DR. KHAI HOANG NGUYEN M.D., M.H.S.
NPI 1104067230
Internal Medicine in La Jolla, CA

Q: What is Khai Nguyen's NPI number?

The NPI number for Khai Nguyen is 1104067230. It was assigned to this individual provider in the NPPES registry on March 19, 2009.

Q: What is Khai Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Khai Nguyen was last updated on September 30, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 March 19, 2009PECOS EnrolledAccepts Medicare Assignment

10666 N TORREY PINES RD, 403C, LA JOLLA, CA 92037(858) 554-9500 Get Directions Write a Review

NPPES record last updated: September 30, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Khai Hoang Nguyen M.d., M.h.s. NPPES

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

DR. KHAI HOANG NGUYEN M.D., M.H.S. (NPI 1104067230) is an individual internal medicine provider in La Jolla, California, licensed in California (A102172) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (2006).

NPPES Registry Identity

NPI1104067230

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. KHAI HOANG NGUYENCredential: M.D., M.H.S.

Location Address10666 N TORREY PINES RD, 403CLa Jolla, CA 92037-1027

Mailing AddressFile # 54433Los Angeles, CA 90074-0001

Phone(858) 554-9500

Sole ProprietorYes

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2006

Enumeration DateMarch 19, 2009

Last NPPES UpdateSeptember 30, 2009

✔ NPI 1104067230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A102172

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

10666 N TORREY PINES RD, La Jolla, CA 92037

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Other Identifiers 1

Medicare UPINCF224ZCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Khai Hoang Nguyen M.d., M.h.s. 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 ID5799831012

PECOS Enrollment IDI20090928000589

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

Pouya Afshar MD Inc

11 mi

Specialist

3111 CAMINO DEL RIO N STE 625
San Diego, CA 92108

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

NPI 1710336094 (619) 738-5566

Regents Of The University Of California

11 mi

Allergy & Immunology

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
1,051 clinicians in this Medicare group

NPI 1487772380 (800) 926-8273

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 10

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 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.

228 services138 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

143 services97 patients

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.

26 services14 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

24 services24 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

23 services23 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 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

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

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 8

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

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 claims11 services$13.30 avg. paid by Medicare

Manual adult size wheelchair, includes tilt in space E1161

DME-Wheelchairs · category DD000N

1 supplier11 claims11 services$176.89 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

3 suppliers24 claims25 services$59.77 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers11 claims11 services$29.11 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers20 claims20 services$16.61 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 20

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

MRS. SUSAN ELIZABETH MCKIM PA-C

Physician Assistant (Medical)