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Dr. Emiley Chang, MD
NPI1831328558
- Medicare services, 2017
- 107
- Part D claims, 2024
- 517
- Publications
- 6
- Hospital affiliations
- 1
- Industry payments
- $99
- Practice address
- 1000 W Carson St, Torrance, CA 90509
- Practice phone
- Call (310) 222-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chang's professional email, personal email and mobile number
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Dr. Emiley Chang is an internist in Torrance, California
Dr. Chang practices at Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
Dr. Chang's NPI, 1831328558, was assigned on July 2, 2009. Dr. Chang graduated from Stanford University School Of Medicine in 2009. Dr. Chang holds California license A113678.
NPI and contact details
- NPI
- 1831328558NPI Registry (opens in a new tab)
- NPI enumeration date
- July 2, 2009
- NPI status
- Active
- Practice phone
- (310) 222-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Emiley Chang practices at Harbor-UCLA Medical Center in Torrance, California
Dr. Chang's primary practice is Harbor-UCLA Medical Center, at 1000 W Carson St, Torrance, CA 90509 in Los Angeles County. The practice phone is (310) 222-2345.
- Harbor-UCLA Medical Center1000 W Carson St, Torrance, CA 90509 · Los Angeles CountyPhone(310) 222-2345
Source: Dmand AI Affiliation Data
Dr. Emiley Chang is affiliated with 1 site of care
Dr. Chang's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles. Dr. Chang's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Emiley Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harbor-UCLA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Emiley Chang is one of 16,751 internists in California
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang is board certified in geriatric medicine by the American Board of Internal Medicine. Dr. Chang is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists gastrointestinal inflammation, sepsis and syncope & collapse among the conditions Dr. Chang treats.
Internists near Dr. Chang
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. Emiley Chang billed Medicare for 107 services in 2017
CMS data shows 107 Medicare services from Dr. Chang across 2 procedure codes in 2017. Medicare paid $6,082 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2017107
Paid by Medicare$6,082
Procedure codes2
Dr. Chang's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 2342017: 10754%
Dr. Chang compared with the California median for internists, 2017
- Dr. Chang
- California median
- Medicare services
- 107vs 36170% below
- Part D claims
- 222vs 42147% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2017
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. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Emiley Chang's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 78, with 63% women.
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women63%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Emiley Chang wrote 517 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 517 Medicare Part D claims for 63 patients. 85% of them were for generic drugs. CMS names the drug for 222 of them, across 10 drugs with 11 or more claims each, at $16,114 in total drug cost. In 2023, CMS named 324 claims across 16 drugs.
Part D claims, 2024517
Drugs named by CMS10
Total drug cost$16,114
Part D patients63
Dr. Chang's Part D claims by kind of drug, 2024
- Generic441 claims85%
- Brand-name59 claims11%
- Other17 claims3%
Dr. Chang'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3242024: 22231%
Drugs named by CMS: 10 in 2024, 16 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
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Dr. Emiley Chang has 6 publications on record
Dmand AI links 6 papers to Dr. Chang, published from 2015 to 2023. Dr. Chang's most frequent co-authors are Mark Hanson, MD and Catherine Anne Sarkisian, MD.
Papers6
Years published2015 to 2023
Dr. Chang's papers by year, 2015 to 2023
Dr. Chang's most frequent co-authors
Recent publications by Dr. Chang
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Emiley Chang received $99 in industry payments in 2016
CMS Open Payments shows 4 general payments to Dr. Chang from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $50.
Companies that paid Dr. Chang the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Emiley Chang graduated from Stanford University School Of Medicine
Dr. Chang graduated from Stanford University School Of Medicine in 2009.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Emiley Chang accepts plans from 4 insurance carriers
Dr. Chang is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- LA Care
Plan types Dr. Chang accepts, by number of carriers
- Medicare3
- PPO3
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Emiley Chang'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 Data |
| 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) |
| 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. Emiley Chang
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. Emiley Chang's NPI number?
Dr. Emiley Chang's NPI number is 1831328558. It was assigned on July 2, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Emiley Chang?
Dr. Emiley Chang is an internist in Torrance, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Emiley Chang practice?
Dr. Chang practices at 1000 W Carson St, Torrance, CA 90509. Dr. Chang's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
What is Dr. Emiley Chang's office phone number?
The practice phone on file for Dr. Chang is (310) 222-2345.
What is Dr. Emiley Chang's medical license number?
Dr. Chang holds California license A113678.
Which hospitals is Dr. Emiley Chang affiliated with?
Dr. Chang practices at Harbor-UCLA Medical Center in Torrance, California.
Does Dr. Emiley Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 107 services in 2017.
Is Dr. Emiley Chang board certified?
Yes. Dr. Chang is board certified in geriatric medicine by the American Board of Internal Medicine.
What services does Dr. Emiley Chang bill to Medicare?
In 2017, Dr. Chang's most billed Medicare services were office visit, established patient (99214) and hospital inpatient care (99232).
Where did Dr. Emiley Chang go to medical school?
Dr. Chang graduated from Stanford University School Of Medicine in 2009.
Show 6 more questionsShow fewer questions
What drugs does Dr. Emiley Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Emiley Chang received payments from drug or device companies?
CMS Open Payments shows $99 in general payments to Dr. Chang from 2 companies from 2016 to 2016. The largest total came from Amgen Inc.
How long has Dr. Emiley Chang been practicing?
Dr. Chang graduated from medical school in 2009, 17 years ago.
Does Dr. Emiley Chang do research?
Dmand AI links 6 publications to Dr. Chang, published from 2015 to 2023.
Who does Dr. Emiley Chang publish with?
Dr. Chang's most frequent co-authors are Mark Hanson, MD (1 shared paper) and Catherine Anne Sarkisian, MD (1 shared paper).
What insurance does Dr. Emiley Chang accept?
Dr. Chang is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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