Lawrence S. Barnett, MD
Orthopaedic Surgery Physician · Orange, CA
Lawrence S. Barnett, MD is an orthopaedic surgery physician with a practice address in Orange, California, and NPI 1386631406, issued on Oct 4, 2005. Check the license (California G8833, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lawrence S. Barnett
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- G8833 CA
Self-reported in NPPES; status is on the state search - Practice location
- 280 S Main St, Orange, CA 92868
- Phone
- (714) 634-4567
- Enumerated
- Oct 4, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (714) 634-4569
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 280 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie AdairPhysician Assistant1538506134
- Hazel Ando, A.T.,C.Athletic Trainer1851336416
- Steven Barnett, MDOrthopaedic Surgery Physician1750378030
- Paul Beck, MDOrthopaedic Surgery Physician1356322879
- Laura Bertsch, PA-CPhysician Assistant1881283299
- Frank Cheng, PT, DPTPhysical Therapist1215639505
Verify Lawrence S. Barnett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G8833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
73 Medicare Part D claims for 20 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 52.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Lawrence S. Barnett among 2,276 orthopaedic surgery physician records in California
Lawrence S. Barnett, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Orange → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Steven Barnett, MDOrange, CA 928681750378030
- Paul Beck, MDOrange, CA 928681356322879
- Peter Birnbaum, D.O. INC.Orange, CA 928681538267042
- Michael Gillman, M.D.Orange, CA 928681275536633
- Robert Gorab, MDOrange, CA 928681326035601
- Robert Macarthur, MDOrange, CA 928681508949470
- William McMaster, M.D.Orange, CA 928681336175058
- Pablo Prietto, MDOrange, CA 928681073500351
Common questions
What is Lawrence S. Barnett, MD's NPI number?
Lawrence S. Barnett, MD's National Provider Identifier (NPI) is 1386631406, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Lawrence S. Barnett, MD located?
The NPPES record lists a practice address at 280 S Main St, Orange, CA, 92868. Phone: (714) 634-4567. Providers update this record themselves, so call before visiting.
How can I verify Lawrence S. Barnett, MD's license?
NPPES lists California license number G8833, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lawrence S. Barnett, MD prescribe under Medicare Part D?
In 2024, Lawrence S. Barnett, MD had 73 Medicare Part D claims for 20 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Lawrence S. Barnett, MD's MIPS final score?
The 2023 MIPS final score is 52.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.