Dr. Simon Chi Yan Chan, MD
- Medicare services, 2022
- 19
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 478
- Hospital affiliations
- 3
- Industry payments
- $641
- Practice address
- 1100 Butte St, Redding, CA 96001
- Practice phone
- Call (530) 244-5454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chan'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. Simon Chi Yan Chan is an internist in Redding, California
Dr. Chan practices at Shasta Regional Medical Center in Redding, California, part of Prime Healthcare Services.
Dr. Chan's NPI, 1063431179, was assigned on July 19, 2006. Dr. Chan graduated from New York University School of Medicine in 1995. Dr. Chan holds California license A70465.
- NPI
- 1063431179NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587613971
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 244-5454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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. Simon Chi Yan Chan practices at Shasta Regional Medical Center in Redding, California
Dr. Chan's primary practice is Shasta Regional Medical Center, at 1100 Butte St, Redding, CA 96001 in Shasta County. The practice phone is (530) 244-5454.
- Shasta Regional Medical Center1100 Butte St, Redding, CA 96001 · Shasta CountyPhone(530) 244-5454
Source: Dmand AI Affiliation Data
Dr. Simon Chi Yan Chan is affiliated with 4 sites of care and 3 medical groups
Dr. Chan's primary practice is Shasta Regional Medical Center in Redding, California, part of Prime Healthcare Services. Dr. Chan is also affiliated with Oroville Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Chan to 1 more hospital, 2 medical groups and 1 home health agency, 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. Simon Chi Yan Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Shasta Regional Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Prime Healthcare Services and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Simon Chi Yan Chan is one of 16,751 internists in California
Internal medicine is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Chan's licenses on file in 4 states: California, Massachusetts, New Hampshire and Virginia.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Massachusetts license
- New Hampshire license
- Virginia license
Clinical focus
Dmand AI lists acute skin infection, chronic diabetes, chronic hypertension, coronary artery disease, lower back pain, rash, skin cyst and syncope & collapse among the conditions Dr. Chan treats.
Internists near Dr. Chan
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. Simon Chi Yan Chan billed Medicare for 19 services in 2022
CMS data shows 19 Medicare services from Dr. Chan across 1 procedure code in 2022, for 24 Medicare patients. Medicare paid $3,000 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chan's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 492022: 1961%
- Surgery
- 2021: 632022: 0100%
Dr. Chan compared with the California median for internists, 2022
- Dr. Chan
- California median
- Medicare services
- 19vs 36195% below
- Medicare patients
- 24vs 15184% below
- Part D claims
- 266vs 42137% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chan's most billed Medicare procedure codes, 2022
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. Chan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Simon Chi Yan Chan treated 24 Medicare patients in 2024, average age 68
CMS counts 24 Medicare patients who saw Dr. Chan in 2024. 75% of them have high blood pressure, and 63% have high cholesterol. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 50, with 54% women.
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol63%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Simon Chi Yan Chan wrote 478 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 478 Medicare Part D claims for 171 patients. 83% of them were for generic drugs. CMS names the drug for 266 of them, across 12 drugs with 11 or more claims each, at $2,210 in total drug cost. In 2023, CMS named 134 claims across 8 drugs.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic396 claims83%
- Brand-name82 claims17%
Dr. Chan'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. Chan's Part D claims, 2024
- Antibiotics15%70 of 478 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: 1342024: 26699%
Drugs named by CMS: 12 in 2024, 8 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. Simon Chi Yan Chan takes part in Medicare
Dr. Chan 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Simon Chi Yan Chan received $641 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Chan from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $122.
General payments to Dr. Chan by program year, 2016 to 2025
Companies that paid Dr. Chan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Simon Chi Yan Chan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chan, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Chan
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Simon Chi Yan Chan graduated from New York University School of Medicine
Dr. Chan graduated from New York University School of Medicine in 1995.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Simon Chi Yan Chan accepts plans from 16 insurance carriers
Dr. Chan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Chan accepts, by number of carriers
- PPO10
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Simon Chi Yan Chan'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) |
| 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. Simon Chi Yan Chan
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. Simon Chi Yan Chan's NPI number?
Dr. Simon Chi Yan Chan's NPI number is 1063431179. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Simon Chi Yan Chan?
Dr. Simon Chi Yan Chan is an internist in Redding, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Simon Chi Yan Chan practice?
Dr. Chan practices at 1100 Butte St, Redding, CA 96001. Dr. Chan's primary practice is Shasta Regional Medical Center in Redding, California, part of Prime Healthcare Services. Dmand AI also links Dr. Chan to 1 hospital, 2 medical groups and 1 home health agency.
What is Dr. Simon Chi Yan Chan's office phone number?
The practice phone on file for Dr. Chan is (530) 244-5454.
What is Dr. Simon Chi Yan Chan's medical license number?
Dr. Chan holds California license A70465, one of the licenses on file in 4 states.
Which states has Dr. Simon Chi Yan Chan been licensed in?
Dmand AI has state licenses on file for Dr. Chan in California (1999 to 2027), Massachusetts (2000 to 2005), New Hampshire (2001) and Virginia (1999 to 2000).
Which hospitals is Dr. Simon Chi Yan Chan affiliated with?
Dr. Chan practices at Shasta Regional Medical Center in Redding, California. Dr. Chan is also affiliated with Oroville Hospital. Dmand AI links Dr. Chan to 1 more hospital.
What medical group is Dr. Simon Chi Yan Chan part of?
Dr. Chan is linked to Vituity. Dmand AI links Dr. Chan to 2 more medical groups.
Does Dr. Simon Chi Yan Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 19 services in 2022, and Dr. Chan accepts Medicare assignment.
How many Medicare patients does Dr. Simon Chi Yan Chan see?
CMS counts 24 Medicare patients who saw Dr. Chan in 2024, with an average age of 68.
Show 7 more questionsShow fewer questions
Is Dr. Simon Chi Yan Chan board certified?
Yes. Dr. Chan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Simon Chi Yan Chan bill to Medicare?
In 2022, Dr. Chan's most billed Medicare services were hospital inpatient care (99223).
Where did Dr. Simon Chi Yan Chan go to medical school?
Dr. Chan graduated from New York University School of Medicine in 1995.
What drugs does Dr. Simon Chi Yan Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Lansoprazole, Sucralfate and Amlodipine Besylate.
Has Dr. Simon Chi Yan Chan received payments from drug or device companies?
CMS Open Payments shows $641 in general payments to Dr. Chan from 10 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Simon Chi Yan Chan been practicing?
Dr. Chan graduated from medical school in 1995, 31 years ago.
What insurance does Dr. Simon Chi Yan Chan accept?
Dr. Chan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card