ROBERT CLIFFORD GREENBERG M.F.T.
NPI 1891979423
Marriage & Family Therapist in Santa Rosa, CA

Q: What is Robert Greenberg's NPI number?

The NPI number for Robert Greenberg is 1891979423. It was assigned to this individual provider in the NPPES registry on December 18, 2007. The provider is also known as Robert Clifford Greenberg.

Q: What is Robert Greenberg's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: Is Robert Greenberg enrolled in Medicare?

No. Robert Greenberg has opted out of Medicare through March 29, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Robert Greenberg was last updated on December 18, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 December 18, 2007Opted out of Medicare · through Mar 29, 2027

865 3RD ST STE 101, SANTA ROSA, CA 95404(707) 579-7928(707) 824-0911 Get Directions Write a Review

NPPES record last updated: December 18, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Robert Clifford Greenberg M.f.t. NPPES

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

ROBERT CLIFFORD GREENBERG M.F.T. (NPI 1891979423) is an individual marriage & family therapist in Santa Rosa, California, licensed in California (MFC 21447) and active in the NPI registry since December 2007. He has opted out of Medicare through March 29, 2027.

NPPES Registry Identity

NPI1891979423

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameROBERT CLIFFORD GREENBERGCredential: M.F.T.

Location Address865 3RD ST STE 101Santa Rosa, CA 95404-4518

Mailing Address865 3rd St Ste 101Santa Rosa, CA 95404-4518 · (707) 579-7928 · Fax (707) 824-0911

Phone(707) 579-7928

Fax(707) 824-0911

Sole ProprietorYes

Enumeration DateDecember 18, 2007

✔ NPI 1891979423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · MFC 21447

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

865 3RD ST STE 101, Santa Rosa, CA 95404

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Other Names 1

Other Name (5)Robert Clifford Greenberg

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Robert Clifford Greenberg M.f.t. 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 March 29, 2025 through March 29, 2027.

Opt-Out Effective DateMarch 29, 2025

Opt-Out In Effect ThroughMarch 29, 2027Opt-out affidavits renew automatically every two years unless cancelled

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 Greenberg's NPI number?

The NPI number for Robert Greenberg is 1891979423. It was assigned to this individual provider in the NPPES registry on December 18, 2007. The provider is also known as Robert Clifford Greenberg.

Where is Robert Greenberg located?

Robert Greenberg practices at 865 3rd St Ste 101, Santa Rosa, CA 95404. The listed phone number is (707) 579-7928.

What is Robert Greenberg's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Robert Greenberg enrolled in Medicare?

No. Robert Greenberg has opted out of Medicare through March 29, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Robert Greenberg was last updated on December 18, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.