Tyler Sprague, D.O.
Internal Medicine Physician · San Marcos, CA
Tyler Sprague, D.O. is an internal medicine physician with a practice address in San Marcos, California, and NPI 1881077428, issued on Jul 1, 2015. Check the license (California 20A15749, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tyler Sprague
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A15749 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1582 W San Marcos Blvd Ste 100, San Marcos, CA 92078
- Phone
- (760) 304-1383
- Enumerated
- Jul 1, 2015
- Record last updated
- Jun 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20180306000489); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1582 W San Marcos Blvd Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lynette Easler-Silva, NURSE PRACTITIONERAdult Medicine Physician1194600171
- Alan KrystalFamily Medicine Physician1215078399
- Twila Noble, N.P.-CAdult Health Nurse Practitioner1154521250
Verify Tyler Sprague in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,927 Medicare Part D claims for 492 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Cefdinir107 claims
- Eliquis92 claims
- Levothyroxine Sodium90 claims
- Atorvastatin Calcium86 claims
- Amlodipine Besylate64 claims
- Pantoprazole Sodium63 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.
Bills Medicare through 4 group practices
- Care Partners California Medical PCCosta Mesa, CA
- Careconnectmd CA PCCosta Mesa, CA
- GN Medical Associates, IncCosta Mesa, CA
- Grace Hospitalist Group IncWildomar, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tyler Sprague among 17,696 internal medicine physician records in California
Tyler Sprague, D.O. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 76% of them.
- NPI issued2015 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Meenu Bawa, M.DSan Marcos, CA 920781154598571
- Justin Charles, MDSan Marcos, CA 920781811552771
- Lauren Clarine, D.O.San Marcos, CA 920781669738928
- Joseph Czvik, MDSan Marcos, CA 920781528084340
- Sze Hoay Ding, M.D.San Marcos, CA 920781023239035
- Kathryn Germeraad, DOSan Marcos, CA 920781649830498
- Francisco Marquez, M.D.San Marcos, CA 920781316190747
- Minh Nguyen, M.D.San Marcos, CA 920781154403640
Common questions
What is Tyler Sprague, D.O.'s NPI number?
Tyler Sprague, D.O.'s National Provider Identifier (NPI) is 1881077428, issued on Jul 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Tyler Sprague, D.O. located?
The NPPES record lists a practice address at 1582 W San Marcos Blvd Ste 100, San Marcos, CA, 92078. Phone: (760) 304-1383. Providers update this record themselves, so call before visiting.
How can I verify Tyler Sprague, D.O.'s license?
NPPES lists California license number 20A15749, 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 Sprague, D.O. prescribe under Medicare Part D?
In 2024, Tyler Sprague, D.O. had 1,927 Medicare Part D claims for 492 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.