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DR. LIANA NICULINA TANASE M.D.
NPI 1124070560
Psychiatry & Neurology - Psychiatry in Ontario, CA

Active since May 16, 2006PECOS EnrolledAccepts Medicare Assignment
855 N EUCLID AVE OFC, ONTARIO, CA 91762(909) 983-2020(909) 983-6847 Get Directions Write a Review

NPPES record last updated: March 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Liana Niculina Tanase M.d. NPPES

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

DR. LIANA NICULINA TANASE M.D. (NPI 1124070560) is an individual psychiatry provider in Ontario, California, licensed in California (A79427) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1124070560
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. LIANA NICULINA TANASECredential: M.D.
Location Address855 N EUCLID AVE OFCOntario, CA 91762-2729
Mailing Address855 N Euclid Ave OfcOntario, CA 91762-2729 · (909) 983-2020 · Fax (909) 983-6847
Phone(909) 983-2020
Fax(909) 983-6847
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateMay 16, 2006
Last NPPES UpdateMarch 1, 2021
NPPES CertifiedMarch 1, 2021
✔ NPI 1124070560 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A79427
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
855 N EUCLID AVE OFC, Ontario, CA 91762
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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

Dr. Liana Niculina Tanase M.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 ID3678505245
PECOS Enrollment IDI20050902000510
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 Liana Tanase reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

West End Family Counseling Service
Same address
Community/Behavioral Health
855 N EUCLID AVE
Ontario, CA 91762
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1942323563 (909) 983-2020

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 91762 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
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
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 Liana Tanase's NPI number?

The NPI number for Liana Tanase is 1124070560. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Where is Liana Tanase located?

Liana Tanase practices at 855 N Euclid Ave Ofc, Ontario, CA 91762. The listed phone number is (909) 983-2020.

What is Liana Tanase's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Liana Tanase enrolled in Medicare?

Yes. Liana Tanase 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 Liana Tanase's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Liana Tanase reassigns Medicare benefits to West End Family Counseling Service (Ontario, 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 Liana Tanase'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 Liana Tanase was last updated on March 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.