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CHAD YORK LEWIS MD, MPH
NPI 1407424187
Ophthalmology in Palo Alto, CA

Active since June 17, 2021PECOS Enrolled
300 PASTEUR DR, PALO ALTO, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: July 7, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 7, 2025, Feb 14, 2022, Jun 17, 2021 (3 updates tracked since 2021).

About Chad York Lewis Md, Mph NPPES

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

CHAD YORK LEWIS MD, MPH (NPI 1407424187) is an individual ophthalmology provider in Palo Alto, California, licensed in California (A2029132) and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Iowa City, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1407424187
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameCHAD YORK LEWISCredential: MD, MPH
Location Address300 PASTEUR DRPalo Alto, CA 94305-2200
Mailing Address300 Pasteur DrPalo Alto, CA 94305-2200 · (650) 723-4000
Phone(650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJune 17, 2021
Last NPPES UpdateJuly 7, 20253 updates tracked since enumeration
NPPES CertifiedJuly 7, 2025
✔ NPI 1407424187 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in CA · A2029132✔ Licensed in IA · R-12259
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License R-12259 (IA)
300 PASTEUR DR, Palo Alto, CA 94305
Open in Google Maps ↗

Secondary Practice Location 1

Location 1200 Hawkins DrIowa City, IA 52242-1009 · Phone (319) 353-8585

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chad York Lewis Md, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5597168708
PECOS Enrollment IDI20250618003139
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 Chad Lewis's NPI number?

The NPI number for Chad Lewis is 1407424187. It was assigned to this individual provider in the NPPES registry on June 17, 2021.

Where is Chad Lewis located?

Chad Lewis practices at 300 Pasteur Dr, Palo Alto, CA 94305. The listed phone number is (650) 723-4000.

What is Chad Lewis's specialty?

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

Is Chad Lewis enrolled in Medicare?

Yes. Chad Lewis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Chad Lewis was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.