Thomas Laighton Carter, M.D.
Internal Medicine Physician · La Jolla, CA
Thomas Laighton Carter, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1912952052, issued on May 24, 2006. Check the license (California A91241, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas Laighton Carter
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A91241 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10710 N Torrey Pines RD, La Jolla, CA 92037
- Phone
- (858) 554-7225
- Enumerated
- May 24, 2006
- Record last updated
- Aug 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A912410 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 10710 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 Thomas Laighton Carter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91241Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,683 Medicare Part D claims for 406 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium292 claims
- Levothyroxine Sodium160 claims
- Rosuvastatin Calcium155 claims
- Amlodipine Besylate122 claims
- Losartan Potassium106 claims
- Lisinopril90 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.
Thomas Laighton Carter among 17,696 internal medicine physician records in California
Thomas Laighton Carter, M.D. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 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).
158 internal medicine physician records list a practice address in La Jolla
They are 158 of the 3,648 NPPES records with a practice address in La Jolla, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Jolla → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Pamila Brar, M.D.La Jolla, CA 920371013982602
- Annamaria Calabro, M.D.La Jolla, CA 920371508843244
- Bruce Covner, M.D.La Jolla, CA 920371720072192
- Neil Farber, MDLa Jolla, CA 920371043295363
- Shipra Khushu, M.D.La Jolla, CA 920371235118936
Common questions
What is Thomas Laighton Carter, M.D.'s NPI number?
Thomas Laighton Carter, M.D.'s National Provider Identifier (NPI) is 1912952052, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Laighton Carter, M.D. located?
The NPPES record lists a practice address at 10710 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (858) 554-7225. Providers update this record themselves, so call before visiting.
How can I verify Thomas Laighton Carter, M.D.'s license?
NPPES lists California license number A91241, 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 Thomas Laighton Carter, M.D. prescribe under Medicare Part D?
In 2024, Thomas Laighton Carter, M.D. had 2,683 Medicare Part D claims for 406 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.