Christopher Lucas Walsh, M.D.
Internal Medicine Physician · La Jolla, CA
Christopher Lucas Walsh, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1053773200, issued on Mar 27, 2016. Check the license (California A161714, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Lucas Walsh
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A161714 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9888 Genesee Ave, La Jolla, CA 92037
- Phone
- (410) 428-7710
- Enumerated
- Mar 27, 2016
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210430001036); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9888 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher Lucas Walsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
400 Medicare Part D claims for 136 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Xarelto29 claims
- Pantoprazole Sodium18 claims
- Donepezil Hcl17 claims
- Hydrocodone-Acetaminophen15 claims
- Cefuroxime12 claims
- Oxycodone Hcl11 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 2 group practices
- Scripps HealthLa Jolla, CA
- Scripps Health Inpatient Providers Medical Group IncLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Lucas Walsh among 17,696 internal medicine physician records in California
Christopher Lucas Walsh, 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 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2016 · median 2004 among the 11,065 with a school on file
- 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
- Joseph Andrews, M.D.La Jolla, CA 920371588639876
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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 Christopher Lucas Walsh, M.D.'s NPI number?
Christopher Lucas Walsh, M.D.'s National Provider Identifier (NPI) is 1053773200, issued on Mar 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Lucas Walsh, M.D. located?
The NPPES record lists a practice address at 9888 Genesee Ave, La Jolla, CA, 92037. Phone: (410) 428-7710. Providers update this record themselves, so call before visiting.
How can I verify Christopher Lucas Walsh, M.D.'s license?
NPPES lists California license number A161714, 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 Christopher Lucas Walsh, M.D. prescribe under Medicare Part D?
In 2024, Christopher Lucas Walsh, M.D. had 400 Medicare Part D claims for 136 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.