Darren Teshima
Hospitalist Physician · San Diego, CA
Darren Teshima is a hospitalist physician with a practice address in San Diego, California, and NPI 1659696128, issued on Mar 29, 2010. Check the license (California A119251, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Darren Teshima
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A119251 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4077 Fifth Ave, San Diego, CA 92103
- Phone
- (619) 260-7220
- Enumerated
- Mar 29, 2010
- Record last updated
- Mar 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130820001033); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 4077 Fifth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Merna AbdouStudent in an Organized Health Care Education/Training Program1134758279
- Khalid Abdullah, MDInternal Medicine Physician1205462264
- Arash Abiri, MD, PHDStudent in an Organized Health Care Education/Training Program1013858505
- Buraq Al Ghaieb, MDHospitalist Physician1831891712
- Noorhan Amani, MDStudent in an Organized Health Care Education/Training Program1922946755
- William Anapoell, MDHospitalist Physician1982631289
Verify Darren Teshima in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A119251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average hospitalist physician in 2024
264 Medicare Part D claims for 105 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium16 claims
- Carvedilol12 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 one group practice
- Scripps HealthSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darren Teshima among 3,099 hospitalist physician records in California
Darren Teshima is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 44% of them.
- NPI issued2010 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2010 · median 2010 among the 2,505 with a school on file
- Record last updated2018 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Diego → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ali Amirrezvani, M.D.San Diego, CA 921031861485005
- William Anapoell, MDSan Diego, CA 921031982631289
- Deepak Asudani, M.D.San Diego, CA 921031548208812
- Atousa Brandish, M.D.San Diego, CA 921031609814235
- Michael Hogarth, M.D.San Diego, CA 921031225019193
- Matthew Hom, M.D.San Diego, CA 921031881632081
- Bryan Huang, M.D.San Diego, CA 921031881652394
- Ian Jenkins, M.D.San Diego, CA 921031992762520
Common questions
What is Darren Teshima's NPI number?
Darren Teshima's National Provider Identifier (NPI) is 1659696128, issued on Mar 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Darren Teshima located?
The NPPES record lists a practice address at 4077 Fifth Ave, San Diego, CA, 92103. Phone: (619) 260-7220. Providers update this record themselves, so call before visiting.
How can I verify Darren Teshima's license?
NPPES lists California license number A119251, 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 Darren Teshima prescribe under Medicare Part D?
In 2024, Darren Teshima had 264 Medicare Part D claims for 105 beneficiaries; the average among hospitalist physician prescribers was 521. 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.