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DR. DAT Q NGUYEN MD
NPI 1720092315
Internal Medicine in Hawthorne, CA

Active since July 28, 2006PECOS EnrolledAccepts Medicare Assignment
12954 HAWTHORNE BLVD, SUITE 104, HAWTHORNE, CA 90250(310) 679-0269(310) 679-1038 Get Directions Write a Review

NPPES record last updated: December 21, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Dat Q Nguyen Md NPPES

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

DR. DAT Q NGUYEN MD (NPI 1720092315) is an individual internal medicine provider in Hawthorne, California, licensed in California (G77541) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (1992).

NPPES Registry Identity

NPI1720092315
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAT Q NGUYENCredential: MD
Location Address12954 HAWTHORNE BLVD, SUITE 104Hawthorne, CA 90250-4418
Mailing Address12954 Hawthorne Blvd, Suite 104Hawthorne, CA 90250-4418 · (310) 679-0269 · Fax (310) 679-1038
Phone(310) 679-0269
Fax(310) 679-1038
Sole ProprietorYes
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 1992
Enumeration DateJuly 28, 2006
Last NPPES UpdateDecember 21, 2011
✔ NPI 1720092315 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 · G77541
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.
12954 HAWTHORNE BLVD, Hawthorne, CA 90250
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Other Identifiers 3

Medicare ID-Type UnspecifiedG77541CA · Medicare Number
Medicare UPING41477CA
Medicaid00G775410CA

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. Dat Q Nguyen Md 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 ID143254920
PECOS Enrollment IDI20050921000526
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

5

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

Dat Q Nguyen, MD, Inc
25 mi
Internal Medicine
12865 MAIN ST STE 105
Garden Grove, CA 92840
  • Reassigned Medicare billing, California enrollment
NPI 1811530686 (800) 560-9999
House Call Medical Associates, Inc.
25 mi
Geriatric Medicine
12865 MAIN ST STE 105
Garden Grove, CA 92840
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group
NPI 1548688732 (800) 560-9999
Ted Medical Group, Inc.
25 mi
Internal Medicine
12865 MAIN ST STE 105
Garden Grove, CA 92840
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1497396451 (800) 560-9999
In-Home Doctors Inc
28 mi
Family Medicine
11190 WARNER AVE, STE 301
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 8 clinicians in this Medicare group
NPI 1871812214 (714) 430-1414
Bolsa Medical Group
Surgery
10362 BOLSA AVE
Westminster, CA 92683
  • Reassigned Medicare billing, California enrollment
  • 19 clinicians in this Medicare group
NPI 1992732192 (714) 531-2091

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 9

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 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.
2,850 services348 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.
472 services352 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.
466 services349 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
74 services65 patients
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305
An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.
63 services44 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
62 services46 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90250 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 17

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

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314
DME-Orthotic Devices · category DF000N
1 supplier19 claims19 services$24.58 avg. paid by Medicare
Oropharyngeal suction catheter, each A4628
DME-Other DME · category DE000N
1 supplier13 claims104 services$3.20 avg. paid by Medicare
Canister, disposable, used with suction pump, each A7000
DME-Other DME · category DE000N
1 supplier11 claims22 services$6.53 avg. paid by Medicare
Tubing, used with suction pump, each A7002
DME-Other DME · category DE000N
1 supplier11 claims22 services$3.32 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
6 suppliers66 claims1,831 services$4.31 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 suppliers23 claims8,790 services$0.24 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 5

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

DR. ROBERT LANCE CHARET MD
Ophthalmology
12954 HAWTHORNE BLVD, SUITE 103
HAWTHORNE, CA 90250
Los Angeles County (310) 676-1373
MRS. AISHA KEEKEEBHAI NP
Nurse Practitioner (Obstetrics & Gynecology)
12954 HAWTHORNE BLVD, SUITE 100
HAWTHORNE, CA 90250
Los Angeles County (310) 978-6900
HAWTHORNE MORNINGSIDE MEDICAL CLINIC
Pediatrics
12954 HAWTHORNE BLVD, SUITE 104
HAWTHORNE, CA 90250
Los Angeles County (310) 679-0269
ELIZABETH IBARRA MSN, FNP-C
Nurse Practitioner (Family)
12954 HAWTHORNE BLVD, STE. 104
HAWTHORNE, CA 90250
Los Angeles County (310) 679-0269
AGHAPY MEDICAL GROUP, INC
Family Medicine
12954 HAWTHORNE BLVD, 101
HAWTHORNE, CA 90250
Los Angeles County (310) 219-1550

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 Dat Nguyen's NPI number?

The NPI number for Dat Nguyen is 1720092315. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Where is Dat Nguyen located?

Dat Nguyen practices at 12954 Hawthorne Blvd Suite 104, Hawthorne, CA 90250. The listed phone number is (310) 679-0269.

What is Dat Nguyen's specialty?

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

Is Dat Nguyen enrolled in Medicare?

Yes. Dat 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.

Which organizations bill Medicare for Dat Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dat Nguyen reassigns Medicare benefits to 5 organizations: Dat Q Nguyen, MD, Inc (Garden Grove, CA), House Call Medical Associates, Inc. (Garden Grove, CA), Ted Medical Group, Inc. (Garden Grove, CA), In-Home Doctors Inc (Fountain Valley, CA) and Bolsa Medical Group (Westminster, 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 Dat 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 Dat Nguyen was last updated on December 21, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.