Dr. Angela A. Chiang, MD
- Medicare services, 2024
- 1,819
- Medicare patients, 2024
- 441
- Part D claims, 2024
- 48
- MIPS score, 2024
- 100
- Hospital affiliations
- 3
- Practice address
- 438 W Las Tunas Drive, San Gabriel, CA 91776
- Practice phone
- Call (626) 289-5454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chiang's professional email, personal email and mobile number
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Dr. Angela A. Chiang is an internist in San Gabriel, California
Dr. Chiang practices at AHMC San Gabriel Valley Medical Center in San Gabriel, California, part of AHMC Healthcare.
Dr. Chiang's NPI, 1679811384, was assigned on January 30, 2013. Dr. Chiang graduated from Ross University School of Medicine in 2013. Dr. Chiang holds California license A158413.
- NPI
- 1679811384NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527319821
- NPI enumeration date
- January 30, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 289-5454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Angela A. Chiang practices at AHMC San Gabriel Valley Medical Center in San Gabriel, California
Dr. Chiang's primary practice is AHMC San Gabriel Valley Medical Center, at 438 W Las Tunas Drive, San Gabriel, CA 91776 in Los Angeles County. The practice phone is (626) 289-5454.
- AHMC San Gabriel Valley Medical Center438 W Las Tunas Drive, San Gabriel, CA 91776 · Los Angeles CountyPhone(626) 289-5454
Source: Dmand AI Affiliation Data
Dr. Angela A. Chiang is affiliated with 4 sites of care and 1 medical group
Dr. Chiang's primary practice is AHMC San Gabriel Valley Medical Center in San Gabriel, California, part of AHMC Healthcare. Dr. Chiang is also affiliated with Garfield Medical Center. The medical group on file is ApolloMed Hospitalists. Dmand AI also links Dr. Chiang to 1 more hospital and 1 physician office, 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. Angela A. Chiang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AHMC San Gabriel Valley Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Angela A. Chiang is one of 16,751 internists in California
Internal medicine is Dr. Chiang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chiang is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Chiang's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New York license
Clinical focus
Dmand AI lists pneumonia and respiratory infection, sepsis and urinary tract infection among the conditions Dr. Chiang treats.
Internists near Dr. Chiang
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. Angela A. Chiang billed Medicare for 1,819 services in 2024
CMS data shows 1,819 Medicare services from Dr. Chiang across 4 procedure codes in 2024, for 441 Medicare patients. Medicare paid $170,645 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chiang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,7672024: 1,81934%
Dr. Chiang compared with the California median for internists, 2024
- Dr. Chiang
- California median
- Medicare services
- 1,819vs 3615.0 times
- Medicare patients
- 441vs 1512.9 times
- Part D claims
- 23vs 42195% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chiang'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. Angela A. Chiang treated 441 Medicare patients in 2024, average age 81
CMS counts 441 Medicare patients who saw Dr. Chiang in 2024. The largest group is 85 and over, with 189 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 90% are also on Medicaid. Their average risk score is 3.74, 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. Chiang's median patient age at 65, with 43% women.
Dr. Chiang's Medicare patients by age, 2024
Dr. Chiang's Medicare patients by sex, 2024
- Women24255%
- Men19945%
Chronic conditions among Dr. Chiang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes70%
- Chronic kidney disease69%
- Alzheimer's and dementia64%
- Ischemic heart disease62%
- Arthritis56%
- Heart failure56%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chiang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Angela A. Chiang wrote 48 Medicare Part D claims in 2024
In 2024, Dr. Chiang wrote 48 Medicare Part D claims for 32 patients. 85% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $847 in total drug cost. In 2022, CMS named 181 claims across 9 drugs.
Dr. Chiang's Part D claims by kind of drug, 2024
- Generic41 claims85%
- Brand-name and other7 claims15%
Dr. Chiang's most prescribed drugs by claims, 2023
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. Chiang's Part D claims, 2024
- Antibiotics81%39 of 48 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1812023: 2387%
Drugs named by CMS: 2 in 2023, 9 in 2022.
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. Angela A. Chiang scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Chiang for performance year 2024, reported individually. Dr. Chiang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chiang's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Angela A. Chiang received $2,298 in industry payments from 2016 to 2025
CMS Open Payments shows 30 general payments to Dr. Chiang from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $861.
General payments to Dr. Chiang by program year, 2016 to 2025
Companies that paid Dr. Chiang 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. Angela A. Chiang graduated from Ross University School of Medicine
Dr. Chiang graduated from Ross University School of Medicine in 2013.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Angela A. Chiang accepts plans from 7 insurance carriers
Dr. Chiang is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- DentaQuest
Plan types Dr. Chiang accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Angela A. Chiang'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)Clinician Public Reporting: Overall MIPS Performance (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. Angela A. Chiang
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. Angela A. Chiang's NPI number?
Dr. Angela A. Chiang's NPI number is 1679811384. It was assigned on January 30, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Angela A. Chiang?
Dr. Angela A. Chiang is an internist in San Gabriel, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Angela A. Chiang practice?
Dr. Chiang practices at 438 W Las Tunas Drive, San Gabriel, CA 91776. Dr. Chiang's primary practice is AHMC San Gabriel Valley Medical Center in San Gabriel, California, part of AHMC Healthcare. Dmand AI also links Dr. Chiang to 1 hospital and 1 physician office.
What is Dr. Angela A. Chiang's office phone number?
The practice phone on file for Dr. Chiang is (626) 289-5454.
What is Dr. Angela A. Chiang's medical license number?
Dr. Chiang holds California license A158413, one of the licenses on file in 2 states.
Which states has Dr. Angela A. Chiang been licensed in?
Dmand AI has state licenses on file for Dr. Chiang in California (2018 to 2026) and New York (2018 to 2020).
Which hospitals is Dr. Angela A. Chiang affiliated with?
Dr. Chiang practices at AHMC San Gabriel Valley Medical Center in San Gabriel, California. Dr. Chiang is also affiliated with Garfield Medical Center. Dmand AI links Dr. Chiang to 1 more hospital.
What medical group is Dr. Angela A. Chiang part of?
Dr. Chiang is linked to ApolloMed Hospitalists.
Does Dr. Angela A. Chiang accept Medicare?
Yes. CMS data shows Dr. Chiang billed Medicare for 1,819 services in 2024, and Dr. Chiang accepts Medicare assignment.
What is Dr. Angela A. Chiang's MIPS score?
Dr. Chiang's MIPS final score for performance year 2024 is 100 out of 100, reported individually.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Angela A. Chiang see?
CMS counts 441 Medicare patients who saw Dr. Chiang in 2024, with an average age of 81.
Is Dr. Angela A. Chiang board certified?
Yes. Dr. Chiang is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Angela A. Chiang bill to Medicare?
In 2024, Dr. Chiang's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Angela A. Chiang go to medical school?
Dr. Chiang graduated from Ross University School of Medicine in 2013.
What drugs does Dr. Angela A. Chiang prescribe most?
In 2023 Medicare Part D data, Dr. Chiang's most prescribed drugs by claims were Levofloxacin and Ceftazidime.
Has Dr. Angela A. Chiang received payments from drug or device companies?
CMS Open Payments shows $2,298 in general payments to Dr. Chiang from 6 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Angela A. Chiang been practicing?
Dr. Chiang graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Angela A. Chiang accept?
Dr. Chiang is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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