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PHONG HUY BUI MD
NPI 1316177462
Internal Medicine - Endocrinology, Diabetes & Metabolism in Fountain Valley, CA

Active since July 23, 2009PECOS EnrolledAccepts Medicare AssignmentCLIA 05D2095394 · Waiver
16055 BROOKHURST ST, SUITE #C, FOUNTAIN VALLEY, CA 92708(714) 839-2400 Get Directions Write a Review

NPPES record last updated: July 9, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 9, 2021, Jun 16, 2021, Nov 25, 2020 (3 updates tracked since 2020).

About Phong Huy Bui Md NPPES

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

PHONG HUY BUI MD (NPI 1316177462) is an individual endocrinology, diabetes & metabolism provider in Fountain Valley, California, licensed in California (A101682) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through May 5, 2027, and is a graduate of University Of California, Irvine, California College Of Medicine (2006).

NPPES Registry Identity

NPI1316177462
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NamePHONG HUY BUICredential: MD
Location Address16055 BROOKHURST ST, SUITE #CFountain Valley, CA 92708
Mailing Address8762 Tamarisk CirWestminster, CA 92683-6840 · (714) 925-9380
Phone(714) 839-2400
Sole ProprietorYes
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2006
Enumeration DateJuly 23, 2009
Last NPPES UpdateJuly 9, 20213 updates tracked since enumeration
NPPES CertifiedJuly 9, 2021
✔ NPI 1316177462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A101682
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License A101682 (CA)
16055 BROOKHURST ST, Fountain Valley, CA 92708
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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

Phong Huy Bui 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 ID7416093935
PECOS Enrollment IDI20091013000745
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2095394

Phong H Bui, Inc · Fountain Valley, CA
Active · expires May 5, 2027
CLIA Number05D2095394
Laboratory TypePhysician Office
Certificate Effective DateMay 6, 2025
Certificate Expiration DateMay 5, 2027
Laboratory DirectorPhong H. Bui, MD
Laboratory Phone(714) 839-2400
Laboratory LocationPhong H Bui, Inc16055 Brookhurst St Ste C, Fountain Valley, CA 92708
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 8

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.
1,370 services736 patients
Blood glucose (sugar) test performed by hand-held instrument 82962
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
1,191 services567 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
418 services192 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.
225 services97 patients
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
163 services89 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.
141 services141 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 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 4

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
57 suppliers349 claims884 services$5.38 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
56 suppliers294 claims438 services$0.94 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
18 suppliers226 claims235 services$187.07 avg. paid by Medicare
Receiver (monitor), dedicated, for use with therapeutic glucose continuous monitor system K0554
DME-Other DME · category DE017N
9 suppliers33 claims33 services$202.88 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

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

PHONG H BUI INC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
16055 BROOKHURST ST, SUITE C
FOUNTAIN VALLEY, CA 92708
Orange County (714) 839-2400

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 Phong Bui's NPI number?

The NPI number for Phong Bui is 1316177462. It was assigned to this individual provider in the NPPES registry on July 23, 2009.

Where is Phong Bui located?

Phong Bui practices at 16055 Brookhurst St Suite #c, Fountain Valley, CA 92708. The listed phone number is (714) 839-2400.

What is Phong Bui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Phong Bui enrolled in Medicare?

Yes. Phong Bui 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.

Does Phong Bui hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2095394) is associated with this NPI, valid through May 5, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Phong Bui was last updated on July 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.