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DR. SYLVANNA GAVIA CALLAWAY BRENNAN PHD
NPI 1043373970
Psychologist - Clinical Child & Adolescent in San Francisco, CA

Active since December 19, 2006PECOS Enrolled
4141 GEARY BLVD FL 4, 411, SAN FRANCISCO, CA 94118(415) 833-7112(415) 833-4765 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Sylvanna Gavia Callaway Brennan Phd NPPES

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

DR. SYLVANNA GAVIA CALLAWAY BRENNAN PHD (NPI 1043373970) is an individual clinical child & adolescent provider in San Francisco, California, licensed in California (PSY20417) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043373970
Entity TypeIndividualFemale
Primary Taxonomy103TC2200X
Provider Legal NameDR. SYLVANNA GAVIA CALLAWAY BRENNANCredential: PHD
Location Address4141 GEARY BLVD FL 4, 411San Francisco, CA 94118-3118
Mailing Address4141 Geary Blvd Fl 4, 411San Francisco, CA 94118-3118 · (415) 833-7112 · Fax (415) 833-4765
Phone(415) 833-7112
Fax(415) 833-4765
Sole ProprietorNo
Enumeration DateDecember 19, 2006
Last NPPES UpdateJanuary 11, 2022
✔ NPI 1043373970 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers
Taxonomy Code103TC2200X
License✔ Licensed in CA · PSY20417
Definition
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.
4141 GEARY BLVD FL 4, San Francisco, CA 94118
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Other Names 1

Other Name (5)Dr. Gavia Callaway Brennan Phd

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sylvanna Gavia Callaway Brennan Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sylvanna Callaway Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
1.3 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Sylvanna Callaway Brennan's NPI number?

The NPI number for Sylvanna Callaway Brennan is 1043373970. It was assigned to this individual provider in the NPPES registry on December 19, 2006. The provider is also known as Dr. Gavia Callaway Brennan Phd.

Where is Sylvanna Callaway Brennan located?

Sylvanna Callaway Brennan practices at 4141 Geary Blvd Fl 4 411, San Francisco, CA 94118. The listed phone number is (415) 833-7112.

What is Sylvanna Callaway Brennan's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Is Sylvanna Callaway Brennan enrolled in Medicare?

Yes. Sylvanna Callaway Brennan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sylvanna Callaway Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sylvanna Callaway Brennan reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sylvanna Callaway Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sylvanna Callaway Brennan was last updated on January 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.