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DR. ROBERT S. GARDNER M.D.
NPI 1023179850
Psychiatry & Neurology - Psychiatry in Santa Rosa, CA

Active since December 13, 2006Opted out of Medicare · through Sep 15, 2027
525 COLLEGE AVE, 211, SANTA ROSA, CA 95404(707) 575-7647(707) 575-7739 Get Directions Write a Review

NPPES record last updated: September 28, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Robert S. Gardner M.d. NPPES

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

DR. ROBERT S. GARDNER M.D. (NPI 1023179850) is an individual psychiatry provider in Santa Rosa, California, licensed in California (G17718) and active in the NPI registry since December 2006. He has opted out of Medicare through September 15, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1023179850
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ROBERT S. GARDNERCredential: M.D.
Location Address525 COLLEGE AVE, 211Santa Rosa, CA 95404-4118
Mailing Address525 College Ave, 211Santa Rosa, CA 95404-4118 · (707) 575-7647 · Fax (707) 575-7739
Phone(707) 575-7647
Fax(707) 575-7739
Sole ProprietorYes
Enumeration DateDecember 13, 2006
Last NPPES UpdateSeptember 28, 2009
✔ NPI 1023179850 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 · G17718
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 ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X · License G17718 (CA)
525 COLLEGE AVE, Santa Rosa, CA 95404
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Other Names 1

Professional Name (2)Dr. R S Isaac Gardner M.d.

Other Identifiers 2

Medicare ID-Type Unspecified00G177180CA
Medicare UPINA40173CA

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. Robert S. Gardner 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 September 15, 2017 through September 15, 2027.

Opt-Out Effective DateSeptember 15, 2017
Opt-Out In Effect ThroughSeptember 15, 2027Opt-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 95404 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
$187.01 typical visit price
range $63.04 – $187.01
Typical copayment $46.75 (range $15.76 – $46.75)
Most-billed visit code 99205
Established Patient
$77.94 typical visit price
range $21.02 – $153.40
Typical copayment $19.48 (range $5.25 – $38.35)
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.

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 Robert Gardner's NPI number?

The NPI number for Robert Gardner is 1023179850. It was assigned to this individual provider in the NPPES registry on December 13, 2006. The provider is also known as Dr. R S Isaac Gardner M.D..

Where is Robert Gardner located?

Robert Gardner practices at 525 College Ave 211, Santa Rosa, CA 95404. The listed phone number is (707) 575-7647.

What is Robert Gardner's specialty?

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

Is Robert Gardner enrolled in Medicare?

No. Robert Gardner has opted out of Medicare through September 15, 2027. 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.

When was this NPI record last updated?

The NPPES record for Robert Gardner was last updated on September 28, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.