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Dr. Samuel M. Tseng, MD
NPI1821148636PAC ID7618152471
- Part D claims, 2024
- 1,937
- Publications
- 3
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 1425 S Main Street, Walnut Creek, CA 94596
- Practice phone
- Call (925) 295-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tseng's professional email, personal email and mobile number
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Dr. Samuel M. Tseng is an internist in Walnut Creek, California
Dr. Tseng practices at Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
Dr. Tseng's NPI, 1821148636, was assigned on January 12, 2007. Dr. Tseng graduated from David Geffen School of Medicine at UCLA in 1998. Dr. Tseng's California license number on file is A70593.
NPI and contact details
- NPI
- 1821148636NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618152471
- NPI enumeration date
- January 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 295-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Samuel M. Tseng practices at Walnut Creek Medical Center in Walnut Creek, California
Dr. Tseng's primary practice is Walnut Creek Medical Center, at 1425 S Main Street, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (925) 295-4000.
- Walnut Creek Medical Center1425 S Main Street, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 295-4000
Source: Dmand AI Affiliation Data
Dr. Samuel M. Tseng is affiliated with 1 site of care and 1 medical group
Dr. Tseng's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Samuel M. 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 |
|---|---|
| Walnut Creek Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Samuel M. 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 family medicine by the American Board of Family Medicine. Dr. Tseng has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Tseng
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California148internists in Walnut Creek42internists at Walnut Creek Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Samuel M. Tseng's patients have a median age of 82
Across all payers, Dmand AI patient panel data puts Dr. Tseng's median patient age at 82, with 61% 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 82
Patient panel by sex, all payers
- Women61%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Samuel M. Tseng wrote 1,937 Medicare Part D claims in 2024
In 2024, Dr. Tseng wrote 1,937 Medicare Part D claims for 250 patients. 85% of them were for generic drugs. CMS names the drug for 1,517 of them, across 54 drugs with 11 or more claims each, at $74,497 in total drug cost. In 2023, CMS named 1,434 claims across 55 drugs.
Part D claims, 20241,937
Drugs named by CMS54
Total drug cost$74,497
Part D patients250
Dr. Tseng's Part D claims by kind of drug, 2024
- Generic1,637 claims85%
- Brand-name289 claims15%
- Other11 claims1%
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
- Opioids4%82 of 1,937 claims
- Antibiotics4%82 of 1,937 claims
- Antipsychotics, patients 65 and over2%34 of 1,937 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: 1,4342024: 1,5176%
Drugs named by CMS: 54 in 2024, 55 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. Samuel M. 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. Samuel M. Tseng has 3 publications on record
Dmand AI links 3 papers to Dr. Tseng, published from 2012 to 2015. 2015 was the busiest year, with 2. Dr. Tseng's most frequent co-authors are Kevin J. Bozic, MD, Jennifer C. Lai, MBA, MD and Neda Ratanawongsa, MD.
Papers3
Years published2012 to 2015
Dr. Tseng's most frequent co-authors
- Kevin J. Bozic, MD1 shared paper
- Jennifer C. Lai, MBA, MD1 shared paper
- Neda Ratanawongsa, MD1 shared paper
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. Samuel M. Tseng graduated from David Geffen School of Medicine at UCLA
Dr. Tseng graduated from David Geffen School of Medicine at UCLA in 1998.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Samuel M. Tseng accepts plans from 1 insurance carrier
Dr. Tseng is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Tseng accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Samuel M. 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 | 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) |
| 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 |
| 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. Samuel M. 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. Samuel M. Tseng's NPI number?
Dr. Samuel M. Tseng's NPI number is 1821148636. It was assigned on January 12, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Samuel M. Tseng?
Dr. Samuel M. Tseng is an internist in Walnut Creek, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Samuel M. Tseng practice?
Dr. Tseng practices at 1425 S Main Street, Walnut Creek, CA 94596. Dr. Tseng's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
What is Dr. Samuel M. Tseng's office phone number?
The practice phone on file for Dr. Tseng is (925) 295-4000.
What is Dr. Samuel M. Tseng's medical license number?
Dr. Tseng's California license number on file is A70593.
Which hospitals is Dr. Samuel M. Tseng affiliated with?
Dr. Tseng practices at Walnut Creek Medical Center in Walnut Creek, California.
What medical group is Dr. Samuel M. Tseng part of?
Dr. Tseng is linked to The Permanente Medical Group, Inc.
Does Dr. Samuel M. Tseng accept Medicare?
Yes. CMS lists Dr. Tseng as accepting Medicare assignment.
Is Dr. Samuel M. Tseng board certified?
Yes. Dr. Tseng is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. Samuel M. Tseng go to medical school?
Dr. Tseng graduated from David Geffen School of Medicine at UCLA in 1998.
Show 5 more questionsShow fewer questions
What drugs does Dr. Samuel M. Tseng prescribe most?
In 2024 Medicare Part D data, Dr. Tseng's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metoprolol Tartrate.
How long has Dr. Samuel M. Tseng been practicing?
Dr. Tseng graduated from medical school in 1998, 28 years ago.
Does Dr. Samuel M. Tseng do research?
Dmand AI links 3 publications to Dr. Tseng, published from 2012 to 2015.
Who does Dr. Samuel M. Tseng publish with?
Dr. Tseng's most frequent co-authors are Kevin J. Bozic, MD (1 shared paper), Jennifer C. Lai, MBA, MD (1 shared paper) and Neda Ratanawongsa, MD (1 shared paper).
What insurance does Dr. Samuel M. Tseng accept?
Dr. Tseng is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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