Circ Cardiovasc Qual Outcomes
Dr. Sandra Anping Tsai, MD
- Medicare services, 2024
- 423
- Medicare patients, 2024
- 242
- Part D claims, 2024
- 1,774
- Publications
- 16
- Clinical trials
- 1
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tsai'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. Sandra Anping Tsai is an internist in Stanford, California
Dr. Tsai practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Tsai's NPI, 1083717359, was assigned on September 5, 2006. Dr. Tsai graduated from UT Southwestern Medical Center in 1995. Dr. Tsai's California license number on file is A65925.
- NPI
- 1083717359NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052372992
- NPI enumeration date
- September 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sandra Anping Tsai practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Tsai's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Sandra Anping Tsai is affiliated with 4 sites of care and 1 medical group
Dr. Tsai's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dr. Tsai is also affiliated with Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Tsai to 1 more hospital and 1 home health agency, each named with a free account. Dr. Tsai'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. Sandra Anping Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sandra Anping Tsai is one of 16,751 internists in California
Internal medicine is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tsai is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Tsai's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Texas license
Clinical focus
Dmand AI lists acid reflux, anxiety, atrial fibrillation and flutter, cardiomyopathy, chronic diabetes, chronic hypertension, chronic kidney disease and coronary artery disease among the conditions Dr. Tsai treats.
Internists near Dr. Tsai
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. Sandra Anping Tsai billed Medicare for 423 services in 2024
CMS data shows 423 Medicare services from Dr. Tsai across 6 procedure codes in 2024, for 242 Medicare patients. Medicare paid $24,715 for them.
Dr. Tsai's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2802024: 30710%
- Other services
- 2023: 612024: 8844%
- Tests and treatments
- 2023: 322024: 2813%
Where Dr. Tsai's Medicare services took place, 2024
- In an office17341%
- In a facility25059%
Dr. Tsai compared with the California median for internists, 2024
- Dr. Tsai
- California median
- Medicare services
- 423vs 36117% above
- Medicare patients
- 242vs 15160% above
- Part D claims
- 1,394vs 4213.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Tsai'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. Tsai?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsai and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sandra Anping Tsai treated 242 Medicare patients in 2024, average age 75
CMS counts 242 Medicare patients who saw Dr. Tsai in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 60, with 61% women.
Dr. Tsai's Medicare patients by age, 2024
Dr. Tsai's Medicare patients by sex, 2024
- Women16367%
- Men7933%
Chronic conditions among Dr. Tsai's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis33%
- Ischemic heart disease28%
- Osteoporosis28%
- Diabetes26%
- Cancer19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tsai'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
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sandra Anping Tsai wrote 1,774 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 1,774 Medicare Part D claims for 200 patients. 87% of them were for generic drugs. CMS names the drug for 1,394 of them, across 41 drugs with 11 or more claims each, at $91,702 in total drug cost. In 2023, CMS named 1,411 claims across 44 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic1,542 claims87%
- Brand-name211 claims12%
- Other21 claims1%
Dr. Tsai'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. Tsai's Part D claims, 2024
- Opioids1%24 of 1,774 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: 1,4112024: 1,3941%
Drugs named by CMS: 41 in 2024, 44 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. Sandra Anping Tsai offers telehealth to Medicare patients
Dr. Tsai accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tsai as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sandra Anping Tsai has 16 publications on record
Dmand AI links 16 papers to Dr. Tsai, published from 2015 to 2024. 2024 was the busiest year, with 4. The most frequent topics are Cardiovascular Diseases, Practice Patterns, Physicians' and Primary Health Care. Dr. Tsai has published most often in Clin Diabetes. Dr. Tsai's most frequent co-authors are Eleanor Gwen Levin, MD, Abha Khandelwal, MD and Jennifer Ann Tremmel, MD.
Dr. Tsai's papers by year, 2015 to 2024
Topics Dr. Tsai writes about most
- Cardiovascular Diseases
- Practice Patterns, Physicians'
- Primary Health Care
- Cardiology
- Diabetes Mellitus, Type 2
- Heart Diseases
Dr. Tsai's most frequent co-authors
- Eleanor Gwen Levin, MD4 shared papers
- Abha Khandelwal, MD3 shared papers
- Jennifer Ann Tremmel, MD3 shared papers
Recent publications by Dr. Tsai
J Telemed Telecare
J Eval Clin Pract
See who Dr. Tsai researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tsai 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. Sandra Anping Tsai has worked on 1 clinical trial
Dmand AI links Dr. Tsai to 1 clinical trial. Conditions studied include Weight Gain and Body Weight Changes.
Conditions in Dr. Tsai's trials
- Weight Gain
- Body Weight Changes
Recent clinical trials with Dr. Tsai
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Sandra Anping Tsai received $840 in industry payments from 2020 to 2025
CMS Open Payments shows 5 general payments to Dr. Tsai from 4 drug and device companies from 2020 to 2025. Consulting fees make up the largest share, 62% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $520.
General payments to Dr. Tsai by program year, 2020 to 2025
General payments to Dr. Tsai by kind, 2020 to 2025
- Consulting fees$52062%
- Food and beverage$32038%
Companies that paid Dr. Tsai the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sandra Anping Tsai has 1 award and honors on record
Dmand AI lists 1 award for Dr. Tsai, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Tsai
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Sandra Anping Tsai graduated from UT Southwestern Medical Center
Dr. Tsai graduated from UT Southwestern Medical Center in 1995.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Sandra Anping Tsai accepts plans from 7 insurance carriers
Dr. Tsai is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Tsai accepts, by number of carriers
- Medicare4
- PPO4
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Sandra Anping Tsai'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Sandra Anping Tsai
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. Sandra Anping Tsai's NPI number?
Dr. Sandra Anping Tsai's NPI number is 1083717359. It was assigned on September 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sandra Anping Tsai?
Dr. Sandra Anping Tsai is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sandra Anping Tsai practice?
Dr. Tsai practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Tsai's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Tsai to 1 hospital and 1 home health agency.
What is Dr. Sandra Anping Tsai's office phone number?
The practice phone on file for Dr. Tsai is (650) 723-4000.
What is Dr. Sandra Anping Tsai's medical license number?
Dr. Tsai's California license number on file is A65925, one of the licenses on file in 2 states.
Which states has Dr. Sandra Anping Tsai been licensed in?
Dmand AI has state licenses on file for Dr. Tsai in California (1998 to 2025) and Texas (1996 to 1999).
Which hospitals is Dr. Sandra Anping Tsai affiliated with?
Dr. Tsai practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dr. Tsai is also affiliated with Stanford Health Care Tri-Valley. Dmand AI links Dr. Tsai to 1 more hospital.
What medical group is Dr. Sandra Anping Tsai part of?
Dr. Tsai is linked to Stanford Health Care.
Does Dr. Sandra Anping Tsai accept Medicare?
Yes. CMS data shows Dr. Tsai billed Medicare for 423 services in 2024, and Dr. Tsai accepts Medicare assignment.
Does Dr. Sandra Anping Tsai offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tsai as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Sandra Anping Tsai see?
CMS counts 242 Medicare patients who saw Dr. Tsai in 2024, with an average age of 75.
Is Dr. Sandra Anping Tsai board certified?
Yes. Dr. Tsai is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Sandra Anping Tsai bill to Medicare?
In 2024, Dr. Tsai's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and medicare service (G0439).
Where did Dr. Sandra Anping Tsai go to medical school?
Dr. Tsai graduated from UT Southwestern Medical Center in 1995.
What drugs does Dr. Sandra Anping Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Sandra Anping Tsai received payments from drug or device companies?
CMS Open Payments shows $840 in general payments to Dr. Tsai from 4 companies from 2020 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Sandra Anping Tsai been practicing?
Dr. Tsai graduated from medical school in 1995, 31 years ago.
Does Dr. Sandra Anping Tsai do research?
Dmand AI links 16 publications to Dr. Tsai, published from 2015 to 2024. Dr. Tsai has worked on 1 clinical trial.
Who does Dr. Sandra Anping Tsai publish with?
Dr. Tsai's most frequent co-authors are Eleanor Gwen Levin, MD (4 shared papers), Abha Khandelwal, MD (3 shared papers) and Jennifer Ann Tremmel, MD (3 shared papers).
What insurance does Dr. Sandra Anping Tsai accept?
Dr. Tsai is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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