Dr. Terry Yun-Ho Kwak, MD

  • Rockville, MD
  • Ophthalmologist
NPI1497708184PAC ID7214940766
Medicare services, 2024
4,139
Medicare patients, 2024
1,205
Part D claims, 2024
1,914
MIPS score, 2024
80
Industry payments
$8,029
Practice address
15005 Shady Grove Road Suite 200, Rockville, MD 20850
Practice phone
Call (301) 340-8099
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Gastrointestinal Endoscopy Associates

Surgery Center - Medicare-Certified · Rockville, Maryland

See all 4 affiliations

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Dr. Terry Yun-Ho Kwak is an ophthalmologist in Rockville, Maryland

Dr. Kwak practices at Gastrointestinal Endoscopy Associates in Rockville, Maryland.

Dr. Kwak's NPI, 1497708184, was assigned on May 17, 2006. Dr. Kwak graduated from Jefferson Medical College of Thomas Jefferson University in 2001. Dr. Kwak holds Maryland license D0068866.

NPI and contact details
Medicare PAC ID
7214940766
NPI enumeration date
May 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(301) 340-8099
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Terry Yun-Ho Kwak practices at Gastrointestinal Endoscopy Associates in Rockville, Maryland

Dr. Kwak's primary practice is Gastrointestinal Endoscopy Associates, at 15005 Shady Grove Road Suite 200, Rockville, MD 20850. The practice phone is (301) 340-8099.

  • Gastrointestinal Endoscopy Associates
    15005 Shady Grove Road Suite 200, Rockville, MD 20850Phone(301) 340-8099

Source: Dmand AI Affiliation Data

Dr. Terry Yun-Ho Kwak is affiliated with 3 sites of care and 1 medical group

Dr. Kwak's primary practice is Gastrointestinal Endoscopy Associates in Rockville, Maryland. Dmand AI also links Dr. Kwak to 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Kwak

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Terry Yun-Ho Kwak's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kwak practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Gastrointestinal Endoscopy AssociatesAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Terry Yun-Ho Kwak is one of 471 ophthalmologists in Maryland

Ophthalmology is Dr. Kwak's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Kwak's licenses on file in 2 states: Maryland and Delaware.

Specialties and state licenses

  • Ophthalmology, MarylandPrimaryLicense D0068866 · taxonomy 207W00000X
  • Optometrist, DelawareLicense TP-0003219 · taxonomy 152W00000X

Ophthalmologists near Dr. Kwak

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Terry Yun-Ho Kwak billed Medicare for 4,139 services in 2024

CMS data shows 4,139 Medicare services from Dr. Kwak across 18 procedure codes in 2024, for 1,205 Medicare patients. Medicare paid $302,591 for them.

Medicare services, 20244,139
Medicare patients1,205
Paid by Medicare$302,591
Procedure codes18

Dr. Kwak's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 3,2592024: 3,2281%
Office and hospital visits
2023: 4162024: 67262%
Surgery
2023: 1902024: 1777%
Imaging
2023: 632024: 622%
Lab and pathology
2023: 482024: 0100%

Where Dr. Kwak's Medicare services took place, 2024

  • In an office3,99296%
  • In a facility1474%

Dr. Kwak compared with the Maryland median for ophthalmologists, 2024

  • Dr. Kwak
  • Maryland median
Medicare services
4,139vs 1,3883.0 times
Medicare patients
1,205vs 62393% above
Part D claims
1,845vs 3804.9 times

Medians across 487 ophthalmologists in Maryland with Dmand AI profiles that report each measure.

Dr. Kwak's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Kwak

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Terry Yun-Ho Kwak treated 1,205 Medicare patients in 2024, average age 77

CMS counts 1,205 Medicare patients who saw Dr. Kwak in 2024. The largest group is 75 to 84, with 515 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kwak's median patient age at 74, with 61% women.

Medicare patients, 20241,205
Average age77
Average risk score1.00
Also on Medicaid18%

Dr. Kwak's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Kwak's Medicare patients by sex, 2024

  • Women74161%
  • Men46439%

Chronic conditions among Dr. Kwak's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis44%
  4. Diabetes37%
  5. Osteoporosis25%
  6. Ischemic heart disease24%
  7. Mood disorders20%
  8. Chronic kidney disease18%

Share of Medicare patients with each condition. A patient can have several.

Dr. Kwak's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women61%
  • Men37%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Terry Yun-Ho Kwak wrote 1,914 Medicare Part D claims in 2024

In 2024, Dr. Kwak wrote 1,914 Medicare Part D claims for 413 patients. CMS names the drug for 1,845 of them, across 27 drugs with 11 or more claims each, at $786,914 in total drug cost. In 2023, CMS named 1,714 claims across 21 drugs.

Part D claims, 20241,914
Drugs named by CMS27
Total drug cost$786,914
Part D patients413

Dr. Kwak's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Kwak's Part D claims, 2024

  • Antibiotics1%12 of 1,914 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,7142024: 1,8458%

Drugs named by CMS: 27 in 2024, 21 in 2023.

See all prescribing by Dr. Kwak

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Terry Yun-Ho Kwak scored 80 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Kwak for performance year 2024, reported as part of a group. Dr. Kwak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 174 procedures of cataract surgery by Dr. Kwak, more than 82% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Kwak's MIPS scores, performance year 2024

  • 80of 100Final score
  • 100of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 33of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Kwak ranks in Medicare procedure volume

Cataract surgery
82nd percentile174 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Terry Yun-Ho Kwak received $8,029 in industry payments from 2016 to 2025

CMS Open Payments shows 313 general payments to Dr. Kwak from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Alcon Laboratories Inc paid the most, $1,698.

General payments to Dr. Kwak by program year, 2016 to 2025

General payments to Dr. Kwak by kind, 2016 to 2025

$8Kin total
  • Food and beverage$7,01687%
  • Travel and lodging$7229%
  • Speaker and faculty fees$1502%
  • Education$1412%

Companies that paid Dr. Kwak the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Kwak

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Terry Yun-Ho Kwak graduated from Jefferson Medical College of Thomas Jefferson University

Dr. Kwak graduated from Jefferson Medical College of Thomas Jefferson University in 2001.

  1. Medical schoolJefferson Medical College of Thomas Jefferson University

Source: Dmand AI Professional Profile Data

Sources for Dr. Terry Yun-Ho Kwak's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Terry Yun-Ho Kwak

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Terry Yun-Ho Kwak's NPI number?

Dr. Terry Yun-Ho Kwak's NPI number is 1497708184. It was assigned on May 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Terry Yun-Ho Kwak?

Dr. Terry Yun-Ho Kwak is an ophthalmologist in Rockville, Maryland. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Terry Yun-Ho Kwak practice?

Dr. Kwak practices at 15005 Shady Grove Road Suite 200, Rockville, MD 20850. Dr. Kwak's primary practice is Gastrointestinal Endoscopy Associates in Rockville, Maryland. Dmand AI also links Dr. Kwak to 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group.

What is Dr. Terry Yun-Ho Kwak's office phone number?

The practice phone on file for Dr. Kwak is (301) 340-8099.

What is Dr. Terry Yun-Ho Kwak's medical license number?

Dr. Kwak holds Maryland license D0068866, one of the licenses on file in 2 states.

Which states has Dr. Terry Yun-Ho Kwak been licensed in?

Dmand AI has state licenses on file for Dr. Kwak in Maryland and Delaware.

Does Dr. Terry Yun-Ho Kwak accept Medicare?

Yes. CMS data shows Dr. Kwak billed Medicare for 4,139 services in 2024, and Dr. Kwak accepts Medicare assignment.

What is Dr. Terry Yun-Ho Kwak's MIPS score?

Dr. Kwak's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.

How many Medicare patients does Dr. Terry Yun-Ho Kwak see?

CMS counts 1,205 Medicare patients who saw Dr. Kwak in 2024, with an average age of 77.

What services does Dr. Terry Yun-Ho Kwak bill to Medicare?

In 2024, Dr. Kwak's most billed Medicare services were eye exam or test (92014), office visit, established patient (99214) and eye exam or test (92020).

Show 4 more questionsShow fewer questions

Where did Dr. Terry Yun-Ho Kwak go to medical school?

Dr. Kwak graduated from Jefferson Medical College of Thomas Jefferson University in 2001.

What drugs does Dr. Terry Yun-Ho Kwak prescribe most?

In 2024 Medicare Part D data, Dr. Kwak's most prescribed drugs by claims were Restasis, Latanoprost and Cyclosporine.

Has Dr. Terry Yun-Ho Kwak received payments from drug or device companies?

CMS Open Payments shows $8,029 in general payments to Dr. Kwak from 27 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.

How long has Dr. Terry Yun-Ho Kwak been practicing?

Dr. Kwak graduated from medical school in 2001, 25 years ago.

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