1. Home
  2. Directory
  3. California
  4. Oakland
  5. Psychologist
  6. NPI Profile

JOAN DAVIDSON
NPI 1861830820
Psychologist - Clinical in Oakland, CA

Active since June 11, 2013Opted out of Medicare · through Apr 1, 2028
5435 COLLEGE AVE STE 103, OAKLAND, CA 94618(510) 652-4455(510) 380-2988 Get Directions Write a Review

NPPES record last updated: June 11, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Joan Davidson NPPES

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

JOAN DAVIDSON (NPI 1861830820) is an individual clinical provider in Oakland, California, licensed in California (PSY14532) and active in the NPI registry since June 2013. She has opted out of Medicare through April 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1861830820
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameJOAN DAVIDSON
Location Address5435 COLLEGE AVE STE 103Oakland, CA 94618-1590
Mailing Address5435 College Ave Ste 103Oakland, CA 94618-1590 · (510) 652-4455 · Fax (510) 380-2988
Phone(510) 652-4455
Fax(510) 380-2988
Sole ProprietorYes
Enumeration DateJune 11, 2013
✔ NPI 1861830820 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in CA · PSY14532
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
5435 COLLEGE AVE STE 103, Oakland, CA 94618
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Joan Davidson 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 April 1, 2016 through April 1, 2028.

Opt-Out Effective DateApril 1, 2016
Opt-Out In Effect ThroughApril 1, 2028Opt-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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Joan Davidson's NPI number?

The NPI number for Joan Davidson is 1861830820. It was assigned to this individual provider in the NPPES registry on June 11, 2013.

Where is Joan Davidson located?

Joan Davidson practices at 5435 College Ave Ste 103, Oakland, CA 94618. The listed phone number is (510) 652-4455.

What is Joan Davidson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Joan Davidson enrolled in Medicare?

No. Joan Davidson has opted out of Medicare through April 1, 2028. 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.

When was this NPI record last updated?

The NPPES record for Joan Davidson was last updated on June 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.