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JOHN THANASUKARN M.D.
NPI 1144674003
Pediatrics in Downey, CA

Active since April 18, 2016PECOS Enrolled
8530 FIRESTONE BLVD, DOWNEY, CA 90241(562) 867-7999 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Oct 7, 2025, Jul 2, 2020, Jun 5, 2019 (3 updates tracked since 2019).

About John Thanasukarn M.d. NPPES

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

JOHN THANASUKARN M.D. (NPI 1144674003) is an individual pediatrics provider in Downey, California, licensed in California (A156685) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and maintains a secondary practice location in Loma Linda.

NPPES Registry Identity

NPI1144674003
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameJOHN THANASUKARNCredential: M.D.
Location Address8530 FIRESTONE BLVDDowney, CA 90241-4926
Mailing Address54701 File NumberLos Angeles, CA 90074-4701 · (096) 514-3009
Phone(562) 867-7999
Sole ProprietorNo
Enumeration DateApril 18, 2016
Last NPPES UpdateOctober 7, 20253 updates tracked since enumeration
NPPES CertifiedOctober 7, 2025
✔ NPI 1144674003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A156685
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
8530 FIRESTONE BLVD, Downey, CA 90241
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Secondary Practice Location 1

Location 125845 Barton RdLoma Linda, CA 92354-3899 · Phone (909) 558-2828

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John Thanasukarn 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90241 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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 15

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

NICOLE CERVANTES M.D.
Internal Medicine
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 867-7999
DAISY ELIZABETH SOLIS
Community Health Worker
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 862-1000
GUADALUPE ANDRADE
Case Manager/Care Coordinator
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 862-1000
BIANCA J MENDOZA
Community Health Worker
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 862-1000
AMBER HARRIS DC
Chiropractor
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 867-7999
KARINA OCHOA
Community Health Worker
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 862-1000
REBECCA CHOHLAS-WOOD MD
General Practice
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (562) 862-1000
JWCH INSTITUTE, INC
Clinic/Center (Federally Qualified Health Center (FQHC))
8530 FIRESTONE BLVD
DOWNEY, CA 90241
Los Angeles County (323) 562-5813

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 John Thanasukarn's NPI number?

The NPI number for John Thanasukarn is 1144674003. It was assigned to this individual provider in the NPPES registry on April 18, 2016.

Where is John Thanasukarn located?

John Thanasukarn practices at 8530 Firestone Blvd, Downey, CA 90241. The listed phone number is (562) 867-7999.

What is John Thanasukarn's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is John Thanasukarn enrolled in Medicare?

Yes. John Thanasukarn is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Thanasukarn was last updated on October 7, 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.