Dr. Jason Tai Sun, MD
- Medicare services, 2017
- 552
- Part D claims, 2024
- 818
- Hospital affiliations
- 1
- Industry payments
- $1,634
- Medical groups
- 2
- Practice address
- 1100 Veterans Boulevard, Redwood City, CA 94063
- Practice phone
- Call (650) 299-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Jason Tai Sun is a hematologist and oncologist in Redwood City, California
Dr. Sun practices at Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente.
Dr. Sun's NPI, 1790906188, was assigned on May 1, 2007. Dr. Sun graduated from New York Medical College in 2004. Dr. Sun holds California license A93301.
- NPI
- 1790906188NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032204607
- NPI enumeration date
- May 1, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 299-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jason Tai Sun practices at Redwood City Medical Center in Redwood City, California
Dr. Sun's primary practice is Redwood City Medical Center, at 1100 Veterans Boulevard, Redwood City, CA 94063 in San Mateo County. The practice phone is (650) 299-2000.
- Redwood City Medical Center1100 Veterans Boulevard, Redwood City, CA 94063 · San Mateo CountyPhone(650) 299-2000
Source: Dmand AI Affiliation Data
Dr. Jason Tai Sun is affiliated with 3 sites of care and 2 medical groups
Dr. Sun's primary practice is Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Sun to 1 more group practice or clinic, 1 hospice and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jason Tai Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Redwood City Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason Tai Sun is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Sun is board certified in hematology by the American Board of Internal Medicine. Dr. Sun is licensed in California.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
Hematologists and oncologists near Dr. Sun
Counts of hematologists and oncologists 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. Jason Tai Sun billed Medicare for 552 services in 2017
CMS data shows 552 Medicare services from Dr. Sun across 10 procedure codes in 2017. Medicare paid $16,602 for them.
Dr. Sun's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Lab and pathology
- 2016: 8722017: 23273%
- Office and hospital visits
- 2016: 5732017: 17170%
- Surgery
- 2016: 3192017: 11564%
- Tests and treatments
- 2016: 1502017: 3477%
Where Dr. Sun's Medicare services took place, 2017
- In an office46985%
- In a facility8315%
Dr. Sun compared with the California median for hematologists and oncologists, 2017
- Dr. Sun
- California median
- Medicare services
- 552vs 93241% below
- Part D claims
- 618vs 39457% above
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Sun's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason Tai Sun's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 72, with 50% women.
Dr. Sun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Jason Tai Sun wrote 818 Medicare Part D claims in 2024
In 2024, Dr. Sun wrote 818 Medicare Part D claims for 146 patients. 53% of them were for generic drugs. CMS names the drug for 618 of them, across 18 drugs with 11 or more claims each, at $5,249,346 in total drug cost. In 2023, CMS named 715 claims across 21 drugs.
Dr. Sun's Part D claims by kind of drug, 2024
- Generic431 claims53%
- Brand-name387 claims47%
Dr. Sun'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. Sun's Part D claims, 2024
- Opioids1%11 of 818 claims
- Antibiotics1%12 of 818 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: 7152024: 61814%
Drugs named by CMS: 18 in 2024, 21 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. Jason Tai Sun takes part in Medicare
Dr. Sun 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. Jason Tai Sun received $1,634 in industry payments from 2016 to 2020
CMS Open Payments shows 88 general payments to Dr. Sun from 25 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $299.
General payments to Dr. Sun by program year, 2016 to 2020
Companies that paid Dr. Sun the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jason Tai Sun graduated from New York Medical College
Dr. Sun graduated from New York Medical College in 2004.
- Medical school
- Board certified in hematology
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Jason Tai Sun accepts plans from 2 insurance carriers
Dr. Sun 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. Sun accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jason Tai Sun'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 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) |
| 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. Jason Tai Sun
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. Jason Tai Sun's NPI number?
Dr. Jason Tai Sun's NPI number is 1790906188. It was assigned on May 1, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason Tai Sun?
Dr. Jason Tai Sun is a hematologist and oncologist in Redwood City, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Jason Tai Sun practice?
Dr. Sun practices at 1100 Veterans Boulevard, Redwood City, CA 94063. Dr. Sun's primary practice is Redwood City Medical Center in Redwood City, California, part of Kaiser Permanente. Dmand AI also links Dr. Sun to 1 group practice or clinic, 1 hospice and 1 medical group.
What is Dr. Jason Tai Sun's office phone number?
The practice phone on file for Dr. Sun is (650) 299-2000.
What is Dr. Jason Tai Sun's medical license number?
Dr. Sun holds California license A93301.
Which hospitals is Dr. Jason Tai Sun affiliated with?
Dr. Sun practices at Redwood City Medical Center in Redwood City, California.
What medical group is Dr. Jason Tai Sun part of?
Dr. Sun is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Sun to 1 more medical group.
Does Dr. Jason Tai Sun accept Medicare?
Yes. CMS data shows Dr. Sun billed Medicare for 552 services in 2017, and Dr. Sun accepts Medicare assignment.
Is Dr. Jason Tai Sun board certified?
Yes. Dr. Sun is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Jason Tai Sun bill to Medicare?
In 2017, Dr. Sun's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (85025) and hospital inpatient care (99232).
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Where did Dr. Jason Tai Sun go to medical school?
Dr. Sun graduated from New York Medical College in 2004.
What drugs does Dr. Jason Tai Sun prescribe most?
In 2024 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Tagrisso, Prednisone and Hydroxyurea.
Has Dr. Jason Tai Sun received payments from drug or device companies?
CMS Open Payments shows $1,634 in general payments to Dr. Sun from 25 companies from 2016 to 2020. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Jason Tai Sun been practicing?
Dr. Sun graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Jason Tai Sun accept?
Dr. Sun 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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