ANDREA LEE YAO M.D.
NPI 1740354059
Internal Medicine - Nephrology in Hayward, CA

Q: What is Andrea Yao's NPI number?

The NPI number for Andrea Yao is 1740354059. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Q: What is Andrea Yao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Andrea Yao was last updated on December 6, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since November 20, 2006PECOS Enrolled

27303 SLEEPY HOLLOW AVE S, HAYWARD, CA 94545(510) 454-1000 Get Directions Write a Review

NPPES record last updated: December 6, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Andrea Lee Yao M.d. NPPES

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

ANDREA LEE YAO M.D. (NPI 1740354059) is an individual nephrology provider in Hayward, California, licensed in California (A76246) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740354059

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameANDREA LEE YAOCredential: M.D.

Location Address27303 SLEEPY HOLLOW AVE SHayward, CA 94545-4203

Mailing Address27303 Sleepy Hollow Ave SHayward, CA 94545-4203 · (510) 454-1000

Phone(510) 454-1000

Sole ProprietorNo

Enumeration DateNovember 20, 2006

Last NPPES UpdateDecember 6, 2021

✔ NPI 1740354059 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · A76246

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

27303 SLEEPY HOLLOW AVE S, Hayward, CA 94545

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Other Identifiers 1

Medicaid00A762460CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Andrea Lee Yao M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 94545 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.