Larry J. Marshall, MD
Family Medicine Physician · Lakeside, CA
Larry J. Marshall, MD is a family medicine physician with a practice address in Lakeside, California, and NPI 1114018132, issued on Sep 27, 2006. Check the license (California A52344, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Larry J. Marshall
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A52344 CA
16913 NV
Self-reported in NPPES; status is on the state search - Practice location
- 12517 Lakeshore Dr, Lakeside, CA 92040
- Phone
- (619) 443-3843
- Enumerated
- Sep 27, 2006
- Record last updated
- Dec 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (619) 390-1810
- Medicaid ID
- 00A523440 CA
- Medicare enrollment
- Enrolled (PECOS I20110504000301); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 12517 Lakeshore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacob Bolz, PA-CPhysician Assistant1386025682
- Victor Mendoza-FernandezFamily Medicine Physician1134220239
Verify Larry J. Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average family medicine physician in 2024
7,640 Medicare Part D claims for 463 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 333 claims were for opioids.
Most prescribed
- Atorvastatin Calcium467 claims
- Hydrochlorothiazide320 claims
- Levothyroxine Sodium289 claims
- Lisinopril265 claims
- Amlodipine Besylate251 claims
- Metformin Hcl239 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.
Industry payments in 2024: $302.12
15 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Larry J. Marshall among 17,133 family medicine physician records in California
Larry J. Marshall, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · 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).
7 family medicine physician records list a practice address in Lakeside
They are 7 of the 135 NPPES records with a practice address in Lakeside, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Lakeside → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joshua GunpatLakeside, CA 920401114458775
- Robert Johnson, M.D.Lakeside, CA 920401730523515
- Elizabeth Mannino, M.DLakeside, CA 920401548290463
- Victor Mendoza-FernandezLakeside, CA 920401134220239
- Christine Pham, DOLakeside, CA 920401356873897
- Kulin Tantod, MDLakeside, CA 920401902058928
- Heba Ahmed, DOLa Jolla, CA 920371568969327
- Lynn Altes, DOLa Jolla, CA 920371124964846
Common questions
What is Larry J. Marshall, MD's NPI number?
Larry J. Marshall, MD's National Provider Identifier (NPI) is 1114018132, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Larry J. Marshall, MD located?
The NPPES record lists a practice address at 12517 Lakeshore Dr, Lakeside, CA, 92040. Phone: (619) 443-3843. Providers update this record themselves, so call before visiting.
How can I verify Larry J. Marshall, MD's license?
NPPES lists California license number A52344, 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 Larry J. Marshall, MD prescribe under Medicare Part D?
In 2024, Larry J. Marshall, MD had 7,640 Medicare Part D claims for 463 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.