DR. IGOR WEISZ M.D.
NPI 1417070822
Psychiatry & Neurology - Psychiatry in Greenbrae, CA

Q: What is Igor Weisz's NPI number?

The NPI number for Igor Weisz is 1417070822. It was assigned to this individual provider in the NPPES registry on April 9, 2007. The provider is also known as Dr. Igor Weisz M.D..

Q: What is Igor Weisz's specialty?

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

Q: Is Igor Weisz enrolled in Medicare?

No. Igor Weisz has opted out of Medicare through February 3, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Igor Weisz was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.

Active since April 09, 2007Opted out of Medicare · through Feb 3, 2028

250 BON AIR RD, GREENBRAE, CA 94904(415) 499-6835(415) 507-4113 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Igor Weisz M.d. NPPES

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

DR. IGOR WEISZ M.D. (NPI 1417070822) is an individual psychiatry provider in Greenbrae, California, licensed in California (A53529) and active in the NPI registry since April 2007. He has opted out of Medicare through February 3, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1417070822

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. IGOR WEISZCredential: M.D.

Location Address250 BON AIR RDGreenbrae, CA 94904-1702

Mailing Address250 Bon Air RoadGreenbrae, CA 94904-1702 · (415) 499-6835 · Fax (415) 507-4113

Phone(415) 499-6835

Fax(415) 507-4113

Sole ProprietorNo

Enumeration DateApril 9, 2007

Last NPPES UpdateMarch 7, 2023

✔ NPI 1417070822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A53529

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.

250 BON AIR RD, Greenbrae, CA 94904

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Other Names 1

Professional Name (2)Dr. Igor Weisz M.d.

Other Identifiers 1

OtherA53529CA · Ca License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Igor Weisz M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 3, 2026 through February 3, 2028.

Opt-Out Effective DateFebruary 3, 2026

Opt-Out In Effect ThroughFebruary 3, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94904 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

$202.63 typical visit price

range $69.07 – $202.63

Typical copayment $50.65 (range $17.26 – $50.65)

Most-billed visit code 99205

Established Patient

$85.00 typical visit price

range $23.44 – $166.64

Typical copayment $21.25 (range $5.86 – $41.66)

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.

MESKEREM DABA RN, BSN

Registered Nurse (Psychiatric/Mental Health)

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 473-6666

ALEC CHANG D.O.

Psychiatry & Neurology (Psychiatry)

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 473-6835

MARIN HOSPITALIST MEDICAL GROUP, INC.

Internal Medicine

250 BON AIR RD, 3RD FLOOR
GREENBRAE, CA 94904

Marin County (415) 925-7545

DR. STEPHEN C ALLISON M.D.

Psychiatry & Neurology (Psychiatry)

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 925-7663

ANNIE LINN STODDARD

Rehabilitation Practitioner

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 473-6835

SARENA NAPIER ASW

Counselor (Mental Health)

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 473-6619

JULIET LIANNE HUNTINGTON CNM

Advanced Practice Midwife

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 925-7010

ZAMBIA RICHEA PLAYER RN

Registered Nurse

250 BON AIR RD
GREENBRAE, CA 94904

Marin County (415) 473-6666

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 Igor Weisz's NPI number?

The NPI number for Igor Weisz is 1417070822. It was assigned to this individual provider in the NPPES registry on April 9, 2007. The provider is also known as Dr. Igor Weisz M.D..

Where is Igor Weisz located?

Igor Weisz practices at 250 Bon Air Rd, Greenbrae, CA 94904. The listed phone number is (415) 499-6835.

What is Igor Weisz's specialty?

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

Is Igor Weisz enrolled in Medicare?

No. Igor Weisz has opted out of Medicare through February 3, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Igor Weisz accept?

Health plans from Providence Health Plan list Igor Weisz 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 Igor Weisz was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.