Dr. Andy M. Chan, DO
- Medicare services, 2024
- 463
- Medicare patients, 2024
- 211
- Part D claims, 2024
- 348
- Hospital affiliations
- 1
- Industry payments
- $83
- Practice address
- 4077 5th Ave, San Diego, CA 92103
- Practice phone
- Call (619) 294-8111
- 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. Andy M. Chan is an internist in San Diego, California
Dr. Chan practices at Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health.
Dr. Chan's NPI, 1104480912, was assigned on April 26, 2019. Dr. Chan graduated from Touro University California - Vallejo in 2020. Dr. Chan's California license number on file is 20A20352.
- NPI
- 1104480912NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274908918
- NPI enumeration date
- April 26, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 294-8111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andy M. Chan practices at Scripps Mercy Hospital San Diego in San Diego, California
Dr. Chan's primary practice is Scripps Mercy Hospital San Diego, at 4077 5th Ave, San Diego, CA 92103 in San Diego County. The practice phone is (619) 294-8111.
- Scripps Mercy Hospital San Diego4077 5th Ave, San Diego, CA 92103 · San Diego CountyPhone(619) 294-8111
Source: Dmand AI Affiliation Data
Dr. Andy M. Chan is affiliated with 6 sites of care and 5 medical groups
Dr. Chan's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. The medical group on file is Family Health Centers of San Diego. Dmand AI also links Dr. Chan to 5 more group practices and clinics and 4 medical groups, 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. Andy M. Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Mercy Hospital San Diego | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andy M. 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. Dr. Chan has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
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. Andy M. Chan billed Medicare for 463 services in 2024
CMS data shows 463 Medicare services from Dr. Chan across 8 procedure codes in 2024, for 211 Medicare patients. Medicare paid $40,208 for them.
Dr. Chan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1342024: 437226%
- Other services
- 2023: 02024: 26
Where Dr. Chan's Medicare services took place, 2024
- In an office9721%
- In a facility36679%
Dr. Chan compared with the California median for internists, 2024
- Dr. Chan
- California median
- Medicare services
- 463vs 36128% above
- Medicare patients
- 211vs 15140% above
- Part D claims
- 46vs 42189% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chan'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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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. Andy M. Chan treated 211 Medicare patients in 2024, average age 75
CMS counts 211 Medicare patients who saw Dr. Chan in 2024. The largest group is 65 to 74, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 2.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 68, with 48% women.
Dr. Chan's Medicare patients by age, 2024
Dr. Chan's Medicare patients by sex, 2024
- Women9445%
- Men11755%
Chronic conditions among Dr. Chan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Heart failure55%
- Ischemic heart disease53%
- Diabetes52%
- Arthritis51%
- Chronic kidney disease51%
- Mood disorders49%
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 68
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andy M. Chan wrote 348 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 348 Medicare Part D claims for 111 patients. 81% of them were for generic drugs. CMS names the drug for 46 of them, across 4 drugs with 11 or more claims each, at $231 in total drug cost. In 2023, CMS named 50 claims across 3 drugs.
Dr. Chan's Part D claims by kind of drug, 2024
- Generic281 claims81%
- Brand-name and other67 claims19%
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
- Opioids8%28 of 348 claims
- Antibiotics15%52 of 348 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: 502024: 468%
Drugs named by CMS: 4 in 2024, 3 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. Andy M. 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)
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Dr. Andy M. Chan received $83 in industry payments in 2021
CMS Open Payments shows 4 general payments to Dr. Chan from 3 drug and device companies in 2021. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $42.
Companies that paid Dr. Chan the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andy M. Chan graduated from Touro University California - Vallejo
Dr. Chan graduated from Touro University California - Vallejo in 2020.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Andy M. Chan accepts plans from 3 insurance carriers
Dr. Chan is in network with 3 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- CMS Medicare
Plan types Dr. Chan accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Andy M. 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) |
| 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. Andy M. 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. Andy M. Chan's NPI number?
Dr. Andy M. Chan's NPI number is 1104480912. It was assigned on April 26, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Andy M. Chan?
Dr. Andy M. Chan is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Andy M. Chan practice?
Dr. Chan practices at 4077 5th Ave, San Diego, CA 92103. Dr. Chan's primary practice is Scripps Mercy Hospital San Diego in San Diego, California, part of Scripps Health. Dmand AI also links Dr. Chan to 5 group practices and clinics and 4 medical groups.
What is Dr. Andy M. Chan's office phone number?
The practice phone on file for Dr. Chan is (619) 294-8111.
What is Dr. Andy M. Chan's medical license number?
Dr. Chan's California license number on file is 20A20352.
Which hospitals is Dr. Andy M. Chan affiliated with?
Dr. Chan practices at Scripps Mercy Hospital San Diego in San Diego, California.
What medical group is Dr. Andy M. Chan part of?
Dr. Chan is linked to Family Health Centers of San Diego. Dmand AI links Dr. Chan to 4 more medical groups.
Does Dr. Andy M. Chan accept Medicare?
Yes. CMS data shows Dr. Chan billed Medicare for 463 services in 2024, and Dr. Chan accepts Medicare assignment.
How many Medicare patients does Dr. Andy M. Chan see?
CMS counts 211 Medicare patients who saw Dr. Chan in 2024, with an average age of 75.
Is Dr. Andy M. Chan board certified?
Yes. Dr. Chan is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Andy M. Chan bill to Medicare?
In 2024, Dr. Chan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Andy M. Chan go to medical school?
Dr. Chan graduated from Touro University California - Vallejo in 2020.
What drugs does Dr. Andy M. Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Prednisone, Atorvastatin Calcium and Furosemide.
Has Dr. Andy M. Chan received payments from drug or device companies?
CMS Open Payments shows $83 in general payments to Dr. Chan from 3 companies from 2021 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Andy M. Chan been practicing?
Dr. Chan graduated from medical school in 2020, 6 years ago.
What insurance does Dr. Andy M. Chan accept?
Dr. Chan is in network with 3 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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