Tia J. Dorn, M.D.
Family Medicine Physician · San Diego, CA
Tia J. Dorn, M.D. is a family medicine physician with a practice address in San Diego, California, and NPI 1285074740, issued on Jun 28, 2013. Check the license (California 172318, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tia J. Dorn
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 172318 CA
125064108 IL
01081650A IN
Self-reported in NPPES; status is on the state search - Practice location
- 823 Gateway Center Way, San Diego, CA 92102
- Phone
- (619) 515-2300
- Enumerated
- Jun 28, 2013
- Record last updated
- Aug 16, 2023
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 823 Gateway Center Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Majella Abris Limas, OTOccupational Therapist1881864064
- Ralph Ascher, MDFamily Medicine Physician1275543258
- Remedios Babanto, FNPFamily Nurse Practitioner1669520011
- Joan Bailey, MDInternal Medicine Physician1386697779
- Leticia BaneMarriage & Family Therapist1366911901
- Sasha Bangs, PA-CPhysician Assistant1720524374
Verify Tia J. Dorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 172318Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family medicine physician in 2024
656 Medicare Part D claims for 124 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin72 claims
- Amlodipine Besylate62 claims
- Atorvastatin Calcium57 claims
- Lisinopril30 claims
- Albuterol Sulfate Hfa20 claims
- Metformin Hcl20 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.
Tia J. Dorn among 17,133 family medicine physician records in California
Tia J. Dorn, M.D. 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 2013, is newer than 68% of them.
- NPI issued2013 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2023 · 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).
780 family medicine physician records list a practice address in San Diego
They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Diego → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ali Abdallah, DOSan Diego, CA 921021649699968
- Ralph Ascher, MDSan Diego, CA 921021275543258
- Manijeh Ghasemi-Varnamkhasti, MDSan Diego, CA 921021740449727
- Lisa Hamilton, D.O.San Diego, CA 921021235576059
- Bahghi Keflezighi, MDSan Diego, CA 921021124210844
- Veronica Palomino, MDSan Diego, CA 921021255569083
- Cristhian Ramirez, D.O.San Diego, CA 921021407200942
- Barbara Saul, DOSan Diego, CA 921021891869301
Common questions
What is Tia J. Dorn, M.D.'s NPI number?
Tia J. Dorn, M.D.'s National Provider Identifier (NPI) is 1285074740, issued on Jun 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tia J. Dorn, M.D. located?
The NPPES record lists a practice address at 823 Gateway Center Way, San Diego, CA, 92102. Phone: (619) 515-2300. Providers update this record themselves, so call before visiting.
How can I verify Tia J. Dorn, M.D.'s license?
NPPES lists California license number 172318, 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 Tia J. Dorn, M.D. prescribe under Medicare Part D?
In 2024, Tia J. Dorn, M.D. had 656 Medicare Part D claims for 124 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.