NICHOLAS NGUYEN
NPI 1689239584
Internal Medicine - Infectious Disease in Santa Ana, CA

Q: What is Nicholas Nguyen's NPI number?

The NPI number for Nicholas Nguyen is 1689239584. It was assigned to this individual provider in the NPPES registry on May 6, 2019.

Q: What is Nicholas Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Nicholas Nguyen was last updated on September 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.

Active since May 06, 2019PECOS EnrolledAccepts Medicare Assignment

999 N TUSTIN AVE STE 109, SANTA ANA, CA 92705(714) 664-0045(714) 664-0049 Get Directions Write a Review

NPPES record last updated: September 20, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 20, 2024, Dec 20, 2021, May 6, 2019 (3 updates tracked since 2019).

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About Nicholas Nguyen NPPES

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

NICHOLAS NGUYEN (NPI 1689239584) is an individual infectious disease provider in Santa Ana, California, licensed in California (A177150) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Clara, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1689239584

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameNICHOLAS NGUYEN

Location Address999 N TUSTIN AVE STE 109Santa Ana, CA 92705-6501

Mailing Address700 Lawrence ExpySanta Clara, CA 95051-5173

Phone(714) 664-0045

Fax(714) 664-0049

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateMay 6, 2019

Last NPPES UpdateSeptember 20, 20243 updates tracked since enumeration

NPPES CertifiedSeptember 20, 2024

✔ NPI 1689239584 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in CA · A177150

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

999 N TUSTIN AVE STE 109, Santa Ana, CA 92705

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Secondary Practice Location 1

Location 1700 Lawrence ExpySanta Clara, CA 95051-5173 · Phone (408) 851-1000

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

Nicholas Nguyen 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 ID547648503

PECOS Enrollment IDI20241002001014

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.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

182 services71 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

56 services56 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.

56 services51 patients

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.

33 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92705 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 8

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

ROSHNY PATTATHU MD PROFESSIONAL CORPORATION

Clinic/Center