DR. DAVID NGUYEN DO
NPI 1669961801
Family Medicine in Montclair, CA

Q: What is David Nguyen's NPI number?

The NPI number for David Nguyen is 1669961801. It was assigned to this individual provider in the NPPES registry on May 3, 2018.

Q: What is David Nguyen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for David Nguyen was last updated on May 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since May 03, 2018PECOS Enrolled

5000 SAN BERNARDINO ST, MONTCLAIR, CA 91763(909) 625-8231 Get Directions Write a Review

NPPES record last updated: May 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 15, 2024, Nov 1, 2021, May 3, 2018 (3 updates tracked since 2018).

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About Dr. David Nguyen Do NPPES

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

DR. DAVID NGUYEN DO (NPI 1669961801) is an individual family medicine provider in Montclair, California, licensed in California (20A17696) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS and is a graduate of William Carey University College Of Osteopathic Medicine (2018).

NPPES Registry Identity

NPI1669961801

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. DAVID NGUYENCredential: DO

Location Address5000 SAN BERNARDINO STMontclair, CA 91763-2326

Mailing Address1769 S Biscayne CtAnaheim, CA 92804-6401 · (562) 787-4966

Phone(909) 625-8231

Sole ProprietorNo

Medical School CMSWilliam Carey University College Of Osteopathic MedicineGraduated 2018

Enumeration DateMay 3, 2018

Last NPPES UpdateMay 15, 20243 updates tracked since enumeration

NPPES CertifiedMay 15, 2024

✔ NPI 1669961801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · 20A17696

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedHospitalistTaxonomy 208M00000X · License 20A17696 (CA)

5000 SAN BERNARDINO ST, Montclair, CA 91763

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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)

Dr. David Nguyen Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8426486077

PECOS Enrollment IDI20200316000160

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

Medicare enrollment records show David Nguyen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inland Physicians Service Inc

5.9 mi

Family Medicine

9089 BASELINE ROAD, SUITE 100
Rancho Cucamonga, CA 91730

Reassigned Medicare billing, California enrollment
8 clinicians in this Medicare group

NPI 1083724850 (909) 483-0505

E Lin, Do, Inc.

15 mi

Family Medicine

1850 S AZUSA AVE STE 201
Hacienda Heights, CA 91745

Reassigned Medicare billing, California enrollment
5 clinicians in this Medicare group

NPI 1649911371 (626) 913-2383

Southern California Hospitalist Network Medical Group Inc

23 mi

Internal Medicine

625 THE CITY DR S STE 320
Orange, CA 92868

Reassigned Medicare billing, California enrollment
187 clinicians in this Medicare group

NPI 1790880458 (714) 202-2330

Astrana Care Hospitalists, A Medical Corporation

24 mi

Hospitalist

1680 S GARFIELD AVE # 204
Alhambra, CA 91801

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Apollomed Hospitalists A Medical Corporation
53 clinicians in this Medicare group

NPI 1265658595 (626) 943-6476

Amg, A Professional Medical Corporation

25 mi

Internal Medicine

1658 W VALLEY BLVD STE 120
Alhambra, CA 91803

Reassigned Medicare billing, California enrollment
48 clinicians in this Medicare group

NPI 1558306266 (626) 282-0282

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 6

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 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.

172 services69 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

63 services62 patients

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.

57 services34 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

18 services18 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.

15 services15 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91763 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

$91.88 typical visit price

range $59.60 – $179.42

Typical copayment $22.97 (range $14.90 – $44.85)

Most-billed visit code 99203

Established Patient

$104.64 typical visit price

range $19.37 – $146.42

Typical copayment $26.16 (range $4.84 – $36.60)

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

2 suppliers16 claims16 services$14.86 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

2 suppliers17 claims17 services$68.89 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 12

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

DOCTORS' HOSPITAL MEDICAL CENTER OF MONTCLAIR

General Acute Care Hospital