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

SEN YANG MD
NPI 1821687062
Ophthalmology in Stanford, CA

Q: What is Sen Yang's NPI number?

The NPI number for Sen Yang is 1821687062. It was assigned to this individual provider in the NPPES registry on January 12, 2021.

Q: What is Sen Yang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Sen Yang was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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 January 12, 2021PECOS Enrolled

300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 28, 2025, Jan 12, 2021 (2 updates tracked since 2021).

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About Sen Yang Md NPPES

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

SEN YANG MD (NPI 1821687062) is an individual ophthalmology provider in Stanford, California, licensed in California (A207793) and active in the NPI registry since January 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Portland, and is a graduate of Oregon Health & Sciences Univ School Of Dentistry (2022).

NPPES Registry Identity

NPI1821687062

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameSEN YANGCredential: MD

Location Address300 PASTEUR DRStanford, CA 94305-2200

Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000

Phone(650) 723-4000

Sole ProprietorNo

Medical School CMSOregon Health & Sciences Univ School Of DentistryGraduated 2022

Enumeration DateJanuary 12, 2021

Last NPPES UpdateJuly 2, 20262 updates tracked since enumeration

NPPES CertifiedJuly 2, 2026

✔ NPI 1821687062 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · A207793

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.

300 PASTEUR DR, Stanford, CA 94305

Open in Google Maps ↗

Secondary Practice Location 1

Location 13181 SW Sam Jackson Park RdPortland, OR 97239-3011 · Phone (626) 215-3289

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sen Yang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID840666962

PECOS Enrollment IDI20260528002662

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 94305 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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

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.

PRISTA CHARUWORN MD

Internal Medicine (Gastroenterology)

300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305

Santa Clara County (650) 723-6661

ANDREW CHARLES PICEL M.D

Radiology (Vascular & Interventional Radiology)

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

MATTHEW A WRIGHT M.D. PH.D.

Psychiatry & Neurology (Psychiatry)

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

DR. QUAZI ZUBAIR AL-TARIQ M.D.

Radiology (Diagnostic Radiology)

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

ANGIE DEE MURKINS NP

Nurse Practitioner

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

DR. JAMSHID GHAJAR MD PHD

Neurological Surgery

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

SARA BAKHTARY M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

300 PASTEUR DR, LANE 235
STANFORD, CA 94305

Santa Clara County (650) 723-5252

YU KUANG LAI MD

Internal Medicine (Critical Care Medicine)

300 PASTEUR DR
STANFORD, CA 94305

Santa Clara County (650) 723-4000

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 Sen Yang's NPI number?

The NPI number for Sen Yang is 1821687062. It was assigned to this individual provider in the NPPES registry on January 12, 2021.

Where is Sen Yang located?

Sen Yang practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Sen Yang's specialty?

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

Is Sen Yang enrolled in Medicare?

Yes. Sen Yang is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sen Yang was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.