David Thordarson, M.D.
NPI 1457363798 · Orthopaedic Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Thordarson, M.D. is a Orthopaedic Surgery Physician provider in Los Angeles, CA (NPI 1457363798).
Provider details
- NPI number
- 1457363798
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G56184 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,004 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 922 | $70 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 339 | $86 |
| Aspiration And/Or Injection of Fluid From Medium Joint20605 | 151 | $40 |
| Aspiration And/Or Injection of Fluid From Small Joint20600 | 125 | $42 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 112 | $70 |
| Injection Into Tendon Or Ligament20550 | 55 | $41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 68 | 21 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 53 | 27 |
| Gabapentin | 46 | 14 |
| Doxycycline Hyclate | 38 | 28 |
| Meloxicam | 37 | 11 |
| Diclofenac Sodium | 21 | — |
| Celecoxib | 19 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35,455 across 31 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Thordarson's NPI number?
- David Thordarson's National Provider Identifier (NPI) is 1457363798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Thordarson's specialty?
- David Thordarson is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is David Thordarson located?
- David Thordarson's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5310.
- What is David Thordarson's phone number?
- The practice phone number listed in the NPPES registry for David Thordarson is (323) 442-5860.
- Does David Thordarson accept Medicare?
- David Thordarson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Thordarson's NPI active?
- Yes — David Thordarson's NPI (1457363798) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.