Dr. Junsoo Alexander Lee , MD
Internal Medicine • Reston, VA
1830 Town Center Dr Ste 405
Reston, VA 201903218
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on May 19, 2009; this date does not establish years in practice.
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Published CMS data list 2,415 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 596 service units.
- 93010 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only: 588 service units.
- G2211 — 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's: 339 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 17 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,737 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 251 prescription fills, including refills.
- Metoprolol Succinate — 232 prescription fills, including refills.
- Eliquis (Apixaban) — 148 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 29 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Reston, VA (2024, 25 clinicians with data). Median for this group: 721. Middle half: 361 to 1,284.
More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: 748. Middle half: 335 to 1,431.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,809 in 2020 to 2,415 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1830 Town Center Dr Ste 405
Reston, VA 201903218
CMS Doctors and Clinicians lists 2 distinct group names: Privia Medical Group, Llc; Reston Hospital Center Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2009
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
1,093 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $233,982 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $174,526 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
4,865 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$353,933 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $180.86 across 3 records.
By nature of payment
- Food and Beverage: $180.86 across 3 records.
Reporting-company totals
- Medtronic, Inc.: $137.95 across 1 record.
- BridgeBio Pharma, Inc.: $25.64 across 1 record.
- Bristol Myers Squibb Company: $17.27 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Lee has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Lee as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Reston and Virginia
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Reston, VA (2024, 25 clinicians with data). Median for this group: 721. Middle half: 361 to 1,284.
More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: 748. Middle half: 335 to 1,431.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Reston, VA (2024, 25 clinicians with data). Median for this group: $66,289. Middle half: $34,695 to $160,554.
A higher Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: $73,309. Middle half: $32,676 to $134,131.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Internal Medicine in Reston, VA (2024, 25 clinicians with data). Median for this group: $52,477. Middle half: $25,581 to $123,212.
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Virginia (2024, 2,010 clinicians with data). Median for this group: $56,392. Middle half: $24,672 to $102,762.
Medicare Part D prescriptions
More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Reston, VA (2024, 32 clinicians with data). Median for this group: 1,251. Middle half: 196 to 2,636.
More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Virginia (2024, 2,088 clinicians with data). Median for this group: 684. Middle half: 116 to 4,028.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Reston, VA (2024, 32 clinicians with data). Median for this group: $78,722. Middle half: $3,825 to $160,602.
A higher Part D drug cost than 75% of clinicians listed under Internal Medicine in Virginia (2024, 2,088 clinicians with data). Median for this group: $49,170. Middle half: $2,703 to $324,085.
56 active clinicians are listed under Internal Medicine with a practice address in Reston, VA (3,603 in Virginia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Reston
23.2% of these 56 clinicians have the CMS telehealth indicator.
50% of these 56 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 33% from 1,809 in 2020 to 2,415 in 2024.
- 2020: 1,809
- 2021: 2,129
- 2022: 2,465
- 2023: 2,108
- 2024: 2,415
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Medicare-allowed amount
Medicare-allowed amount increased 14% from $205,360 in 2020 to $233,982 in 2024.
- 2020: $205,360
- 2021: $249,130
- 2022: $205,327
- 2023: $186,070
- 2024: $233,982
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Paid by Medicare
Paid by Medicare increased 11% from $157,133 in 2020 to $174,526 in 2024.
- 2020: $157,133
- 2021: $191,286
- 2022: $155,157
- 2023: $136,581
- 2024: $174,526
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 98% from 876 in 2020 to 1,737 in 2024.
- 2020: 876
- 2021: 860
- 2022: 960
- 2023: 1,148
- 2024: 1,737
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30-day fills
30-day fills increased 107% from 2,346 in 2020 to 4,865 in 2024.
- 2020: 2,346
- 2021: 2,451
- 2022: 2,662
- 2023: 3,237
- 2024: 4,865
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Part D drug cost
Part D drug cost increased 136% from $150,095 in 2020 to $353,933 in 2024.
- 2020: $150,095
- 2021: $165,267
- 2022: $187,034
- 2023: $221,287
- 2024: $353,933
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $326.64 in 2021 to $180.86 in 2025.
- 2021: $326.64
- 2022: $300.09
- 2023: $528.96
- 2024: $411.36
- 2025: $180.86
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $180.86.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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AURORA EV-ICD MRI SURESCAN | General | $137.95 |
| BridgeBio Pharma, Inc. |
Food and Beverage
In-kind items and services
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Attruby | General | $25.64 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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CAMZYOS | General | $17.27 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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596 | 342 | $304.00 | $140.47 |
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93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
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588 | 513 | $96.20 | $8.46 |
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G2211
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's
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339 | 254 | $44.00 | $17.55 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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307 | 269 | $67.00 | $15.93 |
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93306
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
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175 | 164 | $671.00 | $213.43 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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68 | 51 | $199.00 | $83.27 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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57 | 57 | $466.00 | $184.10 |
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93458
Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist
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53 | 53 | $899.00 | $289.15 |
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93880
Ultrasound of both sides of head and neck blood flow
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45 | 45 | $569.00 | $207.67 |
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93306
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
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37 | 37 | $519.00 | $71.79 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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29 | 29 | $381.00 | $138.39 |
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92928
Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch
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26 | 25 | $1721.00 | $608.42 |
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93228
Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional
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25 | 25 | $73.00 | $26.60 |
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93229
Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional
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25 | 25 | $2011.00 | $945.61 |
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93015
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician
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17 | 17 | $260.00 | $74.40 |
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93456
Insertion of tube in right heart chambers and coronary artery for diagnosis with review by radiologist
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16 | 16 | $943.00 | $325.53 |
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93454
Insertion of tube in coronary artery for diagnosis with review by radiologist
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12 | 11 | $737.00 | $250.31 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 251 | 21,777 | $2,253.10 | 89 |
| Metoprolol Succinate | Metoprolol Succinate | 232 | 20,709 | $3,848.31 | 86 |
| Eliquis | Apixaban | 148 | 10,320 | $197,209.41 | 46 |
| Losartan Potassium | Losartan Potassium | 127 | 11,370 | $1,535.02 | 44 |
| Carvedilol | Carvedilol | 120 | 10,323 | $1,008.93 | 37 |
| Amlodipine Besylate | Amlodipine Besylate | 105 | 8,820 | $850.45 | 33 |
| Clopidogrel | Clopidogrel Bisulfate | 90 | 8,039 | $908.20 | 35 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 79 | 7,096 | $1,668.45 | 26 |
| Furosemide | Furosemide | 72 | 5,883 | $492.58 | 37 |
| Lisinopril | Lisinopril | 67 | 6,070 | $541.69 | 23 |
| Metoprolol Tartrate | Metoprolol Tartrate | 48 | 3,462 | $304.56 | 26 |
| Ezetimibe | Ezetimibe | 36 | 2,902 | $592.83 | 13 |
| Diltiazem 24hr Er (Cd) | Diltiazem Hcl | 35 | 3,090 | $1,603.34 | — |
| Pravastatin Sodium | Pravastatin Sodium | 33 | 3,010 | $542.27 | — |
| Valsartan | Valsartan | 32 | 2,880 | $708.55 | 11 |
| Xarelto | Rivaroxaban | 29 | 2,610 | $47,318.95 | — |
| Repatha Sureclick | Evolocumab | 28 | 1,848 | $36,451.08 | — |
| Vascepa | Icosapent Ethyl | 27 | 1,110 | $13,278.39 | — |
| Nitroglycerin | Nitroglycerin | 24 | 754 | $264.13 | 14 |
| Entresto | Sacubitril/Valsartan | 22 | 1,775 | $39,008.47 | — |
| Nifedipine Er | Nifedipine | 20 | 1,800 | $680.00 | — |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 18 | 1,500 | $201.01 | 11 |
| Simvastatin | Simvastatin | 16 | 1,440 | $157.74 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 15 | 1,321 | $79.36 | — |
| Hydralazine Hcl | Hydralazine Hcl | 14 | 1,140 | $122.78 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207RC0000X
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
NUCC Taxonomy Code: 207RI0011X
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERVENTIONAL CARDIOLOGY
I20170602002030
VA
3072769140
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Privia Medical Group, Llc
9470 Annapolis Rd, Lanham, MD 207063022
Phone: 2028321800
Reston Hospital Center Llc
1850 Town Ctr Pkwy, Reston, VA 201903204
Phone: 7036899000
Privia Medical Group, Llc
1850 Town Ctr Pkwy, Reston, VA 201903219
Phone: 7036899000
Privia Medical Group, Llc
1830 Town Ctr Dr, Reston, VA 201903292
Phone: 7034813165
Privia Medical Group, Llc
950 N Glebe Rd, Arlington, VA 222034173
Privia Medical Group, Llc
3300 Gallows Rd, Falls Church, VA 220423307
Privia Medical Group, Llc
950 N Glebe Rd, Arlington, VA 222034173
Privia Medical Group, Llc
8644 Sudley Rd, Manassas, VA 201104425
Phone: 5713668845
Privia Medical Group, Llc
44084 Riverside Pkwy, Lansdowne, VA 201765158
Phone: 7038583185
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.), Master of Science
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Internal Medicine (license number reported to NPPES: VA 0101250996)
NPI status registered as active in NPPES database
Registered at 1830 TOWN CENTER DR STE 405, RESTON, VA 201903218 (Tel: 7034819191)
Registered at 1830 TOWN CENTER DR STE 405, RESTON, VA 201903218 (Tel: (703) 481-9191)
Recorded as JUNSOO LEE, MD
Internal Medicine (license number reported to NPPES: VA 0101250996)
Internal Medicine (license number reported to NPPES: VA 0101250996)
NPI status registered as active in NPPES database
Registered at 601 ELMWOOD AVE, ROCHESTER, NY 146420001 (Tel: 4088285302)
Registered at 601 ELMWOOD AVE, BOX 679, ROCHESTER, NY 146420001 (Tel: 4088285302)
Recorded as JUNSOO LEE, MD
Internal Medicine (license number reported to NPPES: NY 2776541)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Reston
- Dr. Meliha Shah, MD
- Dr. Lo An Nguyen, MD
- Dr. Tarique Zahir, MD
- Dr. Cindy Anderson, MD
- Dr. Reema Chaudri, MD
- Dr. Almouhannad Alhammood, MD
Mailing Address
1830 Town Center Dr Ste 405
Reston, VA 201903218
Phone: 7034819191