DR. ROBERT P DIDIER D.D.S. - NPI 1780805671 - Specialist in Santa Rosa, CA

Q: What is Robert Didier's NPI number?

The NPI number for Robert Didier is 1780805671. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Q: What is Robert Didier's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: Is Robert Didier enrolled in Medicare?

No. Robert Didier has opted out of Medicare through June 23, 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.

Q: When was this NPI record last updated?

The NPPES record for Robert Didier was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

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About Dr. Robert P Didier D.d.s. NPPES

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

DR. ROBERT P DIDIER D.D.S. (NPI 1780805671) is an individual specialist in Santa Rosa, California, licensed in California (22065) and active in the NPI registry since May 2007. He has opted out of Medicare through June 23, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1780805671

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. ROBERT P DIDIERCredential: D.D.S.

Location Address2305 MENDOCINO AVE STE ASanta Rosa, CA 95403-3157

Mailing Address1130 Monticello RdNapa, CA 94558-2031 · (707) 265-6892 · Fax (707) 253-3988

Phone(707) 525-1501

Fax(707) 525-0315

Sole ProprietorYes

Enumeration DateMay 1, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1780805671 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · 22065

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Also ListedDentist · General PracticeTaxonomy 1223G0001X · License 22065 (CA)

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. Robert P Didier D.d.s. 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 June 23, 2015 through June 23, 2027.

Opt-Out Effective DateJune 23, 2015

Opt-Out In Effect ThroughJune 23, 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.

Other Providers at the Same Location NPPES 7

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

DR. ROBERT W ERLACH DDS

Dentist (General Practice)