Tyler Michael Seibert, M.D., PH.D.
Radiation Oncology Physician · San Diego, CA
Tyler Michael Seibert, M.D., PH.D. is a radiation oncology physician with a practice address in San Diego, California, and NPI 1679815963, issued on Mar 25, 2013. Check the license (California A135004, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tyler Michael Seibert
- Credential
- M.D., PH.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A135004 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (858) 822-6040
- Enumerated
- Mar 25, 2013
- Record last updated
- Jun 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180628003459); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alison A'Court, MDAnesthesiology Physician1912218199
- Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
- Joseph Abdelmalek, M.DNephrology Physician1740485531
- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Tyler Michael Seibert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A135004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average radiation oncology physician in 2024
133 Medicare Part D claims for 35 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl81 claims
- Oxybutynin Chloride Er22 claims
- Bicalutamide15 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: $7,469.31
14 payments; by number, the most common kind was food and beverage; the largest payer was GE Healthcare. The 3,275 providers of this specialty with any payment received $1,897.85 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.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tyler Michael Seibert among 735 radiation oncology physician records in California
Tyler Michael Seibert, M.D., PH.D. is one of 735 radiation oncology physician records with a practice address in California. 83% 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 76% of them.
- NPI issued2013 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2013 · median 2005 among the 545 with a school on file
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in San Diego → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Donald Fuller, M.D.San Diego, CA 921031285632711
- Adam Horn, M.D.San Diego, CA 921031982979019
- Tahir Ijaz, M.D.San Diego, CA 921031225036742
- Anuradha Koka, M.D.San Diego, CA 921031538153549
- Jyoti Mayadev, M.DSan Diego, CA 921031902906902
- Arno Mundt, M.D.San Diego, CA 921031790708808
- Chika Nwachukwu, MDSan Diego, CA 921031194138263
- Parag Sanghvi, M.D., M..S.P.H.San Diego, CA 921031801005152
Common questions
What is Tyler Michael Seibert, M.D., PH.D.'s NPI number?
Tyler Michael Seibert, M.D., PH.D.'s National Provider Identifier (NPI) is 1679815963, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tyler Michael Seibert, M.D., PH.D. located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (858) 822-6040. Providers update this record themselves, so call before visiting.
How can I verify Tyler Michael Seibert, M.D., PH.D.'s license?
NPPES lists California license number A135004, 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 Tyler Michael Seibert, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Tyler Michael Seibert, M.D., PH.D. had 133 Medicare Part D claims for 35 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.