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DR. THIEN-GIANG BACH-HUYNH M.D.
NPI 1881649556
Internal Medicine - Endocrinology, Diabetes & Metabolism in Arlington, VA

Active since May 23, 2006PECOS EnrolledAccepts Medicare Assignment
1625 N GEORGE MASON DR, SUITE 375, ARLINGTON, VA 22205(703) 717-4170(703) 717-4171 Get Directions Write a Review

NPPES record last updated: March 31, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Thien-giang Bach-huynh M.d. NPPES

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

DR. THIEN-GIANG BACH-HUYNH M.D. (NPI 1881649556) is an individual endocrinology, diabetes & metabolism provider in Arlington, Virginia, licensed in Virginia (0101234900) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Virginia Hospital Center, and is a graduate of George Washington University School Of Medicine (2001).

NPPES Registry Identity

NPI1881649556
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. THIEN-GIANG BACH-HUYNHCredential: M.D.
Location Address1625 N GEORGE MASON DR, SUITE 375Arlington, VA 22205-3683
Mailing Address1625 N George Mason Dr, Suite 375Arlington, VA 22205-3683 · (703) 717-4170 · Fax (703) 717-4171
Phone(703) 717-4170
Fax(703) 717-4171
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2001
Enumeration DateMay 23, 2006
Last NPPES UpdateMarch 31, 2010
✔ NPI 1881649556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in VA · 0101234900
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.
1625 N GEORGE MASON DR, Arlington, VA 22205
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Other Identifiers 1

Medicare PING02387T01

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

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. Thien-giang Bach-huynh 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 ID4981603834
PECOS Enrollment IDI20061204000541, I20140624001472
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 Reassignment

Medicare enrollment records show Thien-giang Bach-huynh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Privia Medical Group, LLC
0.8 mi
Internal Medicine
950 N GLEBE RD STE 700
Arlington, VA 22203
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • 1,534 clinicians in this Medicare group
NPI 1013042480 (571) 366-8850

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 7

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.
599 services306 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
215 services148 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.
195 services114 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.
114 services58 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
96 services71 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.
21 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490050
Location1701 North George Mason DriveArlington, VA 22205 · Arlington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22205 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
95%2,501 patients4/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
89%127 patients5/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%324 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
49%1,547 patients3/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
99%1,547 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
88%1,547 patients4/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
76%1,547 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

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
28 suppliers89 claims368 services$6.53 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
16 suppliers44 claims76 services$1.03 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
8 suppliers90 claims91 services$187.29 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.

DR. LUIS E. SANZ M.D.
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
1625 N GEORGE MASON DR, SUITE 475
ARLINGTON, VA 22205
Arlington County (703) 717-4000
AMANDA ELAINE ROHN MD
Obstetrics & Gynecology
1625 N GEORGE MASON DR, SUITE 325
ARLINGTON, VA 22205
Arlington County (703) 717-4600
MR. JOSEPH FRANCIS KIRBY JR. PA-C
Physician Assistant (Surgical)
1625 N GEORGE MASON DR, SUITE 288
ARLINGTON, VA 22205
Arlington County (703) 558-6491
DR. JOSEPH JOHN BUCHINO MD
Pathology (Anatomic Pathology & Clinical Pathology)
1625 N GEORGE MASON DR, PATHOLOGY DEPT
ARLINGTON, VA 22205
Arlington County (703) 558-5499
DR. JENNIFER LYNN KILMER M.D.
Obstetrics & Gynecology
1625 N GEORGE MASON DR, SUITE 465
ARLINGTON, VA 22205
Arlington County (703) 717-4050
DANIEL BOYD CASEY M.D.
Internal Medicine (Critical Care Medicine)
1625 N GEORGE MASON DR, SUITE 355
ARLINGTON, VA 22205
Arlington County (703) 521-6662
DR. JOHN W RHEE M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1625 N GEORGE MASON DR, SUITE 288
ARLINGTON, VA 22205
Arlington County (703) 558-6491
DR. ELLSWORTH J STAY MD
Pathology (Anatomic Pathology & Clinical Pathology)
1625 N GEORGE MASON DR, PATHOLOGY DEPT
ARLINGTON, VA 22205
Arlington County (703) 558-6541

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 Thien-giang Bach-huynh's NPI number?

The NPI number for Thien-giang Bach-huynh is 1881649556. It was assigned to this individual provider in the NPPES registry on May 23, 2006.

Where is Thien-giang Bach-huynh located?

Thien-giang Bach-huynh practices at 1625 N George Mason Dr Suite 375, Arlington, VA 22205. The listed phone number is (703) 717-4170.

What is Thien-giang Bach-huynh's specialty?

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

Is Thien-giang Bach-huynh enrolled in Medicare?

Yes. Thien-giang Bach-huynh 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 organization bills Medicare for Thien-giang Bach-huynh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thien-giang Bach-huynh reassigns Medicare benefits to Privia Medical Group, LLC (Arlington, VA). The 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 Thien-giang Bach-huynh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thien-giang Bach-huynh accept?

Health plans from Oscar Health list Thien-giang Bach-huynh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thien-giang Bach-huynh affiliated with any hospitals?

According to CMS data, Thien-giang Bach-huynh is affiliated with Virginia Hospital Center.

When was this NPI record last updated?

The NPPES record for Thien-giang Bach-huynh was last updated on March 31, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.