RSF OPHTHALMOLOGY, PC
NPI 1497466767
Ophthalmology in San Marcos, CA

Q: What is Rsf Ophthalmology, PC's NPI number?

The NPI number for Rsf Ophthalmology, PC is 1497466767. It was assigned to this organization in the NPPES registry on December 7, 2022.

Q: What is Rsf Ophthalmology, PC's specialty?

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

Active since December 07, 2022

340 RANCHEROS DRIVE, SUITES 164/166, SAN MARCOS, CA 92069(760) 598-0400(760) 290-7044 Get Directions Write a Review

NPPES record last updated: October 21, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Rsf Ophthalmology, Pc NPPES

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

RSF OPHTHALMOLOGY, PC (NPI 1497466767) is a healthcare organization registered as an ophthalmology in San Marcos, California and active in the NPI registry since December 2022. The organization lists Charin Prestera, Coo, as its authorized official.

NPPES Registry Identity

NPI1497466767

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NameRSF OPHTHALMOLOGY, PC

Location Address340 RANCHEROS DRIVE, SUITES 164/166San Marcos, CA 92069

Mailing Address340 Rancheros Drive, Suites 164/166San Marcos, CA 92069 · (760) 598-0400 · Fax (760) 290-7044

Phone(760) 598-0400

Fax(760) 290-7044

Organization SubpartNo

Authorized OfficialCharin PresteraCoo · (760) 576-7929

Enumeration DateDecember 7, 2022

Last NPPES UpdateOctober 21, 2025

NPPES CertifiedOctober 21, 2025

✔ NPI 1497466767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

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.

340 RANCHEROS DRIVE, San Marcos, CA 92069

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rsf Ophthalmology, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 4 clinicians reassign Medicare billing to Rsf Ophthalmology, PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Howard Guan, M.D.

Ophthalmology

NPI 1134427636

340 RANCHEROS DRIVE SUITES 164/166
San Marcos, CA 92069

(760) 598-0400

✔ PECOS✔ Accepts MedicareSame address

Tory Prestera, MD.PHD

Ophthalmology

NPI 1346224557

340 RANCHEROS DRIVE SUITES 164/166
San Marcos, CA 92069

(760) 598-0400

✔ PECOS✔ Accepts MedicareSame address

Kevin Garff

Ophthalmology

NPI 1609258920

200 W ARBOR DR
San Diego, CA 92103

(800) 926-8273

✔ PECOS✔ Accepts Medicare27 mi

John Pyun, MD

Ophthalmology

NPI 1851822639

1289 PINOLE VALLEY RD
Pinole, CA 94564

(510) 724-1768

✔ PECOS✔ Accepts Medicare442 mi

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 Rsf Ophthalmology, PC's NPI number?

The NPI number for Rsf Ophthalmology, PC is 1497466767. It was assigned to this organization in the NPPES registry on December 7, 2022.

Where is Rsf Ophthalmology, PC located?

Rsf Ophthalmology, PC is located at 340 Rancheros Drive Suites 164/166, San Marcos, CA 92069. The listed phone number is (760) 598-0400.

What is Rsf Ophthalmology, PC's specialty?

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

Is Rsf Ophthalmology, PC enrolled in Medicare?

Yes. Rsf Ophthalmology, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rsf Ophthalmology, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Ophthalmology, reassign their Medicare billing to Rsf Ophthalmology, PC. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Rsf Ophthalmology, PC accept?

Health plans from Anthem Blue Cross and Blue Shield and BlueCross BlueShield of Tennessee list Rsf Ophthalmology, PC 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 Rsf Ophthalmology, PC was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.