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Active NPI 1649856477 Individual Practitioner Female Practitioner

Dr. Eugenia Paula Custo Greig , MD

Ophthalmology • Palo Alto, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Eugenia Custo Greig, MD is a certified Ophthalmology practicing in Palo Alto, CA. With approximately 5 years of clinical experience since graduating from Yale University School Of Medicine in 2021, Dr. Custo Greig delivers high-quality medical care to the local community at 300 PASTEUR DR.

Dr. Custo Greig is affiliated with Stanford Health Care and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

300 Pasteur Dr

Palo Alto, CA 943052200

Telephone 6507234000
Associated Practice Facility / Clinic
🏢 Stanford Hospital And Clinics Facility NPI 1326205527

Medicare Profile & Education

Medical School

Yale University School Of Medicine

Graduation Year

2021

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Palo Alto, CA

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
5 Yrs -13.0 yrs vs City Avg
City Avg: 18.0 Yrs
State Avg: 29.5 Yrs
Regional Practice Density
46 Specialists

Practicing in Palo Alto, CA (3116 Statewide)

Telehealth Adoption Rate
8.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Custo Greig (5 Years) 5 Yrs
Palo Alto Specialty Average (18.0 Years) 18.0 Yrs

Medical Specialties & State Licenses

CMS Verified: 2026-07-07
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License CA A180994

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.

Hospital & Practice Group Affiliations

Stanford Health Care

300 Pasteur Dr, Stanford, CA 943052200

Phone: 6507234000

Secondary Practice Locations

513 Parnassus Ave # S321

San Francisco, CA 941432205

Phone: 4154761239

39000 Bob Hope Dr

Rancho Mirage, CA 922703202

Phone: 7603403911

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Andrew Picel , MD

Radiology - Vascular & Interventional Radiology

NPI 1003012444

Doctor of Medicine (M.D.)

Dr. Matthew Wright , MD PHD

Psychiatry & Neurology - Psychiatry

NPI 1003041559

MDPHD

Dr. Quazi Al-Tariq , MD

Radiology - Diagnostic Radiology

NPI 1003059395

Doctor of Medicine (M.D.)

Angie Murkins , NP

Nurse Practitioner

NPI 1003061508

Nurse Practitioner

Dr. Jamshid Ghajar , MD PHD

Neurological Surgery

NPI 1003094384

MDPHD

Dr. Yu Kuang Lai , MD

Internal Medicine - Critical Care Medicine

NPI 1003127846

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events
📍
Updated Practice Location July 07, 2025

Registered at 300 PASTEUR DR, PALO ALTO, CA 943052200 (Tel: 6507234000)

📍
Updated Business Mailing Address July 07, 2025

Registered at 300 PASTEUR DR, PALO ALTO, CA 943052200 (Tel: 6507234000)

👤
Provider Name / Credentials Updated July 07, 2025

Recorded as EUGENIA CUSTO GREIG, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 07, 2025

Ophthalmology (License #A180994 in CA)

NPI Profile Active April 08, 2021

NPI status registered as active in NPPES database

📍
Updated Practice Location April 08, 2021

Registered at 513 PARNASSUS AVE # S321, SAN FRANCISCO, CA 941432205 (Tel: 4154761239)

📍
Updated Business Mailing Address April 08, 2021

Registered at 513 PARNASSUS AVE # S321, SAN FRANCISCO, CA 941432205

👤
Provider Name / Credentials Updated April 08, 2021

Recorded as EUGENIA CUSTO GREIG

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 08, 2021

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration March 22, 2021

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1649856477
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 22, 2021
Last Update: July 07, 2026
Sole Proprietor: No

Mailing Address

300 Pasteur Dr

Palo Alto, CA 943052200

Phone: 6507234000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.