BAC HAI NGUYEN MD
NPI 1851400527
Otolaryngology in West Covina, CA

Q: What is Bac Nguyen's NPI number?

The NPI number for Bac Nguyen is 1851400527. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Q: What is Bac Nguyen's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Bac Nguyen was last updated on July 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 29, 2006PECOS Enrolled

0/100

CMS Quality Rating

933 S SUNSET AVENUE, SUITE # 307, WEST COVINA, CA 91790(626) 962-6811(626) 960-9520 Get Directions Write a Review

NPPES record last updated: July 17, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Bac Hai Nguyen Md NPPES

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

BAC HAI NGUYEN MD (NPI 1851400527) is an individual otolaryngology provider in West Covina, California, licensed in California (G79012) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of The General Medical College (1992).

NPPES Registry Identity

NPI1851400527

Entity TypeIndividualMale

Primary Taxonomy207Y00000X

Provider Legal NameBAC HAI NGUYENCredential: MD

Location Address933 S SUNSET AVENUE, SUITE # 307West Covina, CA 91790

Mailing Address933 S Sunset Avenue, Suite # 307West Covina, CA 91790 · (626) 962-6811 · Fax (626) 960-9520

Phone(626) 962-6811

Fax(626) 960-9520

Sole ProprietorYes

Medical School CMSThe General Medical CollegeGraduated 1992

Enumeration DateAugust 29, 2006

Last NPPES UpdateJuly 17, 2008

✔ NPI 1851400527 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians

Taxonomy Code207Y00000X

License✔ Licensed in CA · G79012

Definition

An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

933 S SUNSET AVENUE, West Covina, CA 91790

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Other Identifiers 3

OtherG79012CA · Ptan

Medicare UPING69443

Medicaid00G790120CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bac Hai Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5991889537

PECOS Enrollment IDI20080221000180

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 16

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

1,368 services541 patients

Removal of foreign body in ear canal 69200

This procedure involves the careful extraction of an object that has become lodged in your ear canal. It is performed by a medical professional using specialized tools. The process is usually quick and painless, but may require local anesthesia depending on the situation.

720 services394 patients

Repair of eardrum 69610

Repair of the eardrum, or tympanoplasty, is a surgical procedure to fix a hole or tear in the eardrum. This can improve hearing and prevent infections. The surgeon uses a patch, often taken from your own tissue, to close the hole, promoting natural healing.

500 services237 patients

Diagnostic exam of nasal passages using an endoscope 31231

A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.

465 services253 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.

421 services78 patients

Diagnostic exam of voice box using an endoscope with mirror 31505

This procedure involves using a special tool called an endoscope, fitted with a mirror, to examine your voice box. It helps identify any abnormalities or issues that may affect your voice or breathing. It's a safe, straightforward process.

401 services210 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

144 services144 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.

85 services82 patients

Simple removal of skin debris and drainage of mastoid cavity 69220

This procedure involves clearing out skin debris and draining fluid from the mastoid cavity, an air-filled space in the skull behind the ear. It's done to relieve discomfort, improve hearing, and prevent complications related to ear infections or other conditions.

68 services47 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

68 services54 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

48 services48 patients

Biopsy or removal of nasal polyp or tissue using an endoscope 31237

A nasal biopsy or polyp removal is a procedure where an endoscope, a thin tube with a light and camera, is inserted into the nose. This allows the doctor to see and remove abnormal tissues or polyps, which are small growths. This procedure helps diagnose or treat nasal issues.

44 services28 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

30 services27 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.

27 services22 patients

Diagnostic exam of voice box using a flexible endoscope 31575

21 services14 patients

Control of bleeding of nose using an endoscope 31238

This is a procedure where an endoscope, a thin tube with a light and camera, is used to view inside your nose. This allows the doctor to locate the source of the bleeding and control it, often by cauterization or packing the nose.

16 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91790 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

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

0/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

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.

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

1 supplier11 claims11 services$43.20 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

3 suppliers15 claims90 services$1.57 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Bac Nguyen's NPI number?

The NPI number for Bac Nguyen is 1851400527. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Where is Bac Nguyen located?

Bac Nguyen practices at 933 S Sunset Avenue Suite # 307, West Covina, CA 91790. The listed phone number is (626) 962-6811.

What is Bac Nguyen's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Bac Nguyen enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Bac Nguyen was last updated on July 17, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.