Gastroenterol Nurs
Dr. David Tseng, DO
- Medicare services, 2024
- 552
- Medicare patients, 2024
- 211
- Part D claims, 2024
- 251
- Publications
- 1
- MIPS score, 2024
- 95
- Practice address
- 13855 E 14th St, San Leandro, CA 94578
- Practice phone
- Call (510) 357-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Leandro Hospital
San Leandro, California
Find Dr. Tseng'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. David Tseng is an internist in San Leandro, California
Dr. Tseng practices at San Leandro Hospital in San Leandro, California.
Dr. Tseng's NPI, 1699200709, was assigned on April 26, 2017. Dr. Tseng graduated from Touro University California - Vallejo in 2017. Dr. Tseng holds California license 20A17261.
- NPI
- 1699200709NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204259401
- NPI enumeration date
- April 26, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 357-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Tseng practices at San Leandro Hospital in San Leandro, California
Dr. Tseng's primary practice is San Leandro Hospital, at 13855 E 14th St, San Leandro, CA 94578 in Alameda County. The practice phone is (510) 357-6500.
- San Leandro Hospital13855 E 14th St, San Leandro, CA 94578 · Alameda CountyPhone(510) 357-6500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Tseng is affiliated with 2 sites of care and 1 medical group
Dr. Tseng's primary practice is San Leandro Hospital in San Leandro, California. Dr. Tseng is also affiliated with Alameda Health System - Highland Hospital. The medical group on file is Alameda Health System.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Tseng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tseng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Leandro Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Tseng is one of 16,751 internists in California
Internal medicine is Dr. Tseng's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tseng is board certified in internal medicine by the American Board of Internal Medicine. Dr. Tseng is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, cardiac arrhythmia, cellulitis, congestive heart failure, electrolyte disorders, gastrointestinal inflammation and gastrointestinal obstruction among the conditions Dr. Tseng treats.
Internists near Dr. Tseng
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. David Tseng billed Medicare for 552 services in 2024
CMS data shows 552 Medicare services from Dr. Tseng across 4 procedure codes in 2024, for 211 Medicare patients. Medicare paid $61,951 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Tseng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6442024: 55214%
Dr. Tseng compared with the California median for internists, 2024
- Dr. Tseng
- California median
- Medicare services
- 552vs 36153% above
- Medicare patients
- 211vs 15140% above
- Part D claims
- 40vs 42190% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Tseng'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 Dr. Tseng?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tseng and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Tseng treated 211 Medicare patients in 2024, average age 71
CMS counts 211 Medicare patients who saw Dr. Tseng in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 84% are also on Medicaid. Their average risk score is 3.43, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Tseng's median patient age at 66, with 47% women.
Dr. Tseng's Medicare patients by age, 2024
Dr. Tseng's Medicare patients by sex, 2024
- Women10047%
- Men11153%
Chronic conditions among Dr. Tseng's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes55%
- Chronic kidney disease50%
- Heart failure45%
- Mood disorders40%
- Arthritis37%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tseng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women47%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Tseng wrote 251 Medicare Part D claims in 2024
In 2024, Dr. Tseng wrote 251 Medicare Part D claims for 73 patients. 90% of them were for generic drugs. CMS names the drug for 40 of them, across 3 drugs with 11 or more claims each, at $610 in total drug cost. In 2023, CMS named 39 claims across 3 drugs.
Dr. Tseng's Part D claims by kind of drug, 2024
- Generic226 claims90%
- Brand-name and other25 claims10%
Dr. Tseng'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 Dr. Tseng's Part D claims, 2024
- Opioids7%17 of 251 claims
- Antibiotics17%42 of 251 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: 392024: 403%
Drugs named by CMS: 3 in 2024, 3 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
Dr. David Tseng scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Tseng for performance year 2024, reported as part of a group. Dr. Tseng accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Tseng's MIPS scores, performance year 2024
- 95of 100Final score
- 86.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. David Tseng has 1 publication on record
Dmand AI links 1 paper to Dr. Tseng. Dr. Tseng's most frequent co-authors are Amar Al-Juburi, MD and Lorenzo Rossaro, MD.
Dr. Tseng's most frequent co-authors
Recent publications by Dr. Tseng
See who Dr. Tseng researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tseng works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Tseng received $117 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Tseng from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $117.
Companies that paid Dr. Tseng the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Tseng graduated from Touro University California - Vallejo
Dr. Tseng graduated from Touro University California - Vallejo in 2017.
- Medical school
- Board certified in internal medicine
- Board certified in 2019 - 2026
Source: Dmand AI Professional Profile Data
Dr. David Tseng accepts plans from 5 insurance carriers
Dr. Tseng is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Tseng accepts, by number of carriers
- Medicare5
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Tseng'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David Tseng
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. David Tseng's NPI number?
Dr. David Tseng's NPI number is 1699200709. It was assigned on April 26, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. David Tseng?
Dr. David Tseng is an internist in San Leandro, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Tseng practice?
Dr. Tseng practices at 13855 E 14th St, San Leandro, CA 94578. Dr. Tseng's primary practice is San Leandro Hospital in San Leandro, California.
What is Dr. David Tseng's office phone number?
The practice phone on file for Dr. Tseng is (510) 357-6500.
What is Dr. David Tseng's medical license number?
Dr. Tseng holds California license 20A17261.
Which hospitals is Dr. David Tseng affiliated with?
Dr. Tseng is affiliated with Alameda Health System - Highland Hospital.
What medical group is Dr. David Tseng part of?
Dr. Tseng is linked to Alameda Health System.
Does Dr. David Tseng accept Medicare?
Yes. CMS data shows Dr. Tseng billed Medicare for 552 services in 2024, and Dr. Tseng accepts Medicare assignment.
What is Dr. David Tseng's MIPS score?
Dr. Tseng's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
How many Medicare patients does Dr. David Tseng see?
CMS counts 211 Medicare patients who saw Dr. Tseng in 2024, with an average age of 71.
Show 9 more questionsShow fewer questions
Is Dr. David Tseng board certified?
Yes. Dr. Tseng is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. David Tseng bill to Medicare?
In 2024, Dr. Tseng's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. David Tseng go to medical school?
Dr. Tseng graduated from Touro University California - Vallejo in 2017.
What drugs does Dr. David Tseng prescribe most?
In 2024 Medicare Part D data, Dr. Tseng's most prescribed drugs by claims were Amlodipine Besylate, Hydrocodone-Acetaminophen and Calcitonin-Salmon.
Has Dr. David Tseng received payments from drug or device companies?
CMS Open Payments shows $117 in general payments to Dr. Tseng from 1 company from 2019 to 2019. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. David Tseng been practicing?
Dr. Tseng graduated from medical school in 2017, 9 years ago.
Does Dr. David Tseng do research?
Dmand AI links 1 publication to Dr. Tseng.
Who does Dr. David Tseng publish with?
Dr. Tseng's most frequent co-authors are Amar Al-Juburi, MD (1 shared paper) and Lorenzo Rossaro, MD (1 shared paper).
What insurance does Dr. David Tseng accept?
Dr. Tseng is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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