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THOMAS T. PHAM MD
NPI 1598813404
Internal Medicine in Harbor City, CA

Active since January 08, 2007PECOS EnrolledAccepts Medicare Assignment
25825 VERMONT AVE, HARBOR CITY, CA 90710(310) 325-5111 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Thomas T. Pham Md NPPES

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

THOMAS T. PHAM MD (NPI 1598813404) is an individual internal medicine provider in Harbor City, California, licensed in California (G74619) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1991).

NPPES Registry Identity

NPI1598813404
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTHOMAS T. PHAMCredential: MD
Location Address25825 VERMONT AVEHarbor City, CA 90710-3518
Mailing Address25825 Vermont AveHarbor City, CA 90710-3518 · (310) 325-5111
Phone(310) 325-5111
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1991
Enumeration DateJanuary 8, 2007
Last NPPES UpdateDecember 3, 2021
✔ NPI 1598813404 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G74619
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.
25825 VERMONT AVE, Harbor City, CA 90710
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Thomas T. Pham Md 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 ID9931223161
PECOS Enrollment IDI20100825000385
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 Thomas Pham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
Same address
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111

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 90710 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.

SEAN KOH PHARM.D.
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
ALYSSA QUAN PHARM.D.
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2238
JOYHAN JAY SUNG RRT-NPS
Respiratory Therapist, Registered (Neonatal/Pediatrics)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2648
RANDEL R. KING MD
Internal Medicine (Pulmonary Disease)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
TIM TAKESHI SUGIYAMA
Pharmacist
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 517-2239
RYOKEI K. IMAI MD
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
JENNIFER WING-YUN LAM MD
Internal Medicine
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111
CHRISTOPHER LOLACHI MD
Otolaryngology (Plastic Surgery within the Head & Neck)
25825 VERMONT AVE
HARBOR CITY, CA 90710
Los Angeles County (310) 325-5111

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 Pham's NPI number?

The NPI number for Thomas Pham is 1598813404. It was assigned to this individual provider in the NPPES registry on January 8, 2007.

Where is Thomas Pham located?

Thomas Pham practices at 25825 Vermont Ave, Harbor City, CA 90710. The listed phone number is (310) 325-5111.

What is Thomas Pham's specialty?

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

Is Thomas Pham enrolled in Medicare?

Yes. Thomas Pham 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.

Which organization bills Medicare for Thomas Pham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Pham reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor City, 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 Thomas Pham'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 Thomas Pham was last updated on December 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.