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PETER NGUYEN M.D.
NPI 1912387812
Internal Medicine - Critical Care Medicine in Downey, CA

Active since June 05, 2015PECOS Enrolled
7601 IMPERIAL HWY STE JPI 3120, DOWNEY, CA 90242(562) 385-7674 Get Directions Write a Review

NPPES record last updated: April 18, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 6, 2021, Oct 24, 2019 (2 updates tracked since 2019).

About Peter Nguyen M.d. NPPES

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

PETER NGUYEN M.D. (NPI 1912387812) is an individual critical care medicine provider in Downey, California, licensed in California (A148606) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912387812
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NamePETER NGUYENCredential: M.D.
Location Address7601 IMPERIAL HWY STE JPI 3120Downey, CA 90242-3456
Mailing Address7601 Imperial Hwy Ste Jpi 3120Downey, CA 90242-3456 · (562) 385-7674
Phone(562) 385-7674
Sole ProprietorNo
Enumeration DateJune 5, 2015
Last NPPES UpdateApril 18, 20232 updates tracked since enumeration
NPPES CertifiedApril 18, 2023
✔ NPI 1912387812 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in CA · A148606
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License A148606 (CA)
7601 IMPERIAL HWY STE JPI 3120, Downey, CA 90242
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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 (PECOS)

Peter Nguyen 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.

Medicare Billing Reassignments

4

Medicare enrollment records show Peter Nguyen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Los Angeles Auditor Controller
Same address
Physician Assistant
7601 IMPERIAL HWY
Downey, CA 90242
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: County Of Los Angeles
  • 1,939 clinicians in this Medicare group
NPI 1528162229 (562) 803-0124
Southern California Permanente Medical Group
2.3 mi
Health Maintenance Organization
9400 ROSECRANS AVE
Bellflower, CA 90706
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1043242555 (562) 461-3000
Prestige Pulmonary Consultants Inc
9.0 mi
Critical Care Medicine
500 N GARFIELD AVE STE 204
Monterey Park, CA 91754
  • Reassigned Medicare billing, California enrollment
  • 17 clinicians in this Medicare group
NPI 1295370351 (626) 280-4393
Healthcare Partners Affiliates Medical Group
10 mi
Internal Medicine
1120 W WASHINGTON BLVD
Los Angeles, CA 90015
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1659312593 (213) 623-2225

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
51 services32 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
24 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90242 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier32 claims32 services$13.49 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier25 claims25 services$61.93 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. SEAN DAVID DREYER MD
Physical Medicine & Rehabilitation
7601 IMPERIAL HWY STE JPI 3120
DOWNEY, CA 90242
Los Angeles County (562) 385-7111
MONDANA HATZIDAKIS PA-C
Physician Assistant
7601 IMPERIAL HWY STE JPI 3120
DOWNEY, CA 90242
Los Angeles County (562) 385-7611

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 Peter Nguyen's NPI number?

The NPI number for Peter Nguyen is 1912387812. It was assigned to this individual provider in the NPPES registry on June 5, 2015.

Where is Peter Nguyen located?

Peter Nguyen practices at 7601 Imperial Hwy Ste Jpi 3120, Downey, CA 90242. The listed phone number is (562) 385-7674.

What is Peter Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Peter Nguyen enrolled in Medicare?

Yes. Peter Nguyen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Peter Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Nguyen reassigns Medicare benefits to 4 organizations: County Of Los Angeles Auditor Controller (Downey, CA), Southern California Permanente Medical Group (Bellflower, CA), Prestige Pulmonary Consultants Inc (Monterey Park, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, CA). 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 Peter Nguyen'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 Peter Nguyen was last updated on April 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.