: What is Sophia T. Chen, M.D. A Professional Corporation's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Active since August 18, 2014

345 9TH ST, SUITE 204, OAKLAND, CA 94607(510) 350-8741 Get Directions Write a Review

NPPES record last updated: August 18, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Sophia T. Chen, M.d. A Professional Corporation NPPES

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

SOPHIA T. CHEN, M.D. A PROFESSIONAL CORPORATION (NPI 1437558202) is a healthcare organization registered as an ophthalmology in Oakland, California and active in the NPI registry since August 2014. The organization lists Sophia T Chen, Physician, as its authorized official.

NPPES Registry Identity

NPI1437558202

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NameSOPHIA T. CHEN, M.D. A PROFESSIONAL CORPORATION

Location Address345 9TH ST, SUITE 204Oakland, CA 94607-6522

Mailing Address345 9th St, Suite 204Oakland, CA 94607-6522 · (510) 350-8741

Phone(510) 350-8741

Organization SubpartNo

Authorized OfficialSophia T ChenPhysician · (510) 350-8741

Enumeration DateAugust 18, 2014

✔ NPI 1437558202 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · A82768

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

345 9TH ST, Oakland, CA 94607

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sophia T. Chen, M.d. A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sophia T. Chen, M.D. A Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sophia Chen, M.D.

Ophthalmology

NPI 1033183934

345 9TH ST SUITE 204
Oakland, CA 94607

(510) 350-8741

✔ 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 Sophia T. Chen, M.D. A Professional Corporation's NPI number?

The NPI number for Sophia T. Chen, M.D. A Professional Corporation is 1437558202. It was assigned to this organization in the NPPES registry on August 18, 2014.

Where is Sophia T. Chen, M.D. A Professional Corporation located?

Sophia T. Chen, M.D. A Professional Corporation is located at 345 9th St Suite 204, Oakland, CA 94607. The listed phone number is (510) 350-8741.

What is Sophia T. Chen, M.D. A Professional Corporation's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Sophia T. Chen, M.D. A Professional Corporation enrolled in Medicare?

Yes. Sophia T. Chen, M.D. A Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sophia T. Chen, M.D. A Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Sophia T. Chen, M.D. A Professional Corporation. 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 Sophia T. Chen, M.D. A Professional Corporation was last updated on August 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.