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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TIMOTHY THIEN TRAN M.D.
NPI 1336460914
Family Medicine in Garden Grove, CA

Active since June 17, 2010PECOS EnrolledAccepts Medicare Assignment
12692 GARDEN GROVE BLVD, GARDEN GROVE, CA 92843(714) 537-4343(714) 537-5543 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Timothy Thien Tran M.d. NPPES

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

TIMOTHY THIEN TRAN M.D. (NPI 1336460914) is an individual family medicine provider in Garden Grove, California, licensed in California (A123698) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1336460914
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameTIMOTHY THIEN TRANCredential: M.D.
Location Address12692 GARDEN GROVE BLVDGarden Grove, CA 92843-1909
Mailing Address12692 Garden Grove BlvdGarden Grove, CA 92843-1909 · (714) 537-4343
Phone(714) 537-4343
Fax(714) 537-5543
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateJune 17, 2010
Last NPPES UpdateOctober 1, 2026
NPPES CertifiedOctober 1, 2026
✔ NPI 1336460914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A123698
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
12692 GARDEN GROVE BLVD, Garden Grove, CA 92843
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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

Timothy Thien Tran 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 ID9436373859
PECOS Enrollment IDI20140604002353
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

2

Medicare enrollment records show Timothy Tran reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Timothy Thien Tran MD Inc
0.4 mi
Family Medicine
12302 GARDEN GROVE BLVD STE 7
Garden Grove, CA 92843
  • Reassigned Medicare billing, California enrollment
NPI 1699129916 (714) 823-0361
Cmg Express Care, Inc
32 mi
Family Medicine
4100 CENTRAL AVE, #101
Riverside, CA 92506
  • Reassigned Medicare billing, California enrollment
NPI 1962746404 (951) 824-7887

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.

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.
1,965 services453 patients
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.
1,035 services430 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.
213 services207 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.
212 services212 patients
Transitional care management services for problem of at least moderate complexity 99495
Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
54 services45 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
44 services44 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92843 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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 11

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
18 suppliers78 claims153 services$6.03 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
18 suppliers74 claims80 services$1.03 avg. paid by Medicare
Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003
DME-Other DME · category DE000N
2 suppliers13 claims25 services$0.89 avg. paid by Medicare
Filter, disposable, used with aerosol compressor or ultrasonic generator A7013
DME-Other DME · category DE000N
1 supplier12 claims24 services$0.32 avg. paid by Medicare
Aerosol mask, used with dme nebulizer A7015
DME-Other DME · category DE000N
2 suppliers13 claims13 services$0.65 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
3 suppliers17 claims17 services$2.00 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 Timothy Tran's NPI number?

The NPI number for Timothy Tran is 1336460914. It was assigned to this individual provider in the NPPES registry on June 17, 2010.

Where is Timothy Tran located?

Timothy Tran practices at 12692 Garden Grove Blvd, Garden Grove, CA 92843. The listed phone number is (714) 537-4343.

What is Timothy Tran's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Timothy Tran enrolled in Medicare?

Yes. Timothy Tran 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 Timothy Tran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Tran reassigns Medicare benefits to 2 organizations: Timothy Thien Tran MD Inc (Garden Grove, CA) and Cmg Express Care, Inc (Riverside, 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 Timothy Tran'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 Timothy Tran was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days 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.