Mark Adrian, M.D.
Internal Medicine Physician · La Jolla, CA
Mark Adrian, M.D. is an internal medicine physician with a practice address in La Jolla, California, and NPI 1003879438, issued on Apr 7, 2006. Check the license (California G78895, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Adrian
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G78895 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9850 Genesee Ave, La Jolla, CA 92037
- Phone
- (858) 202-0011
- Enumerated
- Apr 7, 2006
- Entity
- Type 1 · individual
Also registered at 9850 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Adrian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G78895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
45% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,538 Medicare Part D claims for 128 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 148 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen70 claims
- Atorvastatin Calcium68 claims
- Amlodipine Besylate66 claims
- Levothyroxine Sodium52 claims
- Losartan Potassium47 claims
- Alprazolam33 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.
2 hospital and facility affiliations
- Scripps Health Inpatient Providers Medical Group IncSan Diego, CA
- Ximed Hospitalists, Inc.La Jolla, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
220 internal medicine physician records list a La Jolla practice address
They are 220 of the 3,648 NPPES records with a La Jolla practice address, and 20,403 internal medicine physician records in California.
All 220 in La Jolla → All 20,403 in California → Every provider in La Jolla →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Mark Adrian, M.D.'s NPI number?
Mark Adrian, M.D.'s National Provider Identifier (NPI) is 1003879438, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Adrian, M.D. located?
The NPPES record lists a practice address at 9850 Genesee Ave, La Jolla, CA, 92037. Phone: (858) 202-0011. Providers update this record themselves, so call before visiting.
How can I verify Mark Adrian, M.D.'s license?
NPPES lists California license number G78895, 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 Mark Adrian, M.D. prescribe under Medicare Part D?
In 2024, Mark Adrian, M.D. had 1,538 Medicare Part D claims for 128 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.