Darren L. Teshima
- Medicare services, 2024
- 358
- Medicare patients, 2024
- 101
- Part D claims, 2024
- 264
- Hospital affiliations
- 1
- Industry payments
- $12
- Practice address
- 4077 5th Ave, San Diego, CA 92103
- Practice phone
- Call (619) 294-8111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Darren Teshima's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Darren L. Teshima is a hospitalist in San Diego, California
Darren Teshima practices at Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health.
Darren Teshima's NPI, 1659696128, was assigned on March 29, 2010. Darren Teshima graduated from John A. Burns School of Medicine in 2010. Darren Teshima's California license number on file is A119251.
- NPI
- 1659696128NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800039991
- NPI enumeration date
- March 29, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 294-8111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Darren L. Teshima practices at Scripps Mercy Hospital San Diego in San Diego, California
Darren Teshima's primary practice is Scripps Mercy Hospital San Diego, at 4077 5th Ave, San Diego, CA 92103 in San Diego County. The practice phone is (619) 294-8111.
- Scripps Mercy Hospital San Diego4077 5th Ave, San Diego, CA 92103 · San Diego CountyPhone(619) 294-8111
Source: Dmand AI Affiliation Data
Darren L. Teshima is affiliated with 3 sites of care and 2 medical groups
Darren Teshima's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Darren Teshima to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Darren L. Teshima's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Darren Teshima practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Mercy Hospital San Diego | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Darren L. Teshima is one of 3,186 hospitalists in California
Hospitalist is Darren Teshima's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Darren Teshima is board certified in internal medicine by the American Board of Internal Medicine. Darren Teshima has a license on file in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, anemia, cardiac arrhythmia, circulation problems, congestive heart failure, gastrointestinal bleeding and gastrointestinal inflammation among the conditions Darren Teshima treats.
Hospitalists near Darren Teshima
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Darren L. Teshima billed Medicare for 358 services in 2024
CMS data shows 358 Medicare services from Darren Teshima across 2 procedure codes in 2024, for 101 Medicare patients. Medicare paid $34,155 for them. Every service was in a facility, such as a hospital, rather than an office.
Darren Teshima's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4052024: 35812%
Darren Teshima compared with the California median for hospitalists, 2024
- Darren Teshima
- California median
- Medicare services
- 358vs 43017% below
- Medicare patients
- 101vs 20150% below
- Part D claims
- 28vs 6959% below
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Darren Teshima's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Darren Teshima?
Medicare shows one payer. Book a meeting to get commercial claims data for Darren Teshima and other hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Darren L. Teshima treated 101 Medicare patients in 2024, average age 80
CMS counts 101 Medicare patients who saw Darren Teshima in 2024. The largest group is 85 and over, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 2.38, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Darren Teshima's median patient age at 75, with 49% women.
Darren Teshima's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Darren Teshima's Medicare patients by sex, 2024
- Women5050%
- Men5150%
Chronic conditions among Darren Teshima's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease55%
- Mood disorders55%
- Arthritis50%
- Heart failure50%
- Atrial fibrillation47%
- Chronic kidney disease47%
Share of Medicare patients with each condition. A patient can have several.
Darren Teshima's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Darren L. Teshima wrote 264 Medicare Part D claims in 2024
In 2024, Darren Teshima wrote 264 Medicare Part D claims for 105 patients. 86% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $79 in total drug cost. In 2023, CMS named 46 claims across 4 drugs.
Darren Teshima's Part D claims by kind of drug, 2024
- Generic227 claims86%
- Brand-name and other37 claims14%
Darren Teshima's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Darren Teshima's Part D claims, 2024
- Opioids7%18 of 264 claims
- Antibiotics15%39 of 264 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 462024: 2839%
Drugs named by CMS: 2 in 2024, 4 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Darren L. Teshima takes part in Medicare
Darren Teshima accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Darren L. Teshima received $12 in industry payments in 2017
CMS Open Payments shows 1 general payment to Darren Teshima from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $12.
Companies that paid Darren Teshima the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Darren L. Teshima graduated from John A. Burns School of Medicine
Darren Teshima graduated from John A. Burns School of Medicine in 2010.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Darren L. Teshima accepts plans from 5 insurance carriers
Darren Teshima is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Darren Teshima accepts, by number of carriers
- HMO3
- Medicare3
- POS3
- PPO3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Darren L. Teshima's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Darren L. Teshima
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Darren L. Teshima's NPI number?
Darren L. Teshima's NPI number is 1659696128. It was assigned on March 29, 2010, and it is active in the NPI Registry.
What does Darren L. Teshima specialize in?
Darren L. Teshima is a hospitalist in San Diego, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Darren L. Teshima practice?
Darren Teshima practices at 4077 5th Ave, San Diego, CA 92103. Darren Teshima's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. Dmand AI also links Darren Teshima to 2 group practices and clinics and 1 medical group.
What is Darren L. Teshima's office phone number?
The practice phone on file for Darren Teshima is (619) 294-8111.
What is Darren L. Teshima's medical license number?
Darren Teshima's California license number on file is A119251.
Which hospitals is Darren L. Teshima affiliated with?
Darren Teshima practices at Scripps Mercy Hospital San Diego in San Diego, California.
What medical group is Darren L. Teshima part of?
Darren Teshima is linked to Scripps Clinic Medical Group. Dmand AI links Darren Teshima to 1 more medical group.
Does Darren L. Teshima accept Medicare?
Yes. CMS data shows Darren Teshima billed Medicare for 358 services in 2024, and Darren Teshima accepts Medicare assignment.
How many Medicare patients does Darren L. Teshima see?
CMS counts 101 Medicare patients who saw Darren Teshima in 2024, with an average age of 80.
Is Darren L. Teshima board certified?
Yes. Darren Teshima is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Darren L. Teshima bill to Medicare?
In 2024, Darren Teshima's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Darren L. Teshima go to medical school?
Darren Teshima graduated from John A. Burns School of Medicine in 2010.
What drugs does Darren L. Teshima prescribe most?
In 2024 Medicare Part D data, Darren Teshima's most prescribed drugs by claims were Atorvastatin Calcium and Carvedilol.
Has Darren L. Teshima received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Darren Teshima from 1 company from 2017 to 2017. The largest total came from ViiV Healthcare Company.
How long has Darren L. Teshima been practicing?
Darren Teshima graduated from medical school in 2010, 16 years ago.
What insurance does Darren L. Teshima accept?
Darren Teshima is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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