Jennifer Keiser
Internal Medicine Physician · Tigard, OR
Jennifer Keiser is an internal medicine physician with a practice address in Tigard, Oregon, and NPI 1144684465, issued on Apr 12, 2016. Check the license on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jennifer Keiser
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD-46374 IA
Self-reported in NPPES; status is on the state search - Practice location
- 12123 SW 69TH Ave, Tigard, OR 97223
- Phone
- (971) 708-7600
- Enumerated
- Apr 12, 2016
- Record last updated
- Jul 17, 2023
- Fax
- (971) 371-5230
- Medicare enrollment
- Enrolled (PECOS I20220907000192); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 12123 SW 69TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marisa Adlesich, PA-CPhysician Assistant1679047708
- Rebecca Amador, MSN, AGPCNP-BCNurse Practitioner1235413840
- William Arscott, MDRadiation Oncology Physician1831509926
- Ariel Black, LCSW, LICSWClinical Social Worker1841144532
- Edward Chang, M.D.Hematology & Oncology Physician1376546309
- Michele Dickson, ARNPFamily Nurse Practitioner1619957990
Verify Jennifer Keiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
622 Medicare Part D claims for 105 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Dexamethasone35 claims
- Eliquis29 claims
- Lenalidomide27 claims
- Hydroxyurea26 claims
- Prochlorperazine Maleate26 claims
- Levothyroxine Sodium24 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 one group practice
- Northwest Cancer Specialists PCTigard, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Keiser among 2,116 internal medicine physician records in Oregon
Jennifer Keiser is one of 2,116 internal medicine 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 2016, is newer than 78% of them.
- NPI issued2016 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2008 among the 1,232 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 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Oregon
There are 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Tigard → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Evagelia Baros, DOTigard, OR 972231003019340
- Milton Blettel, MDTigard, OR 972231336208388
- Brian Burke, MDTigard, OR 972231790822625
- Samuel Fellin, DOTigard, OR 972231265463996
- Heidi Hagman, M.D.Tigard, OR 972231962489575
- Aileen Kim, MDTigard, OR 972231255360657
- Lawrence LangsdorfTigard, OR 972231639101439
- Daniel Mangum, DOTigard, OR 972231710055322
Common questions
What is Jennifer Keiser's NPI number?
Jennifer Keiser's National Provider Identifier (NPI) is 1144684465, issued on Apr 12, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Keiser located?
The NPPES record lists a practice address at 12123 SW 69TH Ave, Tigard, OR, 97223. Phone: (971) 708-7600. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Keiser's license?
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 Jennifer Keiser prescribe under Medicare Part D?
In 2024, Jennifer Keiser had 622 Medicare Part D claims for 105 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.