Allen Lytton Stark, MD
Psychiatry Physician · Lake Oswego, OR
Allen Lytton Stark, MD is a psychiatry physician with a practice address in Lake Oswego, Oregon, and NPI 1427125806, issued on Nov 29, 2006. Check the license (Oregon MD15722, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Allen Lytton Stark
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD15722 OR
E2875 TX
Self-reported in NPPES; status is on the state search - Practice location
- 340 Oswego Pointe Dr, Lake Oswego, OR 97034
- Phone
- (503) 635-9336
- Enumerated
- Nov 29, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (503) 635-5414
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 764 in Oregon → Look up another NPI →
Also registered at 340 Oswego Pointe Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carol Stark, MDPsychiatry Physician1518034990
Verify Allen Lytton Stark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD15722Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average psychiatry physician in 2024
277 Medicare Part D claims for 18 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Trazodone Hcl36 claims
- Dextroamphetamine-Amphetamine28 claims
- Bupropion Xl19 claims
- Venlafaxine Hcl Er19 claims
- Zaleplon15 claims
- Desvenlafaxine Succinate Er13 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.
Allen Lytton Stark among 764 psychiatry physician records in Oregon
Allen Lytton Stark, MD is one of 764 psychiatry physician records with a practice address in Oregon. 59% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 57% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2023 · 58% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Oregon
There are 764 psychiatry physician records in Oregon.
All 764 in Oregon → Every provider in Lake Oswego → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Rachel Rittman, MDLake Oswego, OR 970341982867123
- Carol Stark, MDLake Oswego, OR 970341518034990
- Erik Vanderlip, M.D.Lake Oswego, OR 970341306044524
- Malika Burman, M.D.Lake Oswego, OR 970351912123662
- Richard Cohen, M.D.Lake Oswego, OR 970351750377867
- Simon Glass, MDLake Oswego, OR 970351790883452
- Eric Goranson, M.D.Lake Oswego, OR 970351174795736
- Cheryn Grant, D.O.Lake Oswego, OR 970351053335414
Common questions
What is Allen Lytton Stark, MD's NPI number?
Allen Lytton Stark, MD's National Provider Identifier (NPI) is 1427125806, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allen Lytton Stark, MD located?
The NPPES record lists a practice address at 340 Oswego Pointe Dr, Lake Oswego, OR, 97034. Phone: (503) 635-9336. Providers update this record themselves, so call before visiting.
How can I verify Allen Lytton Stark, MD's license?
NPPES lists Oregon license number MD15722, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Allen Lytton Stark, MD prescribe under Medicare Part D?
In 2024, Allen Lytton Stark, MD had 277 Medicare Part D claims for 18 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.