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IVAN DANIEL MAYOR MD
NPI 1225615594
Psychiatry & Neurology - Psychiatry in Palo Alto, CA

Active since March 24, 2021PECOS Enrolled
401 QUARRY RD, PALO ALTO, CA 94304(650) 725-5591 Get Directions Write a Review

NPPES record last updated: January 15, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Ivan Daniel Mayor Md NPPES

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

IVAN DANIEL MAYOR MD (NPI 1225615594) is an individual psychiatry provider in Palo Alto, California, licensed in Utah (14196745-1205) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225615594
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameIVAN DANIEL MAYORCredential: MD
Location Address401 QUARRY RDPalo Alto, CA 94304-1419
Mailing Address1114 Village Dr Apt 11Belmont, CA 94002-3446
Phone(650) 725-5591
Sole ProprietorNo
Enumeration DateMarch 24, 2021
Last NPPES UpdateJanuary 15, 2025
NPPES CertifiedJanuary 15, 2025
✔ NPI 1225615594 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 UT · 14196745-1205
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, Palo Alto, CA 94304
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Regence BlueCross BlueShield of Utah, University of Utah Health Plans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ivan Daniel Mayor 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 20

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

KIMBERLY ANN WILSON PH.D.
Psychologist (Clinical)
401 QUARRY RD, PSYCHIATRY AND BEHAVIORAL SCIENCES
PALO ALTO, CA 94304
Santa Clara County (650) 723-6308
DR. KEVIN RONALD ROSI M.D.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
401 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 724-3386
DR. ROBIN F APPLE PH.D.
Psychologist
401 QUARRY RD, STANFORD PSYCHIATRY BEHAVIORAL MEDICINE
PALO ALTO, CA 94304
Santa Clara County (650) 723-2196
DR. JENIFER CULVER PH.D.
Psychologist (Clinical)
401 QUARRY RD, DEPARTMENT OF PSYCHIATRY
PALO ALTO, CA 94304
Santa Clara County (650) 723-2493
DR. CHRISTINE CAROL GRAY PHD
Psychologist
401 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 725-5722
DR. DAVID SPIEGEL M.D.
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD, STANFORD MEDICAL CENTER
PALO ALTO, CA 94304
Santa Clara County (650) 723-6421
DR. JAMES D LOCK MD, PH.D
Psychiatry & Neurology (Child & Adolescent Psychiatry)
401 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-5473
DR. JULIE BONNER M.D.
Psychiatry & Neurology (Psychiatry)
401 QUARRY RD
PALO ALTO, CA 94304
Santa Clara County (650) 723-8335

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 Ivan Mayor's NPI number?

The NPI number for Ivan Mayor is 1225615594. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Where is Ivan Mayor located?

Ivan Mayor practices at 401 Quarry Rd, Palo Alto, CA 94304. The listed phone number is (650) 725-5591.

What is Ivan Mayor's specialty?

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

Is Ivan Mayor enrolled in Medicare?

Yes. Ivan Mayor is registered in the Medicare PECOS enrollment system.

What insurance does Ivan Mayor accept?

Health plans from BridgeSpan Health Company, Regence BlueCross BlueShield of Utah and University of Utah Health Plans list Ivan Mayor as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ivan Mayor was last updated on January 15, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.