Kathryn Brewer, MD
Internal Medicine Physician · Solvang, CA
Kathryn Brewer, MD is an internal medicine physician with a practice address in Solvang, California, and NPI 1528042470, issued on Dec 5, 2005. Check the license (California A125955, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathryn Brewer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A125955 CA
18020 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1992 Old Mission Dr Ste 140, Solvang, CA 93463
- Phone
- (805) 614-5690
- Enumerated
- Dec 5, 2005
- Entity
- Type 1 · individual
Also registered at 1992 Old Mission Dr Ste 140
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Bergstrom, MDEmergency Medicine Physician1679568711
- Courtney Paxson, PA-CPhysician Assistant1518486133
Verify Kathryn Brewer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A125955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
40% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,665 Medicare Part D claims for 210 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium149 claims
- Atorvastatin Calcium109 claims
- Lisinopril92 claims
- Losartan Potassium75 claims
- Ozempic60 claims
- Amlodipine Besylate52 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 Medicare quality score for 2023: 96.5 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: $40.34
1 payment, mostly food and beverage; the largest payer was Abbott Laboratories. The 65,274 providers of this specialty with any payment received $2,536.66 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.
2 hospital and facility affiliations
- Cottage Clinical AssociatesSolvang, CA
- Cottage Medical FoundationGoleta, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
9 internal medicine physician records list a Solvang practice address
They are 9 of the 155 NPPES records with a Solvang practice address, and 20,403 internal medicine physician records in California.
All 9 in Solvang → All 20,403 in California → Every provider in Solvang →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Kathryn Brewer, MD's NPI number?
Kathryn Brewer, MD's National Provider Identifier (NPI) is 1528042470, issued on Dec 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Brewer, MD located?
The NPPES record lists a practice address at 1992 Old Mission Dr Ste 140, Solvang, CA, 93463. Phone: (805) 614-5690. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Brewer, MD's license?
NPPES lists California license number A125955, 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 Kathryn Brewer, MD prescribe under Medicare Part D?
In 2024, Kathryn Brewer, MD had 1,665 Medicare Part D claims for 210 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Kathryn Brewer, MD's Medicare quality score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.