Mark S. Samson, MD
Psychiatry Physician · Olympia, WA
Mark S. Samson, MD is a psychiatry physician with a practice address in Olympia, Washington, and NPI 1477569705, issued on Jul 31, 2006. Check the license (Washington MD37632, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mark S. Samson
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD37632 WA
Self-reported in NPPES; status is on the state search - Practice location
- 700 Lilly RD NE, Olympia, WA 98506
- Phone
- (360) 923-7000
- Enumerated
- Jul 31, 2006
- Record last updated
- May 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (360) 412-4982
- Medicaid ID
- MD4642 AK
- Medicare enrollment
- Enrolled (PECOS I20100219000715); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 700 Lilly RD NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon Abegg, M.D.Psychiatry Physician1437291143
- Mary Aesoph, AUDAudiologist1710233978
- Krystle Agtarap, PASurgical Physician Assistant1972907590
- Elizabeth Alberti, P.A.Physician Assistant1215087937
- Stephen Albrecht, M.D.Family Medicine Physician1538286026
- Amber An, DOGeriatric Medicine (Internal Medicine) Physician1538335443
Verify Mark S. Samson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD37632Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average psychiatry physician in 2024
2,160 Medicare Part D claims for 229 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Trazodone Hcl165 claims
- Gabapentin145 claims
- Lamotrigine142 claims
- Duloxetine Hcl133 claims
- Aripiprazole111 claims
- Buspirone Hcl105 claims
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.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonSilverdale, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark S. Samson among 1,195 psychiatry physician records in Washington
Mark S. Samson, MD is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1997 · median 2007 among the 462 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Olympia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Sharon Abegg, M.D.Olympia, WA 985061437291143
- Lorraine Barton-Haas, M.D.Olympia, WA 985061407891997
- George Chappell, MDOlympia, WA 985061376633156
- Douglas Green, M.D.Olympia, WA 985061306901723
- John Kamin, M.D.Olympia, WA 985061558433185
- Sarah LeisenringOlympia, WA 985061609844836
- Sara Lerner, M.D.Olympia, WA 985061801940630
- Stephen Lykins, MDOlympia, WA 985061194805390
Common questions
What is Mark S. Samson, MD's NPI number?
Mark S. Samson, MD's National Provider Identifier (NPI) is 1477569705, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Samson, MD located?
The NPPES record lists a practice address at 700 Lilly RD NE, Olympia, WA, 98506. Phone: (360) 923-7000. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Samson, MD's license?
NPPES lists Washington license number MD37632, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark S. Samson, MD prescribe under Medicare Part D?
In 2024, Mark S. Samson, MD had 2,160 Medicare Part D claims for 229 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.