Dr. Earl Tso, MD
- Part D claims, 2024
- 413
- Hospital affiliations
- 1
- Industry payments
- $4,771
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 2051 Marengo St, Room C2K100, Los Angeles, CA 90033
- Practice phone
- Call (323) 226-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tso'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.
Dr. Earl Tso is an internist in Los Angeles, California
Dr. Tso practices at Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
Dr. Tso's NPI, 1831121474, was assigned on July 6, 2006. Dr. Tso graduated from Keck School of Medicine of USC in 1989. Dr. Tso holds California license G069506.
- NPI
- 1831121474NPI Registry (opens in a new tab)
- NPI enumeration date
- July 6, 2006
- NPI status
- Active
- Practice phone
- (323) 226-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Earl Tso practices at Los Angeles General Medical Center in Los Angeles, California
Dr. Tso's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 226-2800.
- Los Angeles General Medical Center2051 Marengo St, Room C2K100, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 226-2800
Source: Dmand AI Affiliation Data
Dr. Earl Tso is affiliated with 1 site of care
Dr. Tso's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dr. Tso's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Earl Tso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tso practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Angeles General Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Earl Tso is one of 16,751 internists in California
Internal medicine is Dr. Tso's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tso is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tso is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Tso
Counts of internists 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
Dr. Earl Tso's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Tso's median patient age at 60, with 9% women.
Dr. Tso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women9%
- Men91%
Source: Dmand AI Patient Panel Data
Dr. Earl Tso wrote 413 Medicare Part D claims in 2024
In 2024, Dr. Tso wrote 413 Medicare Part D claims. 73% of them were for generic drugs. CMS names the drug for 292 of them, across 16 drugs with 11 or more claims each, at $273,281 in total drug cost. In 2023, CMS named 220 claims across 14 drugs.
Dr. Tso's Part D claims by kind of drug, 2024
- Generic301 claims73%
- Brand-name112 claims27%
Dr. Tso'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2202024: 29233%
Drugs named by CMS: 16 in 2024, 14 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
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Dr. Earl Tso received $4,771 in industry payments from 2016 to 2025
CMS Open Payments shows 54 general payments to Dr. Tso from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $1,877.
General payments to Dr. Tso by program year, 2016 to 2025
Companies that paid Dr. Tso the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Earl Tso graduated from Keck School of Medicine of USC
Dr. Tso graduated from Keck School of Medicine of USC in 1989.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Earl Tso accepts plans from 1 insurance carrier
Dr. Tso is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- LA Care
Plan types Dr. Tso accepts, by number of carriers
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Earl Tso'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Dr. Earl Tso
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Earl Tso's NPI number?
Dr. Earl Tso's NPI number is 1831121474. It was assigned on July 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Earl Tso?
Dr. Earl Tso is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Earl Tso practice?
Dr. Tso practices at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033. Dr. Tso's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
What is Dr. Earl Tso's office phone number?
The practice phone on file for Dr. Tso is (323) 226-2800.
What is Dr. Earl Tso's medical license number?
Dr. Tso holds California license G069506.
Which hospitals is Dr. Earl Tso affiliated with?
Dr. Tso practices at Los Angeles General Medical Center in Los Angeles, California.
Is Dr. Earl Tso board certified?
Yes. Dr. Tso is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Earl Tso go to medical school?
Dr. Tso graduated from Keck School of Medicine of USC in 1989.
What drugs does Dr. Earl Tso prescribe most?
In 2024 Medicare Part D data, Dr. Tso's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Earl Tso received payments from drug or device companies?
CMS Open Payments shows $4,771 in general payments to Dr. Tso from 9 companies from 2016 to 2025. The largest total came from ViiV Healthcare Company.
How long has Dr. Earl Tso been practicing?
Dr. Tso graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Earl Tso accept?
Dr. Tso is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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