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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MR. CHARLES BRADLEY BAY MD
NPI 1295475762
Psychiatry & Neurology - Psychiatry in Palo Alto, CA

Active since March 31, 2022PECOS Enrolled
401 QUARRY RD RM 2208, PALO ALTO, CA 94304(404) 202-7963 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 16, 2026, Jul 22, 2024 (2 updates tracked since 2024).

About Mr. Charles Bradley Bay Md NPPES

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

MR. CHARLES BRADLEY BAY MD (NPI 1295475762) is an individual psychiatry provider in Palo Alto, California, licensed in California (190516) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295475762
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMR. CHARLES BRADLEY BAYCredential: MD
Location Address401 QUARRY RD RM 2208Palo Alto, CA 94304-1419
Mailing Address401 Quarry Rd Rm 2208Palo Alto, CA 94304-1419
Phone(404) 202-7963
Sole ProprietorNo
Enumeration DateMarch 31, 2022
Last NPPES UpdateJuly 16, 20262 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
✔ NPI 1295475762 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · 190516
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
401 QUARRY RD RM 2208, Palo Alto, CA 94304
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Charles Bradley Bay Md 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 94304 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
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. NICOLAS GAREL MD
Psychiatry & Neurology (Addiction Medicine)
401 QUARRY RD RM 2208
PALO ALTO, CA 94304
Santa Clara County (650) 498-9111
ARMAAN ZARE MD
Student in an Organized Health Care Education/Training Program
401 QUARRY RD RM 2208
PALO ALTO, CA 94304
Santa Clara County (650) 497-5966

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 Charles Bay's NPI number?

The NPI number for Charles Bay is 1295475762. It was assigned to this individual provider in the NPPES registry on March 31, 2022.

Where is Charles Bay located?

Charles Bay practices at 401 Quarry Rd Rm 2208, Palo Alto, CA 94304. The listed phone number is (404) 202-7963.

What is Charles Bay's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Charles Bay enrolled in Medicare?

Yes. Charles Bay is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Charles Bay was last updated on July 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.