Kathy Kiryang Bak, M.D.
Family Medicine Physician · Portland, OR
Kathy Kiryang Bak, M.D. is a family medicine physician with a practice address in Portland, Oregon, and NPI 1861412884, issued on Jul 20, 2006. Check the license (Oregon MD164294, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathy Kiryang Bak
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD164294 OR
A91888 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12400 NW Cornell RD Ste 100, Portland, OR 97229
- Phone
- (503) 291-4000
- Enumerated
- Jul 20, 2006
- Record last updated
- Oct 27, 2023
- Medicaid ID
- 500674133 OR
- Medicare enrollment
- Enrolled (PECOS I20131114000034); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 12400 NW Cornell RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Beswick, PSYDClinical Psychologist1356550362
- Raquel Bishop, FNPFamily Nurse Practitioner1477102689
- Jessica Harper, PA-CPhysician Assistant1306507751
- Vivian Tsang, FNPFamily Nurse Practitioner1649992173
- Patrick Williams, MDFamily Medicine Physician1912014317
- Anne Willis, PSYDClinical Psychologist1275882854
Verify Kathy Kiryang Bak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD164294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average family medicine physician in 2024
2,442 Medicare Part D claims for 348 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium204 claims
- Amlodipine Besylate128 claims
- Lisinopril125 claims
- Levothyroxine Sodium94 claims
- Simvastatin73 claims
- Fluoxetine Hcl72 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 2 group practices
- Providence Health And Services - OregonPortland, OR
- 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).
Kathy Kiryang Bak among 2,847 family medicine physician records in Oregon
Kathy Kiryang Bak, M.D. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2002 · median 2009 among the 1,671 with a school on file
- Record last updated2023 · 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.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Roxana Abbott, DOPortland, OR 972291275799082
- Harold Barry, MDPortland, OR 972291841236924
- Kristi Coleman, M.D.Portland, OR 972291659515336
- Heena Doshi, MDPortland, OR 972291508809781
- Gary Geddes, MDPortland, OR 972291437190741
- Lori Gluck, MDPortland, OR 972291225000334
- Dong Ji, M.D.Portland, OR 972291033273784
- Christopher Kim, M.D.Portland, OR 972291720498512
Common questions
What is Kathy Kiryang Bak, M.D.'s NPI number?
Kathy Kiryang Bak, M.D.'s National Provider Identifier (NPI) is 1861412884, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Kiryang Bak, M.D. located?
The NPPES record lists a practice address at 12400 NW Cornell RD Ste 100, Portland, OR, 97229. Phone: (503) 291-4000. Providers update this record themselves, so call before visiting.
How can I verify Kathy Kiryang Bak, M.D.'s license?
NPPES lists Oregon license number MD164294, 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 Kathy Kiryang Bak, M.D. prescribe under Medicare Part D?
In 2024, Kathy Kiryang Bak, M.D. had 2,442 Medicare Part D claims for 348 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Kathy Kiryang Bak, M.D.'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.