Han-Jong Koh, MD
NPI 1619962263 · Internal Medicine Physician · Leesburg, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Han-Jong Koh, MD is a Internal Medicine Physician provider in Leesburg, VA (NPI 1619962263).
Provider details
- NPI number
- 1619962263
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101051485 (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
2,078 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 659 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 379 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 227 | $131 |
| Administration of Influenza Virus VaccineG0008 | 202 | $31 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 173 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 314 | 103 |
| Levothyroxine Sodium | 183 | 55 |
| Amlodipine Besylate | 95 | 25 |
| Trazodone Hcl | 80 | 20 |
| Ezetimibe | 78 | 28 |
| Tamsulosin Hcl | 70 | 23 |
| Duloxetine Hcl | 68 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2005-09-20
- Last updated
- 2024-04-25
- Certified
- 2024-04-25
Frequently asked questions
- What is Han-Jong Koh's NPI number?
- Han-Jong Koh's National Provider Identifier (NPI) is 1619962263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Han-Jong Koh's specialty?
- Han-Jong Koh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Han-Jong Koh located?
- Han-Jong Koh's practice location on file with NPPES is 224d Cornwall St Nw, Leesburg, VA 20176-2700.
- What is Han-Jong Koh's phone number?
- The practice phone number listed in the NPPES registry for Han-Jong Koh is (703) 737-7622.
- Does Han-Jong Koh accept Medicare?
- Han-Jong Koh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Han-Jong Koh's NPI active?
- Yes — Han-Jong Koh's NPI (1619962263) is active in the NPPES registry as of the last update on 2024-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.