Dr. Steve K. Kwak, MD

  • Vannuys, CA
  • Orthopedic surgeon
NPI1013131705PAC ID8224180435
Medicare services, 2024
8,889
Medicare patients, 2024
520
Part D claims, 2024
158
Publications
1
MIPS score, 2024
81
Practice address
15107 Vanowen St, Vannuys, CA 91405
Practice phone
Call (818) 782-6600
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Valley Presbyterian Hospital

Hospital · Vannuys, California

See all 15 affiliations

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Dr. Steve K. Kwak is an orthopedic surgeon in Vannuys, California

Dr. Kwak practices at Valley Presbyterian Hospital in Vannuys, California, part of Valley Presbyterian Hospital.

Dr. Kwak's NPI, 1013131705, was assigned on April 12, 2007. Dr. Kwak graduated from Rutgers New Jersey Medical School in 2004. Dr. Kwak holds California license A105407.

NPI and contact details
Medicare PAC ID
8224180435
NPI enumeration date
April 12, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(818) 782-6600
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
48
Medical school graduation
2004

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

Dr. Steve K. Kwak practices at Valley Presbyterian Hospital in Vannuys, California

Dr. Kwak's primary practice is Valley Presbyterian Hospital, at 15107 Vanowen St, Vannuys, CA 91405 in Los Angeles County. The practice phone is (818) 782-6600.

Source: Dmand AI Affiliation Data

Dr. Steve K. Kwak is affiliated with 13 sites of care and 2 medical groups

Dr. Kwak's primary practice is Valley Presbyterian Hospital in Vannuys, California, part of Valley Presbyterian Hospital. Dr. Kwak is also affiliated with Dignity Health - Northridge Hospital Medical Center. The medical group on file is UCLA Health. Dmand AI also links Dr. Kwak to 4 more hospitals, 5 home health agencies, 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group, each named with a free account.

See all 15 affiliations for Dr. Kwak

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

Dmand AI tracks the EHR system at Dr. Steve K. Kwak's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kwak practices, 13 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Valley Presbyterian HospitalAvailable with a free account
+12 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Steve K. Kwak is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Kwak's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Kwak is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Kwak's licenses on file in 4 states: California, Massachusetts, New Jersey and Rhode Island.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense A105407 · 2019 to 2027 · taxonomy 207X00000X
  • Massachusetts licenseLicense 221683
  • New Jersey license2010 to 2021
  • Rhode Island license2007 to 2008

Clinical focus

Dmand AI lists arthritis, bursitis, enthesopathy in arms, fluid in a joint, hip replacement, joint arthropathy, joint pain and knee arthroscopy among the conditions Dr. Kwak treats.

Orthopedic surgeons near Dr. Kwak

Counts of orthopedic surgeons 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. Steve K. Kwak billed Medicare for 8,889 services in 2024

CMS data shows 8,889 Medicare services from Dr. Kwak across 19 procedure codes in 2024, for 520 Medicare patients. Medicare paid $189,869 for them.

Medicare services, 20248,889
Medicare patients520
Paid by Medicare$189,869
Procedure codes19

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

  • 2023
  • 2024
Drugs given in the office
2023: 1,1022024: 7,430574%
Office and hospital visits
2023: 6142024: 69012%
Imaging
2023: 3322024: 45738%
Surgery
2023: 3052024: 3122%

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

  • In an office8,80799%
  • In a facility821%

Dr. Kwak compared with the California median for orthopedic surgeons, 2024

  • Dr. Kwak
  • California median
Medicare services
8,889vs 68313.0 times
Medicare patients
520vs 2152.4 times
Part D claims
111vs 7059% above

Medians across 1,844 orthopedic surgeons in California 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. Steve K. Kwak treated 520 Medicare patients in 2024, average age 72

CMS counts 520 Medicare patients who saw Dr. Kwak in 2024. The largest group is 65 to 74, with 284 patients. 75% of them have arthritis, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kwak's median patient age at 61, with 55% women.

Medicare patients, 2024520
Average age72
Average risk score1.16
Also on Medicaid26%

Dr. Kwak's Medicare patients by age, 2024

Dr. Kwak's Medicare patients by sex, 2024

  • Women33665%
  • Men18435%

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

  1. Arthritis75%
  2. High cholesterol75%
  3. High blood pressure71%
  4. Diabetes34%
  5. Ischemic heart disease32%
  6. Mood disorders28%
  7. Anxiety27%
  8. Depression26%

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 61

Patient panel by sex, all payers

  • Women55%
  • Men45%

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

Dr. Steve K. Kwak wrote 158 Medicare Part D claims in 2024

In 2024, Dr. Kwak wrote 158 Medicare Part D claims for 94 patients. 100% of them were for generic drugs. CMS names the drug for 111 of them, across 5 drugs with 11 or more claims each, at $1,183 in total drug cost. In 2023, CMS named 161 claims across 8 drugs.

Part D claims, 2024158
Drugs named by CMS5
Total drug cost$1,183
Part D patients94

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

  • Opioids46%73 of 158 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: 1612024: 11131%

Drugs named by CMS: 5 in 2024, 8 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. Steve K. Kwak scored 81 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 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 32 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Kwak, more than 97% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Kwak's MIPS scores, performance year 2024

  • 81of 100Final score
  • 68.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 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

Knee replacement
72nd percentile39 procedures
Upper limb (arm) arthroscopy (minimally invasive joint repair)
78th percentile35 procedures
Lower limb (leg) arthroscopy (minimally invasive joint repair)
97th percentile32 procedures

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

Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)

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. Steve K. Kwak has 1 publication on record

Dmand AI links 1 paper to Dr. Kwak in 2014. Dr. Kwak's most frequent co-authors are Gregory R. Applegate, MD, Keith Wei Chan, MD and Richard D. Ferkel, MD.

Papers1

Dr. Kwak's most frequent co-authors

Recent publications by Dr. Kwak

See all 1 publications and co-authors

See who Dr. Kwak researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kwak works with, so you can find a warm path to the right orthopedic surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Steve K. Kwak received $68,853 in industry payments from 2016 to 2025

CMS Open Payments shows 503 general payments to Dr. Kwak from 49 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 32% of the total. Smith & Nephew, Inc. paid the most, $23,247.

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

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

$68.9Kin total
  • Consulting fees$22,20032%
  • Food and beverage$18,35627%
  • Travel and lodging$15,98923%
  • Speaker and faculty fees$8,01212%
  • Education$4,2966%

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. Steve K. Kwak has 1 award and honors on record

Dmand AI lists 1 award for Dr. Kwak, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Kwak

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Steve K. Kwak graduated from Rutgers New Jersey Medical School

Dr. Kwak graduated from Rutgers New Jersey Medical School in 2004. Dr. Kwak is a member of AAOS, AOSSM and AANA.

  1. Medical schoolRutgers New Jersey Medical School
  2. Board certified in orthopaedic sports medicineAmerican Board of Orthopaedic Surgery
  3. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. Steve K. Kwak accepts plans from 15 insurance carriers

Dr. Kwak is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

Plan types Dr. Kwak accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO8
  4. EPO4
  5. POS3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Steve K. 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Steve K. 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. Steve K. Kwak's NPI number?

Dr. Steve K. Kwak's NPI number is 1013131705. It was assigned on April 12, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Steve K. Kwak?

Dr. Steve K. Kwak is an orthopedic surgeon in Vannuys, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Steve K. Kwak practice?

Dr. Kwak practices at 15107 Vanowen St, Vannuys, CA 91405. Dr. Kwak's primary practice is Valley Presbyterian Hospital in Vannuys, California, part of Valley Presbyterian Hospital. Dmand AI also links Dr. Kwak to 4 hospitals, 5 home health agencies, 1 group practice or clinic, 1 ambulatory surgery center and 1 medical group.

What is Dr. Steve K. Kwak's office phone number?

The practice phone on file for Dr. Kwak is (818) 782-6600.

What is Dr. Steve K. Kwak's medical license number?

Dr. Kwak holds California license A105407, one of the licenses on file in 4 states.

Which states has Dr. Steve K. Kwak been licensed in?

Dmand AI has state licenses on file for Dr. Kwak in California (2019 to 2027), Massachusetts, New Jersey (2010 to 2021) and Rhode Island (2007 to 2008).

Which hospitals is Dr. Steve K. Kwak affiliated with?

Dr. Kwak practices at Valley Presbyterian Hospital in Vannuys, California. Dr. Kwak is also affiliated with Dignity Health - Northridge Hospital Medical Center. Dmand AI links Dr. Kwak to 4 more hospitals.

What medical group is Dr. Steve K. Kwak part of?

Dr. Kwak is linked to UCLA Health. Dmand AI links Dr. Kwak to 1 more medical group.

Does Dr. Steve K. Kwak accept Medicare?

Yes. CMS data shows Dr. Kwak billed Medicare for 8,889 services in 2024, and Dr. Kwak accepts Medicare assignment.

What is Dr. Steve K. Kwak's MIPS score?

Dr. Kwak's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Steve K. Kwak see?

CMS counts 520 Medicare patients who saw Dr. Kwak in 2024, with an average age of 72.

Is Dr. Steve K. Kwak board certified?

Yes. Dr. Kwak is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery.

What services does Dr. Steve K. Kwak bill to Medicare?

In 2024, Dr. Kwak's most billed Medicare services were injected or infused drug (J1010), injected or infused drug (J3304) and office visit, established patient (99214).

Where did Dr. Steve K. Kwak go to medical school?

Dr. Kwak graduated from Rutgers New Jersey Medical School in 2004.

What drugs does Dr. Steve K. Kwak prescribe most?

In 2024 Medicare Part D data, Dr. Kwak's most prescribed drugs by claims were Diclofenac Sodium, Hydrocodone-Acetaminophen and Tramadol HCl.

Has Dr. Steve K. Kwak received payments from drug or device companies?

CMS Open Payments shows $68,853 in general payments to Dr. Kwak from 49 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.

How long has Dr. Steve K. Kwak been practicing?

Dr. Kwak graduated from medical school in 2004, 22 years ago.

Does Dr. Steve K. Kwak do research?

Dmand AI links 1 publication to Dr. Kwak.

Who does Dr. Steve K. Kwak publish with?

Dr. Kwak's most frequent co-authors are Gregory R. Applegate, MD (1 shared paper), Keith Wei Chan, MD (1 shared paper) and Richard D. Ferkel, MD (1 shared paper).

What insurance does Dr. Steve K. Kwak accept?

Dr. Kwak is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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