Ji Yon Hwang-Ki, M.D.
NPI 1881899706 · Internal Medicine Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ji Yon Hwang-Ki, M.D. is a Internal Medicine Physician provider in Rockville, MD (NPI 1881899706).
Provider details
- NPI number
- 1881899706
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- D66159 (MD)
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
19 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
6,112 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 | 2,496 | $135 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 419 | $96 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 287 | $15 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 262 | $20 |
| Advance Care Planning, First 30 Minutes99497 | 259 | $84 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 251 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 614 | 156 |
| Losartan Potassium | 462 | 104 |
| Amlodipine Besylate | 455 | 122 |
| Levothyroxine Sodium | 315 | 69 |
| Metformin Hcl | 288 | 73 |
| Tamsulosin Hcl | 262 | 66 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$581 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
- 2007-06-20
- Last updated
- 2015-05-22
Frequently asked questions
- What is Ji Yon Hwang-Ki's NPI number?
- Ji Yon Hwang-Ki's National Provider Identifier (NPI) is 1881899706, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ji Yon Hwang-Ki's specialty?
- Ji Yon Hwang-Ki is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ji Yon Hwang-Ki located?
- Ji Yon Hwang-Ki's practice location on file with NPPES is 14804 Physicians Ln, Rockville, MD 20850-3941.
- What is Ji Yon Hwang-Ki's phone number?
- The practice phone number listed in the NPPES registry for Ji Yon Hwang-Ki is (301) 610-6630.
- Does Ji Yon Hwang-Ki accept Medicare?
- Ji Yon Hwang-Ki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ji Yon Hwang-Ki's NPI active?
- Yes — Ji Yon Hwang-Ki's NPI (1881899706) is active in the NPPES registry as of the last update on 2015-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.