Dr. David B. Thordarson, MD

  • West Hollywood, CA
  • Orthopedic surgeon
NPI1457363798PAC ID0345390050
Medicare services, 2024
2,004
Medicare patients, 2024
811
Part D claims, 2024
368
Publications
21
MIPS score, 2024
93
Practice address
8700 Beverly Blvd, Los Angeles, CA 90048
Practice phone
Call (310) 423-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Cedars-Sinai Medical Center

Hospital · Los Angeles, California

See all 8 affiliations

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Dr. David B. Thordarson is an orthopedic surgeon in West Hollywood, California

Dr. Thordarson practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.

Dr. Thordarson's NPI, 1457363798, was assigned on August 13, 2006. Dr. Thordarson graduated from David Geffen School of Medicine at UCLA in 1984. Dr. Thordarson holds California license G56184.

NPI and contact details
Medicare PAC ID
0345390050
NPI enumeration date
August 13, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 423-5000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
68
Medical school graduation
1984

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

Dr. David B. Thordarson practices at Cedars-Sinai Medical Center in Los Angeles, California

Dr. Thordarson's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.

Source: Dmand AI Affiliation Data

Dr. David B. Thordarson is affiliated with 5 sites of care and 3 medical groups

Dr. Thordarson's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dr. Thordarson is also affiliated with Dignity Health - Marian Regional Medical Center. The medical group on file is Cedars-Sinai Medical Center. Dmand AI also links Dr. Thordarson to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.

See all 8 affiliations for Dr. Thordarson

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

Dmand AI tracks the EHR system at Dr. David B. Thordarson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thordarson practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Cedars-Sinai Medical CenterAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. David B. Thordarson is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Thordarson's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Thordarson is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Thordarson is licensed in California.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense G56184 · 1985 to 2027 · taxonomy 207X00000X

Clinical focus

Dmand AI lists arthritis, broken or dislocated ankle/ or foot, bursitis, enthesopathy in foot or ankle, fluid in a joint, joint pain, knee injury and leg, ankle or foot fracture among the conditions Dr. Thordarson treats.

Orthopedic surgeons near Dr. Thordarson

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. David B. Thordarson billed Medicare for 2,004 services in 2024

CMS data shows 2,004 Medicare services from Dr. Thordarson across 19 procedure codes in 2024, for 811 Medicare patients. Medicare paid $163,590 for them.

Medicare services, 20242,004
Medicare patients811
Paid by Medicare$163,590
Procedure codes19

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

  • 2023
  • 2024
Office and hospital visits
2023: 1,3222024: 1,4016%
Surgery
2023: 5332024: 60313%

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

  • In an office1,75187%
  • In a facility25313%

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

  • Dr. Thordarson
  • California median
Medicare services
2,004vs 6832.9 times
Medicare patients
811vs 2153.8 times
Part D claims
299vs 704.3 times

Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.

Dr. Thordarson'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. Thordarson

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

Dr. David B. Thordarson treated 811 Medicare patients in 2024, average age 73

CMS counts 811 Medicare patients who saw Dr. Thordarson in 2024. The largest group is 65 to 74, with 415 patients. 75% of them have arthritis, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Thordarson's median patient age at 71, with 63% women.

Medicare patients, 2024811
Average age73
Average risk score1.15
Also on Medicaid10%

Dr. Thordarson's Medicare patients by age, 2024

Dr. Thordarson's Medicare patients by sex, 2024

  • Women53866%
  • Men27334%

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

  1. Arthritis75%
  2. High cholesterol75%
  3. High blood pressure68%
  4. Ischemic heart disease33%
  5. Osteoporosis32%
  6. Anxiety27%
  7. Mood disorders27%
  8. Diabetes26%

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

Dr. Thordarson's patients across all payers

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

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women63%
  • Men36%

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

Dr. David B. Thordarson wrote 368 Medicare Part D claims in 2024

In 2024, Dr. Thordarson wrote 368 Medicare Part D claims for 122 patients. 97% of them were for generic drugs. CMS names the drug for 299 of them, across 8 drugs with 11 or more claims each, at $5,055 in total drug cost. In 2023, CMS named 250 claims across 7 drugs.

Part D claims, 2024368
Drugs named by CMS8
Total drug cost$5,055
Part D patients122

Dr. Thordarson's Part D claims by kind of drug, 2024

  • Generic358 claims97%
  • Brand-name and other10 claims3%

Dr. Thordarson'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. Thordarson's Part D claims, 2024

  • Opioids36%134 of 368 claims
  • Antibiotics12%44 of 368 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: 2502024: 29920%

Drugs named by CMS: 8 in 2024, 7 in 2023.

See all prescribing by Dr. Thordarson

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. David B. Thordarson scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Thordarson for performance year 2024, reported as part of a group. Dr. Thordarson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Thordarson as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Thordarson's MIPS scores, performance year 2024

  • 93of 100Final score
  • 77.8of 100Quality
  • 98of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 100Cost

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

Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 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. David B. Thordarson has 21 publications on record

Dmand AI links 21 papers to Dr. Thordarson, published from 2006 to 2023. 2020 was the busiest year, with 8. The most frequent topics are Ankle, Ankle Injuries and Ankle Joint. Dr. Thordarson has published most often in J Am Acad Orthop Surg. Dr. Thordarson's most frequent co-authors are Lew C. Schon, MD, Scott J. Ellis, MD and Jeffrey E. Johnson, MD.

Papers21
Years published2006 to 2023

Dr. Thordarson's papers by year, 2006 to 2023

Topics Dr. Thordarson writes about most

  • Ankle
  • Ankle Injuries
  • Ankle Joint
  • Cartilage, Articular

Dr. Thordarson's most frequent co-authors

Recent publications by Dr. Thordarson

See all 21 publications and co-authors

See who Dr. Thordarson researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thordarson 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. David B. Thordarson received $2,687,444 in industry payments from 2016 to 2025

CMS Open Payments shows 354 general payments to Dr. Thordarson from 25 drug and device companies from 2016 to 2025. Ownership or investment make up the largest share, 82% of the total. Paragon 28, Inc. paid the most, $2,291,369.

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

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

$2.7Min total
  • Ownership or investment$2,200,00082%
  • Consulting fees$348,67313%
  • Royalties and licenses$83,2763%
  • Travel and lodging$37,4041%
  • Other$16,8631%

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

Share is of all general payments to this clinician.

See all payments to Dr. Thordarson

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

Dr. David B. Thordarson graduated from David Geffen School of Medicine at UCLA

Dr. Thordarson graduated from David Geffen School of Medicine at UCLA in 1984.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in orthopaedic surgeryAmerican Board of Orthopaedic Surgery

Source: Dmand AI Professional Profile Data

Dr. David B. Thordarson accepts plans from 13 insurance carriers

Dr. Thordarson is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Thordarson accepts, by number of carriers

  1. PPO9
  2. Medicare7
  3. HMO6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. David B. Thordarson'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)
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. David B. Thordarson

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. David B. Thordarson's NPI number?

Dr. David B. Thordarson's NPI number is 1457363798. It was assigned on August 13, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. David B. Thordarson?

Dr. David B. Thordarson is an orthopedic surgeon in West Hollywood, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. David B. Thordarson practice?

Dr. Thordarson practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Thordarson's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Thordarson to 1 hospital, 2 group practices and clinics and 2 medical groups.

What is Dr. David B. Thordarson's office phone number?

The practice phone on file for Dr. Thordarson is (310) 423-5000.

What is Dr. David B. Thordarson's medical license number?

Dr. Thordarson holds California license G56184.

Which hospitals is Dr. David B. Thordarson affiliated with?

Dr. Thordarson practices at Cedars-Sinai Medical Center in Los Angeles, California. Dr. Thordarson is also affiliated with Dignity Health - Marian Regional Medical Center. Dmand AI links Dr. Thordarson to 1 more hospital.

What medical group is Dr. David B. Thordarson part of?

Dr. Thordarson is linked to Cedars-Sinai Medical Center. Dmand AI links Dr. Thordarson to 2 more medical groups.

Does Dr. David B. Thordarson accept Medicare?

Yes. CMS data shows Dr. Thordarson billed Medicare for 2,004 services in 2024, and Dr. Thordarson accepts Medicare assignment.

Does Dr. David B. Thordarson offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Thordarson as offering telehealth services.

What is Dr. David B. Thordarson's MIPS score?

Dr. Thordarson's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. David B. Thordarson see?

CMS counts 811 Medicare patients who saw Dr. Thordarson in 2024, with an average age of 73.

Is Dr. David B. Thordarson board certified?

Yes. Dr. Thordarson is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.

What services does Dr. David B. Thordarson bill to Medicare?

In 2024, Dr. Thordarson's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: bones and joints (20605).

Where did Dr. David B. Thordarson go to medical school?

Dr. Thordarson graduated from David Geffen School of Medicine at UCLA in 1984.

What drugs does Dr. David B. Thordarson prescribe most?

In 2024 Medicare Part D data, Dr. Thordarson's most prescribed drugs by claims were Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen and Gabapentin.

Has Dr. David B. Thordarson received payments from drug or device companies?

CMS Open Payments shows $2,687,444 in general payments to Dr. Thordarson from 25 companies from 2016 to 2025. The largest total came from Paragon 28, Inc.

How long has Dr. David B. Thordarson been practicing?

Dr. Thordarson graduated from medical school in 1984, 42 years ago.

Does Dr. David B. Thordarson do research?

Dmand AI links 21 publications to Dr. Thordarson, published from 2006 to 2023.

Who does Dr. David B. Thordarson publish with?

Dr. Thordarson's most frequent co-authors are Lew C. Schon, MD (6 shared papers), Scott J. Ellis, MD (5 shared papers) and Jeffrey E. Johnson, MD (5 shared papers).

What insurance does Dr. David B. Thordarson accept?

Dr. Thordarson is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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