NATALIA DIAVATIS PSYD
NPI 1316647027
Psychologist - Clinical in Antioch, CA

Active since March 09, 2023PECOS EnrolledAccepts Medicare Assignment
3454 HILLCREST AVE, ANTIOCH, CA 94531(925) 777-6300 Get Directions Write a Review

NPPES record last updated: July 18, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 18, 2023, Mar 9, 2023 (2 updates tracked since 2023).

About Natalia Diavatis Psyd NPPES

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

NATALIA DIAVATIS PSYD (NPI 1316647027) is an individual clinical provider in Antioch, California, licensed in California (PSY34047) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1316647027
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameNATALIA DIAVATISCredential: PSYD
Location Address3454 HILLCREST AVEAntioch, CA 94531-8238
Mailing Address164 Robles Way # 129Vallejo, CA 94591-8039 · (925) 263-6205
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 9, 2023
Last NPPES UpdateJuly 18, 20232 updates tracked since enumeration
NPPES CertifiedJuly 18, 2023
✔ NPI 1316647027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in CA · PSY34047
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 ListedClinical NeuropsychologistTaxonomy 103G00000X · License PSY34047 (CA)
Also ListedPsychologistTaxonomy 103T00000X · License PSY34047 (CA)
3454 HILLCREST AVE, Antioch, CA 94531

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Natalia Diavatis Psyd 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 ID4688037153
PECOS Enrollment IDI20230831000135
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 Natalia Diavatis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94531 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.

Other Providers at the Same Location NPPES 20

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

Psychologist (Clinical)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychologist (Clinical)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychologist (Clinical)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Social Worker (Clinical)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychologist (Clinical)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychiatry & Neurology (Psychiatry)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychiatry & Neurology (Psychiatry)
3454 HILLCREST AVE
ANTIOCH, CA 94531
Psychiatry & Neurology (Psychiatry)
3454 HILLCREST AVE
ANTIOCH, CA 94531

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 Natalia Diavatis's NPI number?

The NPI number for Natalia Diavatis is 1316647027. It was assigned to this individual provider in the NPPES registry on March 9, 2023.

Where is Natalia Diavatis located?

Natalia Diavatis practices at 3454 Hillcrest Ave, Antioch, CA 94531. The listed phone number is (925) 777-6300.

What is Natalia Diavatis's specialty?

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

Is Natalia Diavatis enrolled in Medicare?

Yes. Natalia Diavatis 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.

Which organization bills Medicare for Natalia Diavatis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Natalia Diavatis reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Natalia Diavatis'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 Natalia Diavatis was last updated on July 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.