Andrew A. Williams, DO
Psychiatry Physician · Beaverton, OR
Andrew A. Williams, DO is a psychiatry physician with a practice address in Beaverton, Oregon, and NPI 1346627551, issued on Apr 27, 2015. Check the license (Oregon DO191028, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Andrew A. Williams
- Credential
- DO
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- DO191028 OR
007117 AZ
12573352-1204 UT
DO.OP.61107091-IMLC WA
Self-reported in NPPES; status is on the state search - Practice location
- 16100 NW Cornell RD Ste 220, Beaverton, OR 97006
- Phone
- (503) 878-8885
- Enumerated
- Apr 27, 2015
- Record last updated
- Feb 17, 2026
- Fax
- (971) 297-1360
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 764 in Oregon → Look up another NPI →
Also registered at 16100 NW Cornell RD Ste 220
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalia Addo, PA-CPhysician Assistant1568271245
- Jennifer Barnes, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1073209144
- Kendra Pittman, LCSWClinical Social Worker1497331631
Verify Andrew A. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO191028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average psychiatry physician in 2024
374 Medicare Part D claims for 26 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Spravato46 claims
- Dextroamphetamine-Amphetamine27 claims
- Clonazepam26 claims
- Bupropion Xl23 claims
- Duloxetine Hcl20 claims
- Lamotrigine19 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).
Industry payments in 2024: $6,568.13
13 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Scientific Affairs, LLC. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Andrew A. Williams among 764 psychiatry physician records in Oregon
Andrew A. Williams, DO 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 2015, is newer than 79% of them.
- NPI issued2015 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2026 · 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 Beaverton → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Scott Christensen, M.D.Beaverton, OR 970061871025197
- Ann Howard, MDBeaverton, OR 970061184647174
- Marcia Kahn, MDBeaverton, OR 970061356364855
- Saja Necibi, MDBeaverton, OR 970061023698339
- Anthony Nguyen, MDHillsboro, OR 970061346696317
- Pia Quimson-Guevarra, DOBeaverton, OR 970061659614998
- Howard Rosenbaum, MDBeaverton, OR 970061801817507
- Anushka Shenoy, MDBeaverton, OR 970061689008682
Common questions
What is Andrew A. Williams, DO's NPI number?
Andrew A. Williams, DO's National Provider Identifier (NPI) is 1346627551, issued on Apr 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Andrew A. Williams, DO located?
The NPPES record lists a practice address at 16100 NW Cornell RD Ste 220, Beaverton, OR, 97006. Phone: (503) 878-8885. Providers update this record themselves, so call before visiting.
How can I verify Andrew A. Williams, DO's license?
NPPES lists Oregon license number DO191028, 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 Andrew A. Williams, DO prescribe under Medicare Part D?
In 2024, Andrew A. Williams, DO had 374 Medicare Part D claims for 26 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Andrew A. Williams, DO'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.