Nicholas R. Williams, DO, MPH
Psychiatry Physician · Portland, OR
Nicholas R. Williams, DO, MPH is a psychiatry physician with a practice address in Portland, Oregon, and NPI 1699255869, issued on Aug 17, 2018. Check the license (Oregon DO216050, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nicholas R. Williams
- Credential
- DO, MPH
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- DO216050 OR
2309 NE
Self-reported in NPPES; status is on the state search - Practice location
- 9155 SW Barnes RD Ste 333, Portland, OR 97225
- Phone
- (503) 216-5102
- Enumerated
- Aug 17, 2018
- Record last updated
- Dec 8, 2023
- Fax
- (971) 282-0091
- Medicare enrollment
- Enrolled (PECOS I20230907001696); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 764 in Oregon → Look up another NPI →
Also registered at 9155 SW Barnes RD Ste 333
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katrin Beene, PSYDClinical Neuropsychologist1518476282
- Rhiannon Boatman, PMHNPPsychiatric/Mental Health Nurse Practitioner1649143470
- Jennifer Brinkman, LCSWClinical Social Worker1053968578
- Beau Curtiss, LCSWClinical Social Worker1881203628
- Tyler Duffield, PHDClinical Psychologist1962842203
- Mark Fettman, MDPsychiatry Physician1043201981
Verify Nicholas R. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO216050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average psychiatry physician in 2024
136 Medicare Part D claims for 30 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluoxetine Hcl13 claims
- Lamotrigine11 claims
- Prazosin Hcl11 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): 87.8 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
- Providence Health And Services OregonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas R. Williams among 764 psychiatry physician records in Oregon
Nicholas R. Williams, DO, MPH 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 2018, is newer than 86% of them.
- NPI issued2018 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2018 · median 2009 among the 300 with a school on file
- 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 Portland → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- John Anderson, MDPortland, OR 972251558350611
- Catherine Barlow, MDPortland, OR 972251467547844
- Jennifer Bowman, MDPortland, OR 972251962431379
- Paul Conti, MDPortland, OR 972251700860152
- Mark Fettman, MDPortland, OR 972251043201981
- Henry Grass, MDPortland, OR 972251255339404
- Jagdish Ragade, MDPortland, OR 972251477542108
- Martin Raitiere, M.D.Portland, OR 972251063523561
Common questions
What is Nicholas R. Williams, DO, MPH's NPI number?
Nicholas R. Williams, DO, MPH's National Provider Identifier (NPI) is 1699255869, issued on Aug 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas R. Williams, DO, MPH located?
The NPPES record lists a practice address at 9155 SW Barnes RD Ste 333, Portland, OR, 97225. Phone: (503) 216-5102. Providers update this record themselves, so call before visiting.
How can I verify Nicholas R. Williams, DO, MPH's license?
NPPES lists Oregon license number DO216050, 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 Nicholas R. Williams, DO, MPH prescribe under Medicare Part D?
In 2024, Nicholas R. Williams, DO, MPH had 136 Medicare Part D claims for 30 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Nicholas R. Williams, DO, MPH's MIPS final score?
The 2023 MIPS final score is 87.8 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.