Dr. Warren H. Tseng, MD
- Part D claims, 2024
- 191
- Publications
- 19
- Industry payments
- $5,412
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, 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. Warren H. Tseng is a general surgeon in San Diego, California
Dr. Tseng practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Tseng's NPI, 1851558514, was assigned on May 20, 2008. Dr. Tseng graduated from University of Kansas School of Medicine - Kansas City in 2006. Dr. Tseng's California license number on file is A103915.
- NPI
- 1851558514NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517115918
- NPI enumeration date
- May 20, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren H. Tseng practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Tseng's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Warren H. Tseng is affiliated with 2 sites of care and 1 medical group
Dr. Tseng's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Tseng to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Warren H. 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 |
|---|---|
| Kaiser Permanente San Diego Medical Center | 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. Warren H. Tseng is one of 2,926 general surgeons in California
Surgery is Dr. Tseng's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tseng is board certified in complex general surgical oncology by the American Board of Surgery. Dmand AI has Dr. Tseng's licenses on file in 3 states: California, Arizona and Texas.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Arizona license
- Texas license
Clinical focus
Dmand AI lists mastectomy among the conditions Dr. Tseng treats.
General surgeons near Dr. Tseng
Counts of general surgeons 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. Warren H. Tseng's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Tseng's median patient age at 63, with 63% women.
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 63
Patient panel by sex, all payers
- Women63%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Warren H. Tseng wrote 191 Medicare Part D claims in 2024
In 2024, Dr. Tseng wrote 191 Medicare Part D claims for 63 patients. 90% of them were for generic drugs. CMS names the drug for 136 of them, across 4 drugs with 11 or more claims each, at $1,122 in total drug cost. In 2023, CMS named 123 claims across 3 drugs.
Dr. Tseng's Part D claims by kind of drug, 2024
- Generic172 claims90%
- Brand-name19 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
- Opioids28%54 of 191 claims
- Antibiotics9%17 of 191 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: 1232024: 13611%
Drugs named by CMS: 4 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
How Dr. Warren H. Tseng takes part in Medicare
Dr. Tseng 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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Dr. Warren H. Tseng has 19 publications on record
Dmand AI links 19 papers to Dr. Tseng, published from 2010 to 2020. 2011 was the busiest year, with 8. The most frequent topics are SEER Program, Breast Neoplasms and Sarcoma. Dr. Tseng has published most often in J Surg Res. Dr. Tseng's most frequent co-authors are Richard John Bold, MD, Robert Jonathan Canter, MD and Steve R. Martinez, MD.
Dr. Tseng's papers by year, 2010 to 2020
Topics Dr. Tseng writes about most
- SEER Program
- Breast Neoplasms
- Sarcoma
- Healthcare Disparities
- Postoperative Complications
- Quality Improvement
- Retroperitoneal Neoplasms
- Breast Neoplasms, Male
Dr. Tseng's most frequent co-authors
- Richard John Bold, MD11 shared papers
- Robert Jonathan Canter, MD10 shared papers
- Steve R. Martinez, MD10 shared papers
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Warren H. Tseng received $5,412 in industry payments from 2018 to 2025
CMS Open Payments shows 21 general payments to Dr. Tseng from 4 drug and device companies from 2018 to 2025. Education make up the largest share, 46% of the total. Intuitive Surgical, Inc. paid the most, $4,273.
General payments to Dr. Tseng by program year, 2018 to 2025
General payments to Dr. Tseng by kind, 2018 to 2025
- Education$2,50046%
- Travel and lodging$1,62530%
- Food and beverage$1,28724%
Companies that paid Dr. Tseng the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Warren H. Tseng graduated from University of Kansas School of Medicine - Kansas City
Dr. Tseng graduated from University of Kansas School of Medicine - Kansas City in 2006.
- Medical school
- Board certified in complex general surgical oncology
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Warren H. Tseng accepts plans from 2 insurance carriers
Dr. Tseng is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Tseng accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Warren H. 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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Warren H. 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. Warren H. Tseng's NPI number?
Dr. Warren H. Tseng's NPI number is 1851558514. It was assigned on May 20, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren H. Tseng?
Dr. Warren H. Tseng is a general surgeon in San Diego, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Warren H. Tseng practice?
Dr. Tseng practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Tseng's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Tseng to 1 group practice or clinic.
What is Dr. Warren H. Tseng's office phone number?
The practice phone on file for Dr. Tseng is (619) 528-5000.
What is Dr. Warren H. Tseng's medical license number?
Dr. Tseng's California license number on file is A103915, one of the licenses on file in 3 states.
Which states has Dr. Warren H. Tseng been licensed in?
Dmand AI has state licenses on file for Dr. Tseng in California (2008 to 2025), Arizona (2014 to 2021) and Texas (2012 to 2020).
What medical group is Dr. Warren H. Tseng part of?
Dr. Tseng is linked to Southern California Permanente Medical Group.
Does Dr. Warren H. Tseng accept Medicare?
Yes. CMS lists Dr. Tseng as accepting Medicare assignment.
Is Dr. Warren H. Tseng board certified?
Yes. Dr. Tseng is board certified in complex general surgical oncology by the American Board of Surgery.
Where did Dr. Warren H. Tseng go to medical school?
Dr. Tseng graduated from University of Kansas School of Medicine - Kansas City in 2006.
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What drugs does Dr. Warren H. Tseng prescribe most?
In 2024 Medicare Part D data, Dr. Tseng's most prescribed drugs by claims were Oxycodone HCl, Ibuprofen and Pantoprazole Sodium.
Has Dr. Warren H. Tseng received payments from drug or device companies?
CMS Open Payments shows $5,412 in general payments to Dr. Tseng from 4 companies from 2018 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Warren H. Tseng been practicing?
Dr. Tseng graduated from medical school in 2006, 20 years ago.
Does Dr. Warren H. Tseng do research?
Dmand AI links 19 publications to Dr. Tseng, published from 2010 to 2020.
Who does Dr. Warren H. Tseng publish with?
Dr. Tseng's most frequent co-authors are Richard John Bold, MD (11 shared papers), Robert Jonathan Canter, MD (10 shared papers) and Steve R. Martinez, MD (10 shared papers).
What insurance does Dr. Warren H. Tseng accept?
Dr. Tseng is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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