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THOMAS GRASS
NPI 1457126476
Physician Assistant in Tracy, CA

Active since November 20, 2023PECOS Enrolled
530 W EATON AVE STE B, TRACY, CA 95376(209) 835-9029 Get Directions Write a Review

NPPES record last updated: March 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 27, 2026, Mar 24, 2025, Nov 20, 2023 (3 updates tracked since 2023).

About Thomas Grass NPPES

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

THOMAS GRASS (NPI 1457126476) is an individual physician assistant in Tracy, California, licensed in California (68101) and active in the NPI registry since November 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457126476
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameTHOMAS GRASS
Location Address530 W EATON AVE STE BTracy, CA 95376-3454
Mailing Address530 W Eaton Ave Ste BTracy, CA 95376-3454 · (669) 252-6848
Phone(209) 835-9029
Sole ProprietorNo
Enumeration DateNovember 20, 2023
Last NPPES UpdateMarch 27, 20263 updates tracked since enumeration
NPPES CertifiedMarch 27, 2026
✔ NPI 1457126476 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 · 68101
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.
530 W EATON AVE STE B, Tracy, CA 95376
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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 (PECOS)

Thomas Grass 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95376 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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.

DR. SUSHMA INDUKURI MD
Pediatrics
530 W EATON AVE STE B
TRACY, CA 95376
San Joaquin County (209) 835-9029
SUSHMA INDUKURI MEDICAL CORPORATION
Pediatrics
530 W EATON AVE STE B
TRACY, CA 95376
San Joaquin County (209) 445-9427

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 Thomas Grass's NPI number?

The NPI number for Thomas Grass is 1457126476. It was assigned to this individual provider in the NPPES registry on November 20, 2023.

Where is Thomas Grass located?

Thomas Grass practices at 530 W Eaton Ave Ste B, Tracy, CA 95376. The listed phone number is (209) 835-9029.

What is Thomas Grass's specialty?

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

Is Thomas Grass enrolled in Medicare?

Yes. Thomas Grass is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Thomas Grass was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.