Katherine C. Johnson, MD
Obstetrics & Gynecology Physician · Seattle, WA
Katherine C. Johnson, MD is an obstetrics & gynecology physician with a practice address in Seattle, Washington, and NPI 1295707289, issued on Feb 3, 2006. Check the license (Washington MD00033343, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Katherine C. Johnson
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD00033343 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 597-5242
- Enumerated
- Feb 3, 2006
- Record last updated
- Jul 17, 2025
- Medicaid ID
- 8234940 WA
- Medicare enrollment
- Enrolled (PECOS I20060110000966); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,038 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gifti Abbo, MDStudent in an Organized Health Care Education/Training Program1316688989
- Nandini AbburiNeurology Physician1730618349
- Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656
Verify Katherine C. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00033343Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
26 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $98.56
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine C. Johnson among 1,038 obstetrics & gynecology physician records in Washington
Katherine C. Johnson, MD is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 68% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1993 · median 2007 among the 582 with a school on file
- Record last updated2025 · 59% 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 Washington 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 Washington
There are 1,038 obstetrics & gynecology physician records in Washington.
All 1,038 in Washington → Every provider in Seattle → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Lisa Callegari, MDSeattle, WA 981951003980319
- Katherine Debiec, MDSeattle, WA 981951891801114
- Alison Desano, MDSeattle, WA 981951902912611
- Carolyn Gardella, MDSeattle, WA 981951346320744
- Kelley Hanrahan, MDSeattle, WA 981951275529307
- Amie Hollard, MDSeattle, WA 981951508814104
- Jessie Marrs, MDSeattle, WA 981951588773378
- Katherine McLean, MDSeattle, WA 981951265544241
Common questions
What is Katherine C. Johnson, MD's NPI number?
Katherine C. Johnson, MD's National Provider Identifier (NPI) is 1295707289, issued on Feb 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine C. Johnson, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 597-5242. Providers update this record themselves, so call before visiting.
How can I verify Katherine C. Johnson, MD's license?
NPPES lists Washington license number MD00033343, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine C. Johnson, MD prescribe under Medicare Part D?
In 2024, Katherine C. Johnson, MD had 26 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Katherine C. Johnson, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. 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.