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DR. JOHN THE PHONG NGUYEN M.D.
NPI 1902868359
Internal Medicine in Crockett, CA

Active since April 03, 2006PECOS EnrolledAccepts Medicare Assignment
821 LORING AVE, CROCKETT, CA 94525(510) 219-4701 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Dr. John The Phong Nguyen M.d. NPPES

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

DR. JOHN THE PHONG NGUYEN M.D. (NPI 1902868359) is an individual internal medicine provider in Crockett, California, licensed in Texas (M0511) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1998).

NPPES Registry Identity

NPI1902868359
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN THE PHONG NGUYENCredential: M.D.
Location Address821 LORING AVECrockett, CA 94525-1103
Mailing Address821 Loring AveCrockett, CA 94525-1103 · (510) 219-4701
Phone(510) 219-4701
Sole ProprietorNo
Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1998
Enumeration DateApril 3, 2006
Last NPPES UpdateDecember 3, 2021
✔ NPI 1902868359 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · M0511
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.
821 LORING AVE, Crockett, CA 94525
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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

Dr. John The Phong Nguyen M.d. 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 ID5597823500
PECOS Enrollment IDI20081021000075
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 94525 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

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 Nguyen's NPI number?

The NPI number for John Nguyen is 1902868359. It was assigned to this individual provider in the NPPES registry on April 3, 2006.

Where is John Nguyen located?

John Nguyen practices at 821 Loring Ave, Crockett, CA 94525. The listed phone number is (510) 219-4701.

What is John Nguyen's specialty?

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

Is John Nguyen enrolled in Medicare?

Yes. John Nguyen 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 John Nguyen 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.