Timothy O'Neill, M.D.
Internal Medicine Physician · San Diego, CA
Timothy O'Neill, M.D. is an internal medicine physician with a practice address in San Diego, California, and NPI 1831172295, issued on Nov 21, 2005. Check the license (California A67900, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Timothy O'Neill
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A67900 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2850 6TH Ave, San Diego, CA 92103
- Phone
- (619) 260-0670
- Enumerated
- Nov 21, 2005
- Entity
- Type 1 · individual
Also registered at 2850 6TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
162 Medicare Part D claims for 62 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
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: $106.81
4 payments, mostly food and beverage; the largest payer was Lilly USA, LLC. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- Scripps Health Inpatient Providers Medical Group IncSan Diego, 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.
1,049 internal medicine physician records list a San Diego practice address
They are 1,049 of the 52,937 NPPES records with a San Diego practice address, and 20,403 internal medicine physician records in California.
All 1,049 in San Diego → All 20,403 in California → Every provider in San Diego →
Other internal medicine physician records in California
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- 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 Timothy O'Neill, M.D.'s NPI number?
Timothy O'Neill, M.D.'s National Provider Identifier (NPI) is 1831172295, issued on Nov 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy O'Neill, M.D. located?
The NPPES record lists a practice address at 2850 6TH Ave, San Diego, CA, 92103. Phone: (619) 260-0670. Providers update this record themselves, so call before visiting.
How can I verify Timothy O'Neill, M.D.'s license?
NPPES lists California license number A67900, 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 Timothy O'Neill, M.D. prescribe under Medicare Part D?
In 2024, Timothy O'Neill, M.D. had 162 Medicare Part D claims for 62 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.