Dr. Christopher Sun, MD
- Medicare services, 2024
- 1,302
- Medicare patients, 2024
- 398
- Part D claims, 2024
- 7,177
- Hospital affiliations
- 3
- Industry payments
- $6,391
- Practice address
- 520 N Prospect Ave, Redondo Beach, CA 90277
- Practice phone
- Call (310) 793-8075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Medical Institute
Redondo Beach, 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. Christopher Sun is an internist in Redondo Beach, California
Dr. Sun practices at Providence Medical Institute in Redondo Beach, California.
Dr. Sun's NPI, 1245407105, was assigned on May 9, 2008. Dr. Sun holds California license A102353.
- NPI
- 1245407105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577628072
- NPI enumeration date
- May 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 793-8075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Sun practices at Providence Medical Institute in Redondo Beach, California
Dr. Sun's primary practice is Providence Medical Institute, at 520 N Prospect Ave, Redondo Beach, CA 90277 in Los Angeles County. The practice phone is (310) 793-8075.
- Providence Medical Institute520 N Prospect Ave, Redondo Beach, CA 90277 · Los Angeles CountyPhone(310) 793-8075
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher Sun is affiliated with 9 sites of care and 1 medical group
Dr. Sun's primary practice is Providence Medical Institute in Redondo Beach, California. Dr. Sun is also affiliated with Torrance Memorial Medical Center. The medical group on file is Providence Medical Institute. Dmand AI also links Dr. Sun to 2 more hospitals, 4 home health agencies and 1 group practice or clinic, each 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. Christopher Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Medical Institute | Available with a free account |
| +8 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Sun is one of 16,751 internists in California
Internal medicine is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sun is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Sun
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. Christopher Sun billed Medicare for 1,302 services in 2024
CMS data shows 1,302 Medicare services from Dr. Sun across 13 procedure codes in 2024, for 398 Medicare patients. Medicare paid $62,126 for them. Every service was in an office.
Dr. Sun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7822024: 8033%
- Other services
- 2023: 3272024: 36010%
- Tests and treatments
- 2023: 1252024: 1186%
- Lab and pathology
- 2023: 02024: 21
Dr. Sun compared with the California median for internists, 2024
- Dr. Sun
- California median
- Medicare services
- 1,302vs 3613.6 times
- Medicare patients
- 398vs 1512.6 times
- Part D claims
- 6,435vs 42115.3 times
Medians across 15,815 internists 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Sun treated 398 Medicare patients in 2024, average age 75
CMS counts 398 Medicare patients who saw Dr. Sun in 2024. The largest group is 65 to 74, with 189 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 67, with 43% women.
Dr. Sun's Medicare patients by age, 2024
Dr. Sun's Medicare patients by sex, 2024
- Women17343%
- Men22557%
Chronic conditions among Dr. Sun's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes32%
- Ischemic heart disease24%
- Chronic kidney disease22%
- Osteoporosis20%
- Atrial fibrillation16%
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 67
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Sun wrote 7,177 Medicare Part D claims in 2024
In 2024, Dr. Sun wrote 7,177 Medicare Part D claims for 598 patients. 89% of them were for generic drugs. CMS names the drug for 6,435 of them, across 104 drugs with 11 or more claims each, at $503,237 in total drug cost. In 2023, CMS named 6,123 claims across 105 drugs.
Dr. Sun's Part D claims by kind of drug, 2024
- Generic6,364 claims89%
- Brand-name787 claims11%
- Other26 claims0%
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
- Opioids0%19 of 7,177 claims
- Antibiotics2%124 of 7,177 claims
- Antipsychotics, patients 65 and over0%25 of 7,177 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: 6,1232024: 6,4355%
Drugs named by CMS: 104 in 2024, 105 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. Christopher Sun offers telehealth to Medicare patients
Dr. Sun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sun as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Christopher Sun received $6,391 in industry payments from 2016 to 2025
CMS Open Payments shows 28 general payments to Dr. Sun from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Ironwood Pharmaceuticals, Inc paid the most, $3,733.
General payments to Dr. Sun by program year, 2016 to 2025
Companies that paid Dr. Sun the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christopher 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 | 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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Christopher 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. Christopher Sun's NPI number?
Dr. Christopher Sun's NPI number is 1245407105. It was assigned on May 9, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Sun?
Dr. Christopher Sun is an internist in Redondo Beach, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Christopher Sun practice?
Dr. Sun practices at 520 N Prospect Ave, Redondo Beach, CA 90277. Dr. Sun's primary practice is Providence Medical Institute in Redondo Beach, California. Dmand AI also links Dr. Sun to 2 hospitals, 4 home health agencies and 1 group practice or clinic.
What is Dr. Christopher Sun's office phone number?
The practice phone on file for Dr. Sun is (310) 793-8075.
What is Dr. Christopher Sun's medical license number?
Dr. Sun holds California license A102353.
Which hospitals is Dr. Christopher Sun affiliated with?
Dr. Sun is affiliated with Torrance Memorial Medical Center. Dmand AI links Dr. Sun to 2 more hospitals.
What medical group is Dr. Christopher Sun part of?
Dr. Sun is linked to Providence Medical Institute.
Does Dr. Christopher Sun accept Medicare?
Yes. CMS data shows Dr. Sun billed Medicare for 1,302 services in 2024, and Dr. Sun accepts Medicare assignment.
Does Dr. Christopher Sun offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sun as offering telehealth services.
How many Medicare patients does Dr. Christopher Sun see?
CMS counts 398 Medicare patients who saw Dr. Sun in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Christopher Sun bill to Medicare?
In 2024, Dr. Sun's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0008).
What drugs does Dr. Christopher Sun prescribe most?
In 2024 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Losartan Potassium.
Has Dr. Christopher Sun received payments from drug or device companies?
CMS Open Payments shows $6,391 in general payments to Dr. Sun from 12 companies from 2016 to 2025. The largest total came from Ironwood Pharmaceuticals, Inc.
How long has Dr. Christopher Sun been practicing?
Dr. Sun graduated from medical school in 2003, 23 years ago.
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