What is Julie Winfield's NPI number?

Julie Winfield's National Provider Identifier (NPI) is 1982733473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Julie Winfield's specialty?

Julie Winfield is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Julie Winfield located?

Julie Winfield's practice location on file with NPPES is 1652 Tiburon Blvd # 94920, Tiburon, CA 94920-2512.

What is Julie Winfield's phone number?

The practice phone number listed in the NPPES registry for Julie Winfield is (415) 250-1733.

Is Julie Winfield's NPI active?

Yes — Julie Winfield's NPI (1982733473) is active in the NPPES registry as of the last update on 2026-03-02.

IndividualActive

Julie Winfield, M.D.

NPI 1982733473 · Specialist · Tiburon, CA

Julie Winfield, M.D. is a Specialist provider in Tiburon, CA (NPI 1982733473).

Provider details

NPI number: 1982733473
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Credential: M.D.
Sex: Female
Sole proprietor: Yes
License: A55830 (CA)

Specialties & taxonomies

SpecialistPrimary174400000XLicense A55830 (CA)
Other Service Providers

Profile Score

Detailed profile(89/100 index)

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

Registry tenure38% of score
19 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.

Practice location

1652 Tiburon Blvd # 94920

Tiburon, CA 94920-2512

Phone: (415) 250-1733

Street-level locationGet directions

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Mailing address