Catherine P. Benziger, M.D.
Internal Medicine Physician · Seattle, WA
Catherine P. Benziger, M.D. is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1518266394, issued on Mar 20, 2011. Check the license (Washington MD60391079, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Catherine P. Benziger
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD60391079 WA
Self-reported in NPPES; status is on the state search - Practice location
- 206 3RD Ave S, Seattle, WA 98104
- Phone
- (206) 744-1599
- Enumerated
- Mar 20, 2011
- Record last updated
- Jul 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171025000024); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 206 3RD Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jacqueline Garces, PHARM.D.Pharmacotherapy Pharmacist1093816290
- Scott Johnson, CPHTPharmacy Technician1376874230
- Shaun Klein, RNRegistered Nurse1467323014
- Eve LakeInternal Medicine Physician1932542883
Verify Catherine P. Benziger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60391079Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,670 Medicare Part D claims for 424 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Atorvastatin Calcium255 claims
- Metoprolol Succinate230 claims
- Ezetimibe175 claims
- Jardiance157 claims
- Eliquis143 claims
- Rosuvastatin Calcium143 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.
Industry payments in 2024: $3,199.21
5 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- St Marys Hospital OF SuperiorHayward, WI
- St Marys Medical CenterDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine P. Benziger among 3,079 internal medicine physician records in Washington
Catherine P. Benziger, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 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 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · median 2006 among the 1,852 with a school on file
- Record last updated2013 · 63% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Abdallah, MDSeattle, WA 981041639166119
- James Bushyhead, MDSeattle, WA 981041366439846
- Michael Cairns, MDSeattle, WA 981041184611659
- Linda Chow, MDSeattle, WA 981041962498014
- Alex Efird, MDSeattle, WA 981041669469144
- Seth Franklin, MDSeattle, WA 981041588650253
- Margo Kober, MDSeattle, WA 981041083601561
- Eva KojnokSeattle, WA 981041720075294
Common questions
What is Catherine P. Benziger, M.D.'s NPI number?
Catherine P. Benziger, M.D.'s National Provider Identifier (NPI) is 1518266394, issued on Mar 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Catherine P. Benziger, M.D. located?
The NPPES record lists a practice address at 206 3RD Ave S, Seattle, WA, 98104. Phone: (206) 744-1599. Providers update this record themselves, so call before visiting.
How can I verify Catherine P. Benziger, M.D.'s license?
NPPES lists Washington license number MD60391079, 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 Catherine P. Benziger, M.D. prescribe under Medicare Part D?
In 2024, Catherine P. Benziger, M.D. had 2,670 Medicare Part D claims for 424 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.