Thien DO, M.D.
NPI 1740238195 · Cardiovascular Disease Physician · Annandale, VA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thien DO, M.D. is a Cardiovascular Disease Physician provider in Annandale, VA (NPI 1740238195).
Provider details
- NPI number
- 1740238195
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101047162 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,464 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 560 | $18 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 428 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 403 | $141 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 196 | $222 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 275 | 101 |
| Amlodipine Besylate | 179 | 69 |
| Apixabanbrand: Eliquis | 84 | 30 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 71 | 23 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 64 | 21 |
| Nitroglycerin | 61 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$398 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2018-03-04
Frequently asked questions
- What is Thien DO's NPI number?
- Thien DO's National Provider Identifier (NPI) is 1740238195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thien DO's specialty?
- Thien DO is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Thien DO located?
- Thien DO's practice location on file with NPPES is 7432 Little River Tpke, Annandale, VA 22003-3013.
- What is Thien DO's phone number?
- The practice phone number listed in the NPPES registry for Thien DO is (703) 658-7060.
- Does Thien DO accept Medicare?
- Thien DO is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thien DO's NPI active?
- Yes — Thien DO's NPI (1740238195) is active in the NPPES registry as of the last update on 2018-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.