Catherine E. Buell, DO
Internal Medicine Physician · Santa Barbara, CA
Catherine E. Buell, DO is an internal medicine physician with a practice address in Santa Barbara, California, and NPI 1699416230, issued on Apr 6, 2022. Check the license (California 20A24307, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Catherine E. Buell
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A24307 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Pueblo St, Santa Barbara, CA 93105
- Phone
- (805) 682-7111
- Enumerated
- Apr 6, 2022
- Record last updated
- Jun 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20250827004422); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 400 W Pueblo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine E. Buell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A24307Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
186 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 claims
- Lisinopril12 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
- Cottage Medical FoundationSanta Barbara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine E. Buell among 17,696 internal medicine physician records in California
Catherine E. Buell, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
129 internal medicine physician records list a practice address in Santa Barbara
They are 129 of the 5,328 NPPES records with a practice address in Santa Barbara, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Barbara → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- David Dodson, M.DSanta Barbara, CA 931051619943834
- Patrick Frawley, MDSanta Barbara, CA 931051093707358
- Jeffrey Hadsall, M.D.Santa Barbara, CA 931051275641714
- William Koonce, MDSanta Barbara, CA 931051124010095
- Sandra Kramer, MDSanta Barbara, CA 931051104823418
Common questions
What is Catherine E. Buell, DO's NPI number?
Catherine E. Buell, DO's National Provider Identifier (NPI) is 1699416230, issued on Apr 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Catherine E. Buell, DO located?
The NPPES record lists a practice address at 400 W Pueblo St, Santa Barbara, CA, 93105. Phone: (805) 682-7111. Providers update this record themselves, so call before visiting.
How can I verify Catherine E. Buell, DO's license?
NPPES lists California license number 20A24307, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Catherine E. Buell, DO prescribe under Medicare Part D?
In 2024, Catherine E. Buell, DO had 186 Medicare Part D claims for 54 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.