Katherine Lyn Weyer, MD
Obstetrics & Gynecology Physician · Oregon City, OR
Katherine Lyn Weyer, MD is an obstetrics & gynecology physician with a practice address in Oregon City, Oregon, and NPI 1720421423, issued on Apr 11, 2013. Check the license (Oregon MD184314, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katherine Lyn Weyer
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- MD184314 OR
138190 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1508 Division St Ste 205, Oregon City, OR 97045
- Phone
- (503) 657-1057
- Enumerated
- Apr 11, 2013
- Record last updated
- Jan 30, 2026
- Fax
- (503) 657-3321
- Medicaid ID
- 500727597 OR
- Medicare enrollment
- Enrolled (PECOS I20240322003159); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 654 in Oregon → Look up another NPI →
Also registered at 1508 Division St Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Holly Boehm, CNMAdvanced Practice Midwife1366751208
- Joline Bronson, MDObstetrics & Gynecology Physician1598927782
- Misra Cohen-Macgill, CNMAdvanced Practice Midwife1629551577
- Haley Craig, MDObstetrics & Gynecology Physician1487283271
- Britney Frank, CNM, WHNPAdvanced Practice Midwife1710590377
- Wendy Hall, MDObstetrics & Gynecology Physician1689632762
Verify Katherine Lyn Weyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD184314Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
58 Medicare Part D claims for 35 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol19 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.
One hospital affiliation
- Frances Mahon Deaconess HospitalGlasgow, MT · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Katherine Lyn Weyer among 654 obstetrics & gynecology physician records in Oregon
Katherine Lyn Weyer, MD is one of 654 obstetrics & gynecology physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2007 among the 413 with a school on file
- Record last updated2026 · 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 207V00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Oregon
There are 654 obstetrics & gynecology physician records in Oregon.
All 654 in Oregon → Every provider in Oregon City → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Joline Bronson, MDOregon City, OR 970451598927782
- Arthur Cooper, M.D.Oregon City, OR 970451770541831
- Haley Craig, MDOregon City, OR 970451487283271
- Wendy Hall, MDOregon City, OR 970451689632762
- Ari Heffron, MDOregon City, OR 970451558526681
- Harold Johnson, MEDICAL DOCTOROregon City, OR 970451205965951
- Stephanie Lee, DOOregon City, OR 970451710151659
- Michael Nielsen, M.D.Oregon City, OR 970451467410548
Common questions
What is Katherine Lyn Weyer, MD's NPI number?
Katherine Lyn Weyer, MD's National Provider Identifier (NPI) is 1720421423, issued on Apr 11, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Lyn Weyer, MD located?
The NPPES record lists a practice address at 1508 Division St Ste 205, Oregon City, OR, 97045. Phone: (503) 657-1057. Providers update this record themselves, so call before visiting.
How can I verify Katherine Lyn Weyer, MD's license?
NPPES lists Oregon license number MD184314, 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 Katherine Lyn Weyer, MD prescribe under Medicare Part D?
In 2024, Katherine Lyn Weyer, MD had 58 Medicare Part D claims for 35 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.