NPPES file of Aug 9, 2026

John A. Yates, MD

Family Medicine Physician · Portland, OR

John A. Yates, MD is a family medicine physician with a practice address in Portland, Oregon, and NPI 1295224392, issued on May 3, 2018. Check the license (Oregon MD208468, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295224392
Name
John A. Yates
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD208468 OR
Self-reported in NPPES; status is on the state search
Practice location
4920 N Interstate Ave, Portland, OR 97217
Phone
(503) 215-3300
Enumerated
May 3, 2018
Record last updated
Jan 4, 2022
Medicare enrollment
Enrolled (PECOS I20220105002556); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2018
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 4920 N Interstate Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Arbuckle, PA-CPhysician Assistant1417431545
  2. Amelia Baker, MD, PHDFamily Medicine Physician1144649179
  3. Melissa Boucher, DOFamily Medicine Physician1386222495
  4. Matthew Breeze, MDFamily Medicine Physician1083655609
  5. Vanessa Casillas, PSY.D.Clinical Psychologist1235432287
  6. Zhong Chen, MDFamily Medicine Physician1518609767

Verify John A. Yates in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD208468
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2% more Medicare Part D claims than the average family medicine physician in 2024

3,614 Medicare Part D claims for 249 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 149 claims were for opioids.

  1. John Yates3,614
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium319 claims
  2. Amlodipine Besylate150 claims
  3. Lisinopril101 claims
  4. Levothyroxine Sodium99 claims
  5. Hydrocodone-Acetaminophen96 claims
  6. Losartan Potassium92 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 2 group practices

  1. Providence Health And Services - OregonPortland, OR
  2. 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).

John A. Yates among 2,847 family medicine physician records in Oregon

John A. Yates, MD is one of 2,847 family medicine physician records with a practice address in Oregon. 75% 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 84% of them.

  • NPI issued2018 · 84% of these records are older, 14% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2018 · median 2009 among the 1,671 with a school on file
  • Record last updated2022 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

561 family medicine physician records list a practice address in Portland

They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon.

The 8 family medicine physician records with the nearest ZIP codes

  1. Matthew Breeze, MDPortland, OR 972171083655609
  2. Simon Chan, DOPortland, OR 972171841242195
  3. Diego Diaz, MDPortland, OR 972171407019532
  4. Shauna Ensminger, MDPortland, OR 972171619960002
  5. Gregory Freed, M.D.Portland, OR 972171346433042
  6. Monique Gedenk, MDPortland, OR 972171740226745
  7. Janel Guyette, M.D.Portland, OR 972171205990660
  8. Mary Frances Lowdermilk, M.D.Portland, OR 972171245453315

Common questions

What is John A. Yates, MD's NPI number?

John A. Yates, MD's National Provider Identifier (NPI) is 1295224392, issued on May 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is John A. Yates, MD located?

The NPPES record lists a practice address at 4920 N Interstate Ave, Portland, OR, 97217. Phone: (503) 215-3300. Providers update this record themselves, so call before visiting.

How can I verify John A. Yates, MD's license?

NPPES lists Oregon license number MD208468, 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 John A. Yates, MD prescribe under Medicare Part D?

In 2024, John A. Yates, MD had 3,614 Medicare Part D claims for 249 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.