NPPES file of Aug 9, 2026

Courtney Stewart, MD

Family Medicine Physician · Eureka, CA

Courtney Stewart, MD is a family medicine physician with a practice address in Eureka, California, and NPI 1326400557, issued on Mar 26, 2016. Check the license (California A151596, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326400557
Name
Courtney Stewart
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A151596 CA
Self-reported in NPPES; status is on the state search
Practice location
2350 Buhne St Ste A, Eureka, CA 95501
Phone
(707) 443-4593
Enumerated
Mar 26, 2016
Record last updated
Mar 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(707) 269-7116
Medicare enrollment
Enrolled (PECOS I20230310000845); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2016
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2350 Buhne St Ste A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mikal Achtner, MDStudent in an Organized Health Care Education/Training Program1407412356
  2. Rachael Adair, CNM, PMHNPAdvanced Practice Midwife1104229483
  3. Jessica Boisvert Meyer, LMFTMarriage & Family Therapist1770820193
  4. Holly BuhlerRegistered Nurse1699294793
  5. Patricia Chico, M.D.Family Medicine Physician1801162565
  6. Amy Denton, RNRegistered Nurse1093484354

Verify Courtney Stewart in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A151596
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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46% fewer Medicare Part D claims than the average family medicine physician in 2024

1,918 Medicare Part D claims for 251 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Courtney Stewart1,918
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium213 claims
  2. Losartan Potassium150 claims
  3. Amlodipine Besylate96 claims
  4. Levothyroxine Sodium85 claims
  5. Metformin Hcl71 claims
  6. Lisinopril70 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.

One hospital affiliation

  1. Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Courtney Stewart among 17,133 family medicine physician records in California

Courtney Stewart, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.

  • NPI issued2016 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2016 · median 2005 among the 10,652 with a school on file
  • Record last updated2020 · 58% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 family medicine physician records list a practice address in Eureka

They are 48 of the 2,854 NPPES records with a practice address in Eureka, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Laurence Badgley, M.D.Eureka, CA 955011477647287
  2. Allison Burton, MDEureka, CA 955011255320438
  3. Corinne Frugoni, MDEureka, CA 955011639177892
  4. Hal Grotke, MDEureka, CA 955011790841278
  5. May Hong, M.D.Eureka, CA 955011811933690
  6. Willard Hunter, M.D.Eureka, CA 955011477589323
  7. Steven Kamelgarn, MDEureka, CA 955011811907975
  8. Eva Marshall, M.D.Eureka, CA 955011326009820

Common questions

What is Courtney Stewart, MD's NPI number?

Courtney Stewart, MD's National Provider Identifier (NPI) is 1326400557, issued on Mar 26, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Courtney Stewart, MD located?

The NPPES record lists a practice address at 2350 Buhne St Ste A, Eureka, CA, 95501. Phone: (707) 443-4593. Providers update this record themselves, so call before visiting.

How can I verify Courtney Stewart, MD's license?

NPPES lists California license number A151596, 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 Courtney Stewart, MD prescribe under Medicare Part D?

In 2024, Courtney Stewart, MD had 1,918 Medicare Part D claims for 251 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.