DR. AN THI-NGOC NGUYEN D.O.
NPI 1669729513
Family Medicine in Costa Mesa, CA

Q: What is An Nguyen's NPI number?

The NPI number for An Nguyen is 1669729513. It was assigned to this individual provider in the NPPES registry on August 10, 2012.

Q: What is An 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 An Nguyen was last updated on June 14, 2022. 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.

Active since August 10, 2012PECOS Enrolled

150 PAULARINO AVE STE D182, COSTA MESA, CA 92626(949) 353-5053(949) 799-2808 Get Directions Write a Review

NPPES record last updated: June 14, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. An Thi-ngoc Nguyen D.o. NPPES

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

DR. AN THI-NGOC NGUYEN D.O. (NPI 1669729513) is an individual family medicine provider in Costa Mesa, California, licensed in California (20A12373) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669729513

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. AN THI-NGOC NGUYENCredential: D.O.

Location Address150 PAULARINO AVE STE D182Costa Mesa, CA 92626-3302

Mailing AddressPo Box 5664Garden Grove, CA 92846-0664

Phone(949) 353-5053

Fax(949) 799-2808

Sole ProprietorYes

Enumeration DateAugust 10, 2012

Last NPPES UpdateJune 14, 2022

NPPES CertifiedJune 14, 2022

✔ NPI 1669729513 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · 20A12373

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.

150 PAULARINO AVE STE D182, Costa Mesa, CA 92626

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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. An Thi-ngoc Nguyen D.o. 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

Medicare enrollment records show An Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Jason R. Abney, Do A California Medical Corporation

16 mi

Hospice and Palliative Medicine

8 FALKNER DR
Ladera Ranch, CA 92694

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

NPI 1760912398 (949) 350-1133

Housecall Doctors Medical Group Inc

18 mi

Geriatric Medicine

3800 KILROY AIRPORT WAY STE 270
Long Beach, CA 90806

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

NPI 1033164017 (949) 366-1053

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 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.

Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 99350

An established patient home visit is a service where a healthcare professional visits a patient's home for a check-up or treatment. The visit typically lasts for about an hour. This service is especially beneficial for patients who may have difficulty traveling to a healthcare facility.

180 services84 patients

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

63 services38 patients

Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes 99345

A new patient home visit is a comprehensive 75-minute appointment conducted at your home. The healthcare professional will assess your health, discuss any concerns, and create a personalized care plan. It's convenient, comfortable, and tailored to your specific needs.

59 services59 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

45 services45 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92626 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

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 23

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

Sterile water, saline and/or dextrose, diluent/flush, 10 ml A4216

DME-Medical/Surgical Supplies · category DA000N

3 suppliers13 claims658 services$0.43 avg. paid by Medicare

Tracheal suction catheter, closed system, each A4605

DME-Other DME · category DE000N

3 suppliers31 claims189 services$15.84 avg. paid by Medicare

Tracheostomy, inner cannula A4623

DME-Orthotic Devices · category DF000N

2 suppliers12 claims360 services$5.38 avg. paid by Medicare

Tracheal suction catheter, any type other than closed system, each A4624

DME-Other DME · category DE000N

1 supplier11 claims990 services$2.55 avg. paid by Medicare

Oropharyngeal suction catheter, each A4628

DME-Other DME · category DE000N

2 suppliers22 claims132 services$3.52 avg. paid by Medicare

Tracheostomy care kit for established tracheostomy A4629

DME-Orthotic Devices · category DF000N

3 suppliers34 claims1,020 services$4.47 avg. paid by Medicare

Canister, disposable, used with suction pump, each A7000

DME-Other DME · category DE000N

3 suppliers32 claims65 services$7.16 avg. paid by Medicare

Tubing, used with suction pump, each A7002

DME-Other DME · category DE000N

2 suppliers21 claims43 services$3.71 avg. paid by Medicare

Tracheostomy tube collar/holder, each A7526

DME-Orthotic Devices · category DF000N

3 suppliers32 claims960 services$3.28 avg. paid by Medicare

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

4 suppliers38 claims1,143 services$4.25 avg. paid by Medicare

Enteral feeding supply kit; gravity fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4036

Other-Enteral and Parenteral · category OB006N

1 supplier12 claims360 services$3.51 avg. paid by Medicare

Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150

Other-Enteral and Parenteral · category OB006N

3 suppliers26 claims6,909 services$0.32 avg. paid by Medicare

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

2 suppliers20 claims10,704 services$0.25 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier11 claims11 services$35.76 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

4 suppliers18 claims18 services$10.75 avg. paid by Medicare

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465

DME-Other DME · category DE005N

3 suppliers29 claims29 services$783.15 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

4 suppliers16 claims16 services$2.82 avg. paid by Medicare

Iv pole E0776

DME-Other DME · category DE000N

1 supplier25 claims25 services$4.46 avg. paid by Medicare

Wheelchair accessory, headrest, cushioned, any type, including fixed mounting hardware, each E0955

DME-Wheelchairs · category DD021N

1 supplier11 claims11 services$13.02 avg. paid by Medicare

Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory E1028

DME-Wheelchairs · category DD021N

1 supplier11 claims33 services$13.30 avg. paid by Medicare

Manual adult size wheelchair, includes tilt in space E1161

DME-Wheelchairs · category DD000N

1 supplier11 claims11 services$172.28 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

4 suppliers18 claims18 services$48.55 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

4 suppliers12 claims12 services$23.83 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 7

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

MADISON LUCAS

Nurse Practitioner (Family)

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (866) 300-7227

KATHERINE YI FNP

Nurse Practitioner (Family)

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (949) 749-3425

KAREN ANNE SHADRICK

Nurse Practitioner

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (888) 336-3649

GLOBAL TRANSITIONAL CARE, LLC

Specialist

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (949) 668-2321

UCHENNA MARIA OHIRI FNP--C

Nurse Practitioner (Family)

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (800) 482-5174

LINA HO

Nurse Practitioner (Family)

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (949) 668-5227

CARE DIRECT MEDICAL GROUP INC

Family Medicine

150 PAULARINO AVE STE D182
COSTA MESA, CA 92626

Orange County (949) 556-3433

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 An Nguyen's NPI number?

The NPI number for An Nguyen is 1669729513. It was assigned to this individual provider in the NPPES registry on August 10, 2012.

Where is An Nguyen located?

An Nguyen practices at 150 Paularino Ave Ste D182, Costa Mesa, CA 92626. The listed phone number is (949) 353-5053.

What is An Nguyen's specialty?

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

Is An Nguyen enrolled in Medicare?

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

Which organizations bill Medicare for An Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), An Nguyen reassigns Medicare benefits to 2 organizations: Jason R. Abney, Do A California Medical Corporation (Ladera Ranch, CA) and Housecall Doctors Medical Group Inc (Long Beach, 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 An 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 An Nguyen was last updated on June 14, 2022. 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.