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ZACHARY JAMES TOM
NPI 1629605084
Internal Medicine in Torrance, CA

Active since March 25, 2020PECOS Enrolled
1000 W CARSON ST, TORRANCE, CA 90502(310) 222-2345 Get Directions Write a Review

NPPES record last updated: June 24, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 24, 2024, Mar 25, 2020 (2 updates tracked since 2020).

About Zachary James Tom NPPES

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

ZACHARY JAMES TOM (NPI 1629605084) is an individual internal medicine provider in Torrance, California, licensed in California (A184843) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629605084
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameZACHARY JAMES TOM
Location Address1000 W CARSON STTorrance, CA 90502-2059
Mailing Address98-1763 Nahele StAiea, HI 96701-1724 · (808) 398-7344
Phone(310) 222-2345
Sole ProprietorNo
Enumeration DateMarch 25, 2020
Last NPPES UpdateJune 24, 20242 updates tracked since enumeration
NPPES CertifiedJune 24, 2024
✔ NPI 1629605084 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A184843
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1000 W CARSON ST, Torrance, CA 90502
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zachary James Tom 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 Reassignments

2

Medicare enrollment records show Zachary Tom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inpatient Specialists Of California, PC
62 mi
Internal Medicine
2101 N WATERMAN AVE
San Bernardino, CA 92404
  • Reassigned Medicare billing, California enrollment
  • 1,216 clinicians in this Medicare group
NPI 1952792475 (615) 377-5658
Aloha Critical Care Associates LLP
2,557 mi
Critical Care Medicine
2230 LILIHA ST, CRITICAL CARE DEPT
Honolulu, HI 96817
  • Reassigned Medicare billing, Hawaii enrollment
  • 16 clinicians in this Medicare group
NPI 1245286772 (808) 547-6173

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 90502 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

MISS BRITTANY IRVINE M.A.
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
DEPAREMENT OF MANTAL HEALTH
Case Management
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-1648
DINA M MEZA
Nurse Practitioner (Family)
1000 W CARSON ST, HEAD AND NECK BOX 6
TORRANCE, CA 90502
Los Angeles County (310) 222-2741
MARIA GUADALUPE VALADEZ
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (559) 789-1327
ESTEBAN COTA
Specialist
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
MS. DAWN MARIE TLUSTY RN
Registered Nurse (Infusion Therapy)
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-1906
DR. NICOLE MOORE MD
Student in an Organized Health Care Education/Training Program
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (310) 222-2345
KENTON YUJI SAKURAI
Psychiatry & Neurology (Psychiatry)
1000 W CARSON ST
TORRANCE, CA 90502
Los Angeles County (424) 306-4000

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 Zachary Tom's NPI number?

The NPI number for Zachary Tom is 1629605084. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Zachary Tom located?

Zachary Tom practices at 1000 W Carson St, Torrance, CA 90502. The listed phone number is (310) 222-2345.

What is Zachary Tom's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Zachary Tom enrolled in Medicare?

Yes. Zachary Tom is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Zachary Tom's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Tom reassigns Medicare benefits to 2 organizations: Inpatient Specialists Of California, PC (San Bernardino, CA) and Aloha Critical Care Associates LLP (Honolulu, HI). Each 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 Zachary Tom'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 Zachary Tom was last updated on June 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.