Dr. Mark Sun, MD
- Medicare services, 2024
- 29,323
- Medicare patients, 2024
- 2,886
- Publications
- 6
- Industry payments
- $238
- Affiliated sites
- 2
- Practice address
- 701 E. El Camino Real, 1 Northwest, Mountain View, CA 94040
- Practice phone
- Call (408) 739-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center Mountain View
Surgery Center - Medicare-Certified · Mountain View, California
Find Dr. Sun'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. Mark Sun is a diagnostic radiologist in Mountain View, California
Dr. Sun practices at Surgery Center Mountain View in Mountain View, California.
Dr. Sun's NPI, 1619236957, was assigned on May 7, 2012. Dr. Sun graduated from UC San Diego School of Medicine in 2012. Dr. Sun holds California license A126689.
- NPI
- 1619236957NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002184611
- NPI enumeration date
- May 7, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 739-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Sun practices at Surgery Center Mountain View in Mountain View, California
Dr. Sun's primary practice is Surgery Center Mountain View, at 701 E. El Camino Real, 1 Northwest, Mountain View, CA 94040. The practice phone is (408) 739-6000.
- Surgery Center Mountain View701 E. El Camino Real, 1 Northwest, Mountain View, CA 94040Phone(408) 739-6000
Source: Dmand AI Affiliation Data
Dr. Mark Sun is affiliated with 2 sites of care and 1 medical group
Dr. Sun's primary practice is Surgery Center Mountain View in Mountain View, California. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Sun to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center Mountain View | 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. Mark Sun is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Sun is board certified in diagnostic radiology by the American Board of Radiology. Dr. Sun is licensed in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Sun
Counts of diagnostic radiologists 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. Mark Sun billed Medicare for 29,323 services in 2024
CMS data shows 29,323 Medicare services from Dr. Sun across 64 procedure codes in 2024, for 2,886 Medicare patients. Medicare paid $370,990 for them. Every service was in an office.
Dr. Sun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 22,1062024: 25,61516%
- Imaging
- 2023: 3,4392024: 3,6015%
- Tests and treatments
- 2023: 492024: 107118%
Dr. Sun compared with the California median for diagnostic radiologists, 2024
- Dr. Sun
- California median
- Medicare services
- 29,323vs 2,28112.9 times
- Medicare patients
- 2,886vs 1,3462.1 times
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Sun'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. Sun?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sun and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Sun treated 2,886 Medicare patients in 2024, average age 76
CMS counts 2,886 Medicare patients who saw Dr. Sun in 2024. The largest group is 65 to 74, with 1,268 patients. 75% of them have high cholesterol, and 64% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 59, with 55% women.
Dr. Sun's Medicare patients by age, 2024
Dr. Sun's Medicare patients by sex, 2024
- Women1,89366%
- Men99334%
Chronic conditions among Dr. Sun's Medicare patients, 2024
- High cholesterol75%
- High blood pressure64%
- Arthritis45%
- Osteoporosis24%
- Diabetes21%
- Ischemic heart disease21%
- Cancer19%
- Chronic kidney disease19%
Share of Medicare patients with each condition. A patient can have several.
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 59
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mark 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. Mark Sun has 6 publications on record
Dmand AI links 6 papers to Dr. Sun, published from 2013 to 2016. 2013 was the busiest year, with 3. The most frequent topics are Magnetic Resonance Imaging, Contrast Media and Gadolinium DTPA. Dr. Sun's most frequent co-authors are Claude B. Sirlin, Justin Hong-Jie Tan, MD and Robert Brooke Jeffrey, MD.
Dr. Sun's papers by year, 2013 to 2016
Topics Dr. Sun writes about most
- Magnetic Resonance Imaging
- Contrast Media
- Gadolinium DTPA
- Liver Cirrhosis
Dr. Sun's most frequent co-authors
- Claude B. Sirlin3 shared papers
- Justin Hong-Jie Tan, MD2 shared papers
- Robert Brooke Jeffrey, MD1 shared paper
Recent publications by Dr. Sun
See who Dr. Sun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sun works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Sun received $238 in industry payments from 2016 to 2019
CMS Open Payments shows 2 general payments to Dr. Sun from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $125.
General payments to Dr. Sun by program year, 2016 to 2019
Companies that paid Dr. Sun the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Sun graduated from UC San Diego School of Medicine
Dr. Sun graduated from UC San Diego School of Medicine in 2012.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Mark Sun accepts plans from 14 insurance carriers
Dr. Sun is in network with 14 carriers, including United Healthcare, Aetna and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- United Healthcare
- Aetna
- Elevance
- Alliant Health Plans
- Blue Cross Blue Shield of Michigan
- HCSC
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +6 more carriersWith a free account
Plan types Dr. Sun accepts, by number of carriers
- HMO9
- PPO8
- EPO3
- Medicare2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark 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 DataMedicare Physician & Other Practitioners - 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. Mark 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. Mark Sun's NPI number?
Dr. Mark Sun's NPI number is 1619236957. It was assigned on May 7, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Sun?
Dr. Mark Sun is a diagnostic radiologist in Mountain View, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Mark Sun practice?
Dr. Sun practices at 701 E. El Camino Real, 1 Northwest, Mountain View, CA 94040. Dr. Sun's primary practice is Surgery Center Mountain View in Mountain View, California. Dmand AI also links Dr. Sun to 1 group practice or clinic.
What is Dr. Mark Sun's office phone number?
The practice phone on file for Dr. Sun is (408) 739-6000.
What is Dr. Mark Sun's medical license number?
Dr. Sun holds California license A126689.
What medical group is Dr. Mark Sun part of?
Dr. Sun is linked to Palo Alto Foundation Medical Group.
Does Dr. Mark Sun accept Medicare?
Yes. CMS data shows Dr. Sun billed Medicare for 29,323 services in 2024, and Dr. Sun accepts Medicare assignment.
How many Medicare patients does Dr. Mark Sun see?
CMS counts 2,886 Medicare patients who saw Dr. Sun in 2024, with an average age of 76.
Is Dr. Mark Sun board certified?
Yes. Dr. Sun is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Mark Sun bill to Medicare?
In 2024, Dr. Sun's most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9585) and radiation oncology (77080).
Show 6 more questionsShow fewer questions
Where did Dr. Mark Sun go to medical school?
Dr. Sun graduated from UC San Diego School of Medicine in 2012.
Has Dr. Mark Sun received payments from drug or device companies?
CMS Open Payments shows $238 in general payments to Dr. Sun from 2 companies from 2016 to 2019. The largest total came from Genentech, Inc.
How long has Dr. Mark Sun been practicing?
Dr. Sun graduated from medical school in 2012, 14 years ago.
Does Dr. Mark Sun do research?
Dmand AI links 6 publications to Dr. Sun, published from 2013 to 2016.
Who does Dr. Mark Sun publish with?
Dr. Sun's most frequent co-authors are Claude B. Sirlin (3 shared papers), Justin Hong-Jie Tan, MD (2 shared papers) and Robert Brooke Jeffrey, MD (1 shared paper).
What insurance does Dr. Mark Sun accept?
Dr. Sun is in network with 14 carriers, including United Healthcare, Aetna and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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