MS. MAI TUYET DUONG M.D.
NPI 1629339304
Internal Medicine in El Cajon, CA

Active since May 30, 2012PECOS EnrolledAccepts Medicare Assignment
525 E MAIN ST, EL CAJON, CA 92020(619) 515-2498 Get Directions Write a Review

NPPES record last updated: May 10, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 10, 2023, Jun 28, 2016 (2 updates tracked since 2016).

About Ms. Mai Tuyet Duong M.d. NPPES

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

MS. MAI TUYET DUONG M.D. (NPI 1629339304) is an individual internal medicine provider in El Cajon, California, licensed in California (A127798) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2012).

NPPES Registry Identity

NPI1629339304
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMS. MAI TUYET DUONGCredential: M.D.
Location Address525 E MAIN STEl Cajon, CA 92020-4007
Mailing Address823 Gateway Center WaySan Diego, CA 92102-4541 · (619) 515-2300
Sole ProprietorNo
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2012
Enumeration DateMay 30, 2012
Last NPPES UpdateMay 10, 20232 updates tracked since enumeration
NPPES CertifiedMay 10, 2023
NPI 1629339304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A127798
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.
Also ListedPediatricsTaxonomy 208000000X · License A127798 (CA)
525 E MAIN ST, El Cajon, CA 92020

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

Ms. Mai Tuyet Duong 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 ID5395041776
PECOS Enrollment IDI20160310001538
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92020 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 2

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
8 suppliers17 claims21 services$5.44 avg. paid by Medicare
Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470
DME-Other DME · category DE001N
1 supplier11 claims11 services$61.07 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.

Internal Medicine (Endocrinology, Diabetes & Metabolism)
525 E MAIN ST
EL CAJON, CA 92020
Social Worker (Clinical)
525 E MAIN ST
EL CAJON, CA 92020
Chiropractor
525 E MAIN ST
EL CAJON, CA 92020
Psychologist
525 E MAIN ST
EL CAJON, CA 92020
Family Medicine
525 E MAIN ST
EL CAJON, CA 92020
Nurse Practitioner (Psychiatric/Mental Health)
525 E MAIN ST
EL CAJON, CA 92020
Physician Assistant
525 E MAIN ST
EL CAJON, CA 92020
Family Medicine
525 E MAIN ST
EL CAJON, CA 92020

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 Mai Duong's NPI number?

The NPI number for Mai Duong is 1629339304. It was assigned to this individual provider in the NPPES registry on May 30, 2012.

Where is Mai Duong located?

Mai Duong practices at 525 E Main St, El Cajon, CA 92020. The listed phone number is (619) 515-2498.

What is Mai Duong's specialty?

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

Is Mai Duong enrolled in Medicare?

Yes. Mai Duong 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 Mai Duong was last updated on May 10, 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.