DR. MARIA LOURDES AGUSTIN TIAMSON-KASSAB M.D.
NPI 1760425987
Psychiatry & Neurology - Psychiatry in San Diego, CA

Q: What is Maria Lourdes Tiamson-kassab's NPI number?

The NPI number for Maria Lourdes Tiamson-kassab is 1760425987. It was assigned to this individual provider in the NPPES registry on June 14, 2006. The provider is also known as Dr. Maria Lourdes Agustin Tiamson M.D..

Q: What is Maria Lourdes Tiamson-kassab's specialty?

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

Active since June 14, 2006PECOS Enrolled

3350 LA JOLLA VILLAGE DR, VA SAN DIEGO HEALTHCARE SYSTEM, SAN DIEGO, CA 92161(858) 552-8585(858) 642-6442 Get Directions Write a Review

NPPES record last updated: March 19, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Maria Lourdes Agustin Tiamson-kassab M.d. NPPES

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

DR. MARIA LOURDES AGUSTIN TIAMSON-KASSAB M.D. (NPI 1760425987) is an individual psychiatry provider in San Diego, California, licensed in New York (188266) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1760425987

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameDR. MARIA LOURDES AGUSTIN TIAMSON-KASSABCredential: M.D.

Location Address3350 LA JOLLA VILLAGE DR, VA SAN DIEGO HEALTHCARE SYSTEMSan Diego, CA 92161-0002

Mailing Address3350 La Jolla Village Dr, Va San Diego Healthcare SystemSan Diego, CA 92161-0002 · (858) 552-8585 · Fax (858) 642-6442

Phone(858) 552-8585

Fax(858) 642-6442

Sole ProprietorYes

Enumeration DateJune 14, 2006

Last NPPES UpdateMarch 19, 2010

✔ NPI 1760425987 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 NY · 188266

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.

3350 LA JOLLA VILLAGE DR, San Diego, CA 92161

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Other Names 1

Former Name (1)Dr. Maria Lourdes Agustin Tiamson M.d.

Other Identifiers 3

Medicare UPINF28603NY

Medicaid01345284NY

Medicare ID-Type Unspecified62K701NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Maria Lourdes Agustin Tiamson-kassab M.d. 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 Maria Lourdes Tiamson-kassab reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California

9.2 mi

Psychiatry

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
220 clinicians in this Medicare group

NPI 1508968967 (800) 926-8273

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 92161 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

$184.71 typical visit price

range $62.10 – $184.71

Typical copayment $46.17 (range $15.52 – $46.17)

Most-billed visit code 99205

Established Patient

$76.87 typical visit price

range $20.62 – $151.42

Typical copayment $19.21 (range $5.15 – $37.85)

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.

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.

DR. JENNIFER ANNE FREIMUND M.D.

Internal Medicine (Geriatric Medicine)

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 552-7475

MRS. LINDA REID HOLLAND PT

Physical Therapist

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 552-7487

DR. JONATHAN M MEYER M.D.

Psychiatry & Neurology (Psychiatry)

3350 LA JOLLA VILLAGE DR, 116-A
SAN DIEGO, CA 92161

San Diego County (858) 642-3570

ANDREW BISMARK

Psychologist (Clinical)

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 245-5825

LORNA FRANCES DOUCETTE

Pharmacist (Psychiatric)

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (828) 545-5072

MS. LISA ARAI PHARM.D.

Pharmacist (Psychiatric)

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 552-8585

HAYLEY MARIE HOWELLS MPT

Physical Therapist

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 642-3138

JOAN MARIE FITZGERALD RN, MSN, FNP

Nurse Practitioner (Family)

3350 LA JOLLA VILLAGE DR
SAN DIEGO, CA 92161

San Diego County (858) 552-8585

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 Maria Lourdes Tiamson-kassab's NPI number?

The NPI number for Maria Lourdes Tiamson-kassab is 1760425987. It was assigned to this individual provider in the NPPES registry on June 14, 2006. The provider is also known as Dr. Maria Lourdes Agustin Tiamson M.D..

Where is Maria Lourdes Tiamson-kassab located?

Maria Lourdes Tiamson-kassab practices at 3350 La Jolla Village Dr VA San Diego Healthcare System, San Diego, CA 92161. The listed phone number is (858) 552-8585.

What is Maria Lourdes Tiamson-kassab's specialty?

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

Is Maria Lourdes Tiamson-kassab enrolled in Medicare?

Yes. Maria Lourdes Tiamson-kassab is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Lourdes Tiamson-kassab's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Lourdes Tiamson-kassab reassigns Medicare benefits to Regents Of The University Of California (San Diego, 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 Maria Lourdes Tiamson-kassab'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 Maria Lourdes Tiamson-kassab was last updated on March 19, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.