Thien Chuong Richard Ly, MD
Psychiatry Physician · Corvallis, OR
Thien Chuong Richard Ly, MD is a psychiatry physician with a practice address in Corvallis, Oregon, and NPI 1093123051, issued on Jul 22, 2014. Check the license (Oregon MD189729, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thien Chuong Richard Ly
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD189729 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1112 NW Circle Blvd, Corvallis, OR 97330
- Phone
- (541) 768-1221
- Enumerated
- Jul 22, 2014
- Record last updated
- Aug 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20190812002048); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 764 in Oregon → Look up another NPI →
Also registered at 1112 NW Circle Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tyler Fanning, MDPsychiatry Physician1760987473
- Derek Gale, LPCMental Health Counselor1205957230
- Bakula Patel, RDHDental Hygienist1770871121
- Sharon Thwing, LCSWSocial Worker1598747305
Verify Thien Chuong Richard Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD189729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
46 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluoxetine Hcl12 claims
- Ziprasidone Hcl12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 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).
Bills Medicare through one group practice
- Good Samaritan Hospital CorvallisCorvallis, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thien Chuong Richard Ly among 764 psychiatry physician records in Oregon
Thien Chuong Richard Ly, 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 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2013 · median 2009 among the 300 with a school on file
- Record last updated2024 · 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).
60 psychiatry physician records list a practice address in Corvallis
They are 60 of the 4,096 NPPES records with a practice address in Corvallis, and 764 psychiatry physician records in Oregon.
All 764 in Oregon → Every provider in Corvallis → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kyle Bernheim, M.D.Corvallis, OR 973301316126709
- Mary Black, M.D.Corvallis, OR 973301528264207
- Allison Dark, MDCorvallis, OR 973301487856290
- Michael Delollis, MDCorvallis, OR 973301366440323
- James Douglas, M.D.Corvallis, OR 973301265525802
- Daniel Engle, M.D.Corvallis, OR 973301972544351
- Kenneth Erickson, M.D., PHDCorvallis, OR 973301639110331
- Jennifer Hamilton, M.D.Corvallis, OR 973301952347650
Common questions
What is Thien Chuong Richard Ly, MD's NPI number?
Thien Chuong Richard Ly, MD's National Provider Identifier (NPI) is 1093123051, issued on Jul 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Thien Chuong Richard Ly, MD located?
The NPPES record lists a practice address at 1112 NW Circle Blvd, Corvallis, OR, 97330. Phone: (541) 768-1221. Providers update this record themselves, so call before visiting.
How can I verify Thien Chuong Richard Ly, MD's license?
NPPES lists Oregon license number MD189729, 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 Thien Chuong Richard Ly, MD prescribe under Medicare Part D?
In 2024, Thien Chuong Richard Ly, MD had 46 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Thien Chuong Richard Ly, MD's MIPS final score?
The 2023 MIPS final score is 86.2 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.