What is Deborah Dayhoff's NPI number?

Deborah Dayhoff's National Provider Identifier (NPI) is 1255415329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Deborah Dayhoff's specialty?

Deborah Dayhoff is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).

Where is Deborah Dayhoff located?

Deborah Dayhoff's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.

What is Deborah Dayhoff's phone number?

The practice phone number listed in the NPPES registry for Deborah Dayhoff is (415) 444-2000.

Does Deborah Dayhoff accept Medicare?

Deborah Dayhoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Deborah Dayhoff's NPI active?

Yes — Deborah Dayhoff's NPI (1255415329) is active in the NPPES registry as of the last update on 2021-12-02.

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Deborah Dayhoff, MD

NPI 1255415329 · Anatomic Pathology Physician · San Rafael, CA

Deborah Dayhoff, MD is a Anatomic Pathology Physician provider in San Rafael, CA (NPI 1255415329).

Provider details

NPI number: 1255415329
Entity type: Individual
Primary specialty: Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: A48287 (CA)

Practice location

99 Montecillo Rd

San Rafael, CA 94903-3308

Phone: (415) 444-2000

Street-level locationGet directions

More CA providers

Mailing address

1800 Harrison St Fl 7

Oakland, CA 94612-3466

Specialties & taxonomies

Anatomic Pathology PhysicianPrimary207ZP0101XLicense A48287 (CA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-10-25
Last updated: 2021-12-02

Frequently asked questions

What is Deborah Dayhoff's NPI number?: Deborah Dayhoff's National Provider Identifier (NPI) is 1255415329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Deborah Dayhoff's specialty?: Deborah Dayhoff is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
Where is Deborah Dayhoff located?: Deborah Dayhoff's practice location on file with NPPES is 99 Montecillo Rd, San Rafael, CA 94903-3308.
What is Deborah Dayhoff's phone number?: The practice phone number listed in the NPPES registry for Deborah Dayhoff is (415) 444-2000.
Does Deborah Dayhoff accept Medicare?: Deborah Dayhoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Deborah Dayhoff's NPI active?: Yes — Deborah Dayhoff's NPI (1255415329) is active in the NPPES registry as of the last update on 2021-12-02.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions