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DR. TAM K NGUYEN M.D.
NPI 1720153182
Internal Medicine in Garden Grove, CA

Active since November 21, 2006PECOS EnrolledAccepts Medicare Assignment
12221 BROOKHURST ST STE 100, GARDEN GROVE, CA 92840(714) 805-8260(714) 908-8086 Get Directions Write a Review

NPPES record last updated: April 22, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Tam K Nguyen M.d. NPPES

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

DR. TAM K NGUYEN M.D. (NPI 1720153182) is an individual internal medicine provider in Garden Grove, California, licensed in California (A55848) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1994).

NPPES Registry Identity

NPI1720153182
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. TAM K NGUYENCredential: M.D.
Location Address12221 BROOKHURST ST STE 100Garden Grove, CA 92840-2848
Mailing Address19087 Chandon LnHuntington Beach, CA 92648-2145 · (714) 757-3797 · Fax (714) 541-5029
Phone(714) 805-8260
Fax(714) 908-8086
Sole ProprietorYes
Medical School CMSTulane University School Of MedicineGraduated 1994
Enumeration DateNovember 21, 2006
Last NPPES UpdateApril 22, 2023
NPPES CertifiedApril 22, 2023
✔ NPI 1720153182 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 · A55848
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.
12221 BROOKHURST ST STE 100, Garden Grove, CA 92840
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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

Dr. Tam K Nguyen M.d. 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 ID6305917485
PECOS Enrollment IDI20120328000989
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 5

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.
742 services114 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
300 services39 patients
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow G0181
This service involves a physician overseeing your care while you receive Medicare-covered services from a home health agency. The care you're receiving is complex and involves various disciplines. The physician isn't physically present but regularly supervises your treatment to ensure optimal health outcomes.
198 services66 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.
32 services19 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.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92840 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.

Referred Medical Equipment & Supplies CMS DME claims 10

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

Tracheostomy tube collar/holder, each A7526
DME-Orthotic Devices · category DF000N
1 supplier11 claims341 services$3.28 avg. paid by Medicare
Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
1 supplier21 claims630 services$2.57 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
1 supplier12 claims358 services$4.17 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
2 suppliers24 claims12,635 services$0.32 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
2 suppliers14 claims14 services$12.73 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers13 claims13 services$2.05 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 2

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

TAM K NGUYEN MEDICAL PROFESSIONAL CORP
Internal Medicine
12221 BROOKHURST ST STE 100
GARDEN GROVE, CA 92840
Orange County (714) 805-8260
RICHARD LE, MD, FCCP
Internal Medicine (Critical Care Medicine)
12221 BROOKHURST ST STE 100
GARDEN GROVE, CA 92840
Orange County (714) 805-8260

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 Tam Nguyen's NPI number?

The NPI number for Tam Nguyen is 1720153182. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Where is Tam Nguyen located?

Tam Nguyen practices at 12221 Brookhurst St Ste 100, Garden Grove, CA 92840. The listed phone number is (714) 805-8260.

What is Tam Nguyen's specialty?

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

Is Tam Nguyen enrolled in Medicare?

Yes. Tam Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Tam Nguyen was last updated on April 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.