CATHERINE FAN DIONISIO PH.D.
NPI 1730365248
Psychologist - Clinical in Walnut Creek, CA

Q: What is Catherine Dionisio's NPI number?

The NPI number for Catherine Dionisio is 1730365248. It was assigned to this individual provider in the NPPES registry on January 15, 2008. The provider is also known as Catherine Kay Fan.

Q: What is Catherine Dionisio's specialty?

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

Active since January 15, 2008PECOS EnrolledAccepts Medicare Assignment

710 S BROADWAY STE 300, WALNUT CREEK, CA 94596(925) 295-4145 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 11, 2022, Mar 17, 2018, Dec 6, 2017 (3 updates tracked since 2017).

On this page

About Catherine Fan Dionisio Ph.d. NPPES

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

CATHERINE FAN DIONISIO PH.D. (NPI 1730365248) is an individual clinical provider in Walnut Creek, California, licensed in California (PSY26492) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, maintains a secondary practice location in Ann Arbor, and is a graduate of California School Of Podiatric Medicine (2011).

NPPES Registry Identity

NPI1730365248

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameCATHERINE FAN DIONISIOCredential: PH.D.

Location Address710 S BROADWAY STE 300Walnut Creek, CA 94596-5229

Mailing Address710 S Broadway Ste 300Walnut Creek, CA 94596-5229

Phone(925) 295-4145

Sole ProprietorNo

Medical School CMSCalifornia School Of Podiatric MedicineGraduated 2011

Enumeration DateJanuary 15, 2008

Last NPPES UpdateJanuary 11, 20223 updates tracked since enumeration

✔ NPI 1730365248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY26492

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

710 S BROADWAY STE 300, Walnut Creek, CA 94596

Open in Google Maps ↗

Other Names 1

Other Name (5)Catherine Kay Fan

Secondary Practice Location 1

Location 1530 Church St, Suite 2463,Ann Arbor, MI 48109-1043 · Phone (734) 764-3471

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Catherine Fan Dionisio Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820357783

PECOS Enrollment IDI20180122003013

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94596 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.

Leave this field empty

Other Providers at the Same Location NPPES 10

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

MR. MATTHEW TERRY HAYNES

Social Worker (Clinical)

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-3980

DR. SHELBY KAROLINE SMITH PSY.D.

Psychologist (Addiction (Substance Use Disorder))

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-2960

JAMIE ASHLEY WILLIAMS LCSW

Social Worker (Clinical)

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

MR. STEWART PROCTOR PH.D.

Psychologist (Clinical)

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-5937

MR. JASON ALLEN SPENSER LCSW

Social Worker (Clinical)

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

MEREDITH PORTER PSYD

Psychologist

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (252) 954-6199

DR. KELLY M BUSH PSY.D.

Psychologist

710 S BROADWAY STE 300, DEPT OF MENTAL HEALTH
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4145

MRS. ANNE RACHEL SERRANO GUIJO N.P.

Nurse Practitioner (Family)

710 S BROADWAY STE 300
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-6783

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 Catherine Dionisio's NPI number?

The NPI number for Catherine Dionisio is 1730365248. It was assigned to this individual provider in the NPPES registry on January 15, 2008. The provider is also known as Catherine Kay Fan.

Where is Catherine Dionisio located?

Catherine Dionisio practices at 710 S Broadway Ste 300, Walnut Creek, CA 94596. The listed phone number is (925) 295-4145.

What is Catherine Dionisio's specialty?

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

Is Catherine Dionisio enrolled in Medicare?

Yes. Catherine Dionisio is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Catherine Dionisio 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.