Robert L. Samson, M.D.
Orthopaedic Surgery Physician · Calabasas, CA
Robert L. Samson, M.D. is an orthopaedic surgery physician with a practice address in Calabasas, California, and NPI 1407999170, issued on Feb 14, 2007. Check the license (California A24781, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert L. Samson
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A24781 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5375 Fremantle Lane, Calabasas, CA 91302
- Phone
- (818) 888-1430
- Enumerated
- Feb 14, 2007
- Record last updated
- Apr 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (818) 888-7430
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Verify Robert L. Samson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A24781Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
28 Medicare Part D claims, 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.
Robert L. Samson among 2,276 orthopaedic surgery physician records in California
Robert L. Samson, M.D. 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 35% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2017 · 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 Calabasas → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Bernard Diamond, MDWest Hills, CA 913071154315000
- Taylor Hobson, M.D.West Hills, CA 913071104357763
- Michael Lee, M.D.West Hills, CA 913071013994896
- Johnny Li, M.D.West Hills, CA 913071124004965
- Kevin Nadel, M.D.West Hills, CA 913071407822935
- William Rumack, M.D.West Hills, CA 913071740257542
- Keith Brookenthal, MDEncino, CA 913161437118163
- Clifford Kahn, M.D.Encino, CA 913161619958626
Common questions
What is Robert L. Samson, M.D.'s NPI number?
Robert L. Samson, M.D.'s National Provider Identifier (NPI) is 1407999170, issued on Feb 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert L. Samson, M.D. located?
The NPPES record lists a practice address at 5375 Fremantle Lane, Calabasas, CA, 91302. Phone: (818) 888-1430. Providers update this record themselves, so call before visiting.
How can I verify Robert L. Samson, M.D.'s license?
NPPES lists California license number A24781, 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 Robert L. Samson, M.D. prescribe under Medicare Part D?
In 2024, Robert L. Samson, M.D. had 28 Medicare Part D claims; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
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.