Liam Flanagan, MD
Hospitalist Physician · La Jolla, CA
Liam Flanagan, MD is a hospitalist physician with a practice address in La Jolla, California, and NPI 1043902505, issued on May 23, 2023. Check the license (California A210681, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Liam Flanagan
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A210681 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10666 N Torrey Pines RD, La Jolla, CA 92037
- Phone
- (858) 554-7909
- Enumerated
- May 23, 2023
- Record last updated
- Jul 21, 2026
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 10666 N Torrey Pines RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Liam Flanagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A210681Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average hospitalist physician in 2024
463 Medicare Part D claims for 66 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium46 claims
- Furosemide22 claims
- Omeprazole20 claims
- Pantoprazole Sodium20 claims
- Carvedilol18 claims
- Valsartan18 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.
Liam Flanagan among 3,099 hospitalist physician records in California
Liam Flanagan, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 hospitalist physician records list a practice address in La Jolla
They are 66 of the 3,648 NPPES records with a practice address in La Jolla, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in La Jolla → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Duc Do, M.D.La Jolla, CA 920371811006851
- Jason Douglas, MDLa Jolla, CA 920371639152044
- Dan Dworsky, M.D.La Jolla, CA 920371114993631
- Liesbet Joris-Quinton, M.D.La Jolla, CA 920371770542987
- Neil Kalra, M.D.La Jolla, CA 920371699925784
- Mark Kyle, M.D.La Jolla, CA 920371154301646
- Diane McNally, MDLa Jolla, CA 920371982861357
- Laura Nicholson, M.D.La Jolla, CA 920371023060845
Common questions
What is Liam Flanagan, MD's NPI number?
Liam Flanagan, MD's National Provider Identifier (NPI) is 1043902505, issued on May 23, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Liam Flanagan, MD located?
The NPPES record lists a practice address at 10666 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (858) 554-7909. Providers update this record themselves, so call before visiting.
How can I verify Liam Flanagan, MD's license?
NPPES lists California license number A210681, 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 Liam Flanagan, MD prescribe under Medicare Part D?
In 2024, Liam Flanagan, MD had 463 Medicare Part D claims for 66 beneficiaries; the average among hospitalist physician prescribers was 521. 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.