Physician Profile
Ji Yon Hwang-Ki, M.D. practices internal medicine in Rockville, MD. According to Medicare claims data, Ji Yon cared for 3,376 Medicare patients across 6,430 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report. The provider's National Provider Identifier (NPI) is 1881899706.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
14804 PHYSICIANS LN SUITE 121
Rockville, MD 20850
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
6,430 services · 3,376 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
287 | More than most peers in Internal Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
211 | More often than most peers in Internal Medicine |
| Test for balance and posture | Treatment | 92548 |
201 | More than most peers in Internal Medicine |
| Complete ultrasound study of arm and leg arteries | Treatment | 93923 |
185 | More than most peers in Internal Medicine |
| Electrocardiogram (ecg) 1 to 3 leads with review by physician | Treatment | 93040 |
171 | More than most peers in Internal Medicine |
| Testing of autonomic nervous system function and heart rate response to deep breathing | Treatment | 95921 |
168 | More often than most peers in Internal Medicine |
| Testing of autonomic (sympathetic) nervous system function | Treatment | 95923 |
167 | More than most peers in Internal Medicine |
| Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage | Treatment | 90656 |
104 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
66 | As often as other peers in Internal Medicine |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
20 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Ji Yon Hwang-Ki is an internist in Rockville, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Ji Yon Hwang-Ki is listed at 14804 Physicians Ln Suite 121, Rockville, MD 20850. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (301) 610-6630. Contact the office directly to confirm availability and scheduling.
NPI registry
Ji Yon Hwang-Ki's National Provider Identifier is 1881899706. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Ji Yon Hwang-Ki attended Other, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
Ji Yon Hwang-Ki has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Ji Yon Hwang-Ki provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Ji Yon Hwang-Ki. If this is you, claiming it is free.
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