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THALIE MARISSA TIMSIT PA-C
NPI 1447040548
Physician Assistant in San Diego, CA

Active since May 12, 2025PECOS EnrolledAccepts Medicare Assignment
555 W C ST STE 102, SAN DIEGO, CA 92101(858) 554-1212(858) 795-1195 Get Directions Write a Review

NPPES record last updated: December 4, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 4, 2025, May 12, 2025 (2 updates tracked since 2025).

About Thalie Marissa Timsit Pa-c NPPES

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

THALIE MARISSA TIMSIT PA-C (NPI 1447040548) is an individual physician assistant in San Diego, California, licensed in California (66462) and active in the NPI registry since May 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1447040548
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameTHALIE MARISSA TIMSITCredential: PA-C
Location Address555 W C ST STE 102San Diego, CA 92101-8470
Mailing Address9850 Genesee Ave Ste 320La Jolla, CA 92037-1208 · (858) 554-1212 · Fax (858) 795-1195
Phone(858) 554-1212
Fax(858) 795-1195
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateMay 12, 2025
Last NPPES UpdateDecember 4, 20252 updates tracked since enumeration
NPPES CertifiedDecember 4, 2025
✔ NPI 1447040548 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · 66462
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
555 W C ST STE 102, San Diego, CA 92101
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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

Thalie Marissa Timsit Pa-c 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 ID1557872058
PECOS Enrollment IDI20250612002369
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 92101 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
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 2

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

OANA GRIGORAS PICKERING PA-C
Physician Assistant
555 W C ST STE 102
SAN DIEGO, CA 92101
San Diego County (858) 554-1212
MONICA PERLMAN MD INC.
Clinic/Center (Urgent Care)
555 W C ST STE 102
SAN DIEGO, CA 92101
San Diego County (858) 333-4977

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 Thalie Timsit's NPI number?

The NPI number for Thalie Timsit is 1447040548. It was assigned to this individual provider in the NPPES registry on May 12, 2025.

Where is Thalie Timsit located?

Thalie Timsit practices at 555 W C St Ste 102, San Diego, CA 92101. The listed phone number is (858) 554-1212.

What is Thalie Timsit's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Thalie Timsit enrolled in Medicare?

Yes. Thalie Timsit 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 Thalie Timsit was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.