Simon Tanksley, MD
Family Medicine Physician · San Marcos, CA
Simon Tanksley, MD is a family medicine physician with a practice address in San Marcos, California, and NPI 1407084098, issued on Jun 23, 2009. Check the license (California 144412, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Simon Tanksley
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 144412 CA
35.099023 OH
MD31884 SC
Self-reported in NPPES; status is on the state search - Practice location
- 400 Craven RD, San Marcos, CA 92078
- Phone
- (619) 528-5000
- Enumerated
- Jun 23, 2009
- Record last updated
- Mar 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20170130002176); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2009
- 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 400 Craven RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Abrams, R.N.Registered Nurse1073991261
- Eric Adiarte, M.D.Obstetrics & Gynecology Physician1902038284
- Shreya Aiyar, MDPediatrics Physician1922685981
- Najlaa Al-Jibouri, PHARM DPharmacist1447438965
- Jennifer Alexander, RCP, RRTPulmonary Function Technologist Certified Respiratory Therapist1023596442
- Marisa Alunni, M.D.Obstetrics & Gynecology Physician1710298476
Verify Simon Tanksley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 144412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average family medicine physician in 2024
1,602 Medicare Part D claims for 169 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium152 claims
- Lisinopril93 claims
- Losartan Potassium80 claims
- Amlodipine Besylate75 claims
- Levothyroxine Sodium73 claims
- Gabapentin71 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: $71.03
3 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. 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.
Bills Medicare through one group practice
- Arch Health Partners IncPoway, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Simon Tanksley among 17,133 family medicine physician records in California
Simon Tanksley, 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 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2005 among the 10,652 with a school on file
- 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).
47 family medicine physician records list a practice address in San Marcos
They are 47 of the 1,985 NPPES records with a practice address in San Marcos, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Marcos → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Imran Ahmed, MDSan Marcos, CA 920781588682561
- Liliana Alvarez-Martinez, MDSan Marcos, CA 920781790833119
- Christopher Cutter, MDSan Marcos, CA 920781538274287
- Luis Esquenazi, M.D.San Marcos, CA 920781700959848
- Corinne Giesemann, MDSan Marcos, CA 920781730115601
- Alan KrystalSan Marcos, CA 920781215078399
- Ledesma Mangubat, MDSan Marcos, CA 920781730237769
- Benny Martin, DOSan Marcos, CA 920781619975232
Common questions
What is Simon Tanksley, MD's NPI number?
Simon Tanksley, MD's National Provider Identifier (NPI) is 1407084098, issued on Jun 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Simon Tanksley, MD located?
The NPPES record lists a practice address at 400 Craven RD, San Marcos, CA, 92078. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Simon Tanksley, MD's license?
NPPES lists California license number 144412, 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 Simon Tanksley, MD prescribe under Medicare Part D?
In 2024, Simon Tanksley, MD had 1,602 Medicare Part D claims for 169 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.