Courtney Lynne Shay
Emergency Medicine Physician · San Francisco, CA
Courtney Lynne Shay is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1336639756, issued on May 10, 2018. Check the license (California A175200, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Courtney Lynne Shay
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A175200 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Avenue, San Francisco, CA 94110
- Phone
- (628) 206-5753
- Enumerated
- May 10, 2018
- Record last updated
- Apr 1, 2022
- Fax
- (628) 206-5818
- Medicare enrollment
- Enrolled (PECOS I20240306002722); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1001 Potrero Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deborah Anderson, CNMRegistered Nurse1801821053
- Patrick AvilaGastroenterology Physician1114365699
- Amin Azzam, MDPsychiatry Physician1811927395
- Jennifer Babik, MDInternal Medicine Physician1457421208
- Roland Bainton, MDAnesthesiology Physician1376596213
Verify Courtney Lynne Shay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A175200Check 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 emergency medicine physician in 2024
135 Medicare Part D claims for 100 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Cephalexin15 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
- Emergency Medicine Services OF FL LLCPort Charlotte, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Courtney Lynne Shay among 7,751 emergency medicine physician records in California
Courtney Lynne Shay is one of 7,751 emergency 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 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2018 · median 2011 among the 4,560 with a school on file
- Record last updated2022 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Francisco → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John Brown, MDSan Francisco, CA 941101053355941
- Ritik Chandra, MDSan Francisco, CA 941101700838737
- Rachel Chin, MDSan Francisco, CA 941101477597375
- Christopher Colwell, MDSan Francisco, CA 941101629092788
- Alan Gelb, MDSan Francisco, CA 941101497796213
- Eric Isaacs, MDSan Francisco, CA 941101356385231
- Todd Kessinger, MDSan Francisco, CA 941101255374732
- Judith Klein, MDSan Francisco, CA 941101235171638
Common questions
What is Courtney Lynne Shay's NPI number?
Courtney Lynne Shay's National Provider Identifier (NPI) is 1336639756, issued on May 10, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Courtney Lynne Shay located?
The NPPES record lists a practice address at 1001 Potrero Avenue, San Francisco, CA, 94110. Phone: (628) 206-5753. Providers update this record themselves, so call before visiting.
How can I verify Courtney Lynne Shay's license?
NPPES lists California license number A175200, 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 Lynne Shay prescribe under Medicare Part D?
In 2024, Courtney Lynne Shay had 135 Medicare Part D claims for 100 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.