Cold TemperatureCross-Over StudiesEnergy Intake
Dr. Douglas Chin-Lu Chang, MD
NPI1093914822PAC ID7315031846
- Medicare services, 2020
- 48
- Publications
- 36
- Clinical trials
- 1
- Hospital affiliations
- 1
- Industry payments
- $275
- Practice address
- 4212 North 16th Street, Phoenix, AZ 85016
- Practice phone
- Call (602) 263-1200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Douglas Chin-Lu Chang is an internist in Phoenix, Arizona
Dr. Chang practices at Phoenix Indian Medical Center in Phoenix, Arizona, part of U.S. Department of Health and Human Services.
Dr. Chang's NPI, 1093914822, was assigned on July 12, 2007. Dr. Chang graduated from Rutgers New Jersey Medical School in 2002. Dr. Chang holds New York license 233253-1.
NPI and contact details
- NPI
- 1093914822NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315031846
- NPI enumeration date
- July 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (602) 263-1200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas Chin-Lu Chang practices at Phoenix Indian Medical Center in Phoenix, Arizona
Dr. Chang's primary practice is Phoenix Indian Medical Center, at 4212 North 16th Street, Phoenix, AZ 85016 in Maricopa County. The practice phone is (602) 263-1200.
- Phoenix Indian Medical Center4212 North 16th Street, Phoenix, AZ 85016 · Maricopa CountyPhone(602) 263-1200
Source: Dmand AI Affiliation Data
Dr. Douglas Chin-Lu Chang is affiliated with 1 site of care and 1 medical group
Dr. Chang's primary practice is Phoenix Indian Medical Center in Phoenix, Arizona, part of U.S. Department of Health and Human Services. The medical group on file is Phoenix Indian Medical Center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas Chin-Lu 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 |
|---|---|
| Phoenix Indian Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Douglas Chin-Lu Chang is one of 2,420 internists in Arizona
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
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. Douglas Chin-Lu Chang billed Medicare for 48 services in 2020
CMS data shows 48 Medicare services from Dr. Chang across 2 procedure codes in 2020. Medicare paid $3,428 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202048
Paid by Medicare$3,428
Procedure codes2
Dr. Chang compared with the Arizona median for internists, 2020
- Dr. Chang
- Arizona median
- Medicare services
- 48vs 47690% below
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2020
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. Chang and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Chin-Lu Chang's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 46, with 50% 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 46
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
How Dr. Douglas Chin-Lu Chang takes part in Medicare
Dr. Chang 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
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Dr. Douglas Chin-Lu Chang has 36 publications on record
Dmand AI links 36 papers to Dr. Chang, published from 2015 to 2024. 2024 was the busiest year, with 10. The most frequent topics are Energy Metabolism, Energy Intake and Insulin. Dr. Chang has published most often in Obesity (Silver Spring). Dr. Chang's most frequent co-authors are Jonathan A. Krakoff, MD, William C. Knowler, MD and Brian Barrett, DO.
Papers36
Years published2015 to 2024
Dr. Chang's papers by year, 2015 to 2024
Topics Dr. Chang writes about most
- Energy Metabolism
- Energy Intake
- Insulin
- Diabetes Mellitus, Type 2
- Obesity
- Glucose Tolerance Test
- Blood Glucose
- Body Composition
Dr. Chang's most frequent co-authors
- Jonathan A. Krakoff, MD35 shared papers
- William C. Knowler, MD4 shared papers
- Brian Barrett, DO1 shared paper
Recent publications by Dr. Chang
AdipocytesAdipose Tissue, BrownEnergy Metabolism
Clin Transl Gastroenterol
Blood GlucoseGallstonesGlucose Clamp Technique
Behav Brain Res
Dorsolateral Prefrontal CortexEatingGhrelin
Nutr Diabetes
Blood GlucoseDiabetes Mellitus, Type 2Glucose Clamp Technique
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. Douglas Chin-Lu Chang has worked on 1 clinical trial
Dmand AI links Dr. Chang to 1 clinical trial. Conditions studied include Obesity and Overnutrition.
Conditions in Dr. Chang's trials
- Obesity
- Overnutrition
Investigators on the most trials with Dr. Chang
Recent clinical trials with Dr. Chang
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Douglas Chin-Lu Chang received $275 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Chang from 1 drug or device company in 2018. Education make up the largest share, 100% of the total. Tulsa Dental Products LLC paid the most, $275.
Companies that paid Dr. Chang the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas Chin-Lu Chang graduated from Rutgers New Jersey Medical School
Dr. Chang graduated from Rutgers New Jersey Medical School in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas Chin-Lu 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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| 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. Douglas Chin-Lu 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. Douglas Chin-Lu Chang's NPI number?
Dr. Douglas Chin-Lu Chang's NPI number is 1093914822. It was assigned on July 12, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Chin-Lu Chang?
Dr. Douglas Chin-Lu Chang is an internist in Phoenix, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Douglas Chin-Lu Chang practice?
Dr. Chang practices at 4212 North 16th Street, Phoenix, AZ 85016. Dr. Chang's primary practice is Phoenix Indian Medical Center in Phoenix, Arizona, part of U.S. Department of Health and Human Services.
What is Dr. Douglas Chin-Lu Chang's office phone number?
The practice phone on file for Dr. Chang is (602) 263-1200.
What is Dr. Douglas Chin-Lu Chang's medical license number?
Dr. Chang holds New York license 233253-1.
Which hospitals is Dr. Douglas Chin-Lu Chang affiliated with?
Dr. Chang practices at Phoenix Indian Medical Center in Phoenix, Arizona.
What medical group is Dr. Douglas Chin-Lu Chang part of?
Dr. Chang is linked to Phoenix Indian Medical Center.
Does Dr. Douglas Chin-Lu Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 48 services in 2020, and Dr. Chang accepts Medicare assignment.
What services does Dr. Douglas Chin-Lu Chang bill to Medicare?
In 2020, Dr. Chang's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99232).
Where did Dr. Douglas Chin-Lu Chang go to medical school?
Dr. Chang graduated from Rutgers New Jersey Medical School in 2002.
Show 4 more questionsShow fewer questions
Has Dr. Douglas Chin-Lu Chang received payments from drug or device companies?
CMS Open Payments shows $275 in general payments to Dr. Chang from 1 company from 2018 to 2018. The largest total came from Tulsa Dental Products LLC.
How long has Dr. Douglas Chin-Lu Chang been practicing?
Dr. Chang graduated from medical school in 2002, 24 years ago.
Does Dr. Douglas Chin-Lu Chang do research?
Dmand AI links 36 publications to Dr. Chang, published from 2015 to 2024. Dr. Chang has worked on 1 clinical trial.
Who does Dr. Douglas Chin-Lu Chang publish with?
Dr. Chang's most frequent co-authors are Jonathan A. Krakoff, MD (35 shared papers), William C. Knowler, MD (4 shared papers) and Brian Barrett, DO (1 shared paper).
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