Int J Biol Sci
B7-H1 AntigenImmunosuppression TherapyImmunotherapy
Dr. Alfred E. Chang, MD
NPI1104924372
- Medicare services, 2022
- 104
- Part D claims, 2024
- 18
- Publications
- 274
- Hospital affiliations
- 1
- Industry payments
- $898
- Practice address
- 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109
- Practice phone
- Call (734) 764-1505
- 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
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. Alfred E. Chang is a general surgeon in Lansing, Michigan
Dr. Chang practices at University Hospital in Ann Arbor, Michigan, part of University of Michigan.
Dr. Chang's NPI, 1104924372, was assigned on September 20, 2006. Dr. Chang graduated from Harvard Medical School in 1974. Dr. Chang's Michigan license number on file is 4301052374.
NPI and contact details
- NPI
- 1104924372NPI Registry (opens in a new tab)
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Practice phone
- (734) 764-1505
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alfred E. Chang practices in Ann Arbor and Lansing
Dr. Chang's primary practice is University Hospital, at 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109 in Washtenaw County. The practice phone is (734) 764-1505. The NPI Registry lists Dr. Chang's practice address as 1215 E Michigan Ave, Lansing, MI 48912.
- University HospitalPrimary1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109 · Washtenaw CountyPhone(734) 764-1505
- NPI Registry address1215 E Michigan Ave, Lansing, MI 48912 · Ingham CountyPhone(734) 936-4000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Alfred E. Chang is affiliated with 1 site of care and 1 medical group
Dr. Chang's primary practice is University Hospital in Ann Arbor, Michigan, part of University of Michigan. The medical group on file is University of Michigan Health.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alfred E. 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 |
|---|---|
| University Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Chang practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Michigan and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alfred E. Chang is one of 1,095 general surgeons in Michigan
Surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Chang's licenses on file in 3 states: Michigan, Pennsylvania and Maryland.
Specialties and state licenses
- Surgery, MichiganPrimary
- Pennsylvania license
- Maryland license
Clinical focus
Dmand AI lists mastectomy among the conditions Dr. Chang treats.
General surgeons near Dr. Chang
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
1,095general surgeons in Michigan41general surgeons in Lansing3general surgeons at University Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alfred E. Chang billed Medicare for 104 services in 2022
CMS data shows 104 Medicare services from Dr. Chang across 5 procedure codes in 2022. Medicare paid $20,103 for them.
Medicare services, 2022104
Paid by Medicare$20,103
Procedure codes5
Dr. Chang's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 612022: 5411%
- Surgery
- 2021: 552022: 509%
Where Dr. Chang's Medicare services took place, 2022
- In an office5048%
- In a facility5452%
Dr. Chang compared with the Michigan median for general surgeons, 2022
- Dr. Chang
- Michigan median
- Medicare services
- 104vs 12617% below
- Part D claims
- 17vs 3043% below
Medians across 1,046 general surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Chang'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. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other general surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alfred E. Chang's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 42, with 96% 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 42
Patient panel by sex, all payers
- Women96%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Alfred E. Chang wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 18 Medicare Part D claims. 89% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $39 in total drug cost. In 2016, CMS named 15 claims across 1 drug.
Part D claims, 202418
Drugs named by CMS1
Total drug cost$39
Dr. Chang's Part D claims by kind of drug, 2024
- Generic16 claims89%
- Brand-name and other2 claims11%
Dr. Chang's most prescribed drugs by claims, 2019
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, 2016 to 2019
- 2016
- 2019
- Claims for drugs CMS names
- 2016: 152019: 1713%
Drugs named by CMS: 1 in 2019, 1 in 2016.
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
For MedTech and pharma teams
Find general surgeons like Dr. Chang by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Alfred E. Chang has 274 publications on record
Dmand AI links 274 papers to Dr. Chang, published from 2005 to 2025. 2015 was the busiest year, with 11. The most frequent topics are Lymph Nodes, Mice, Inbred C57BL and Interleukin-2. Dr. Chang has published most often in Ann Surg Oncol. Dr. Chang's most frequent co-authors are Vernon K. Sondak, MD, Max S. Wicha, MD and Michael Scott Sabel, MD.
Papers274
Years published2005 to 2025
Dr. Chang's papers by year, 2015 to 2025
Topics Dr. Chang writes about most
- Lymph Nodes
- Mice, Inbred C57BL
- Interleukin-2
- Immunotherapy, Adoptive
- Melanoma
- T-Lymphocytes
- Lymphocyte Activation
- Breast Neoplasms
Dr. Chang's most frequent co-authors
- Vernon K. Sondak, MD22 shared papers
- Max S. Wicha, MD22 shared papers
- Michael Scott Sabel, MD14 shared papers
Recent publications by Dr. Chang
Pract Radiat Oncol
Breast NeoplasmsMastectomy, SegmentalRadiotherapy Planning, Computer-Assisted
J Control Release
Aldehyde DehydrogenaseCell Line, TumorImmunity
J Surg Oncol
Breast NeoplasmsMastectomyNeoplasms, Unknown Primary
Front Immunol
B-LymphocytesImmunotherapyLymphocyte Count
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alfred E. Chang received $898 in industry payments from 2018 to 2023
CMS Open Payments shows 2 general payments to Dr. Chang from 2 drug and device companies from 2018 to 2023. Device or supply loans make up the largest share, 86% of the total. Integra LifeSciences Corporation paid the most, $776.
General payments to Dr. Chang by program year, 2018 to 2023
General payments to Dr. Chang by kind, 2018 to 2023
$898in total
- Device or supply loans$77686%
- Food and beverage$12214%
Companies that paid Dr. Chang the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alfred E. Chang has 5 awards and honors on record
Dmand AI lists 5 awards for Dr. Chang, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Chang
- 2014
- America's Top Doctors
- 2013
- America's Top Doctors for Cancer
- CMS Stage 1 EHR
- 2001
- Redbook Magazine: Top Breast Cancer Doctors
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Alfred E. Chang graduated from Harvard Medical School
Dr. Chang graduated from Harvard Medical School in 1974. Dr. Chang is a member of ACS.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Alfred E. Chang accepts plans from 6 insurance carriers
Dr. Chang is in network with 6 carriers, including Priority Health, Molina and United Healthcare. HMO plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Priority Health
- Molina
- United Healthcare
- Humana
- McLaren Health Plan
- University of Michigan Health Plan
Plan types Dr. Chang accepts, by number of carriers
- HMO5
- Medicare4
- Medicaid2
- POS2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Alfred E. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| 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. Alfred E. 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. Alfred E. Chang's NPI number?
Dr. Alfred E. Chang's NPI number is 1104924372. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Alfred E. Chang?
Dr. Alfred E. Chang is a general surgeon in Lansing, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Alfred E. Chang practice?
Dr. Chang practices at 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109. Dr. Chang also practices at 1215 E Michigan Ave, Lansing, MI 48912. Dr. Chang's primary practice is University Hospital in Ann Arbor, Michigan, part of University of Michigan.
What is Dr. Alfred E. Chang's office phone number?
The practice phone on file for Dr. Chang is (734) 764-1505.
What is Dr. Alfred E. Chang's medical license number?
Dr. Chang's Michigan license number on file is 4301052374, one of the licenses on file in 3 states.
Which states has Dr. Alfred E. Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in Michigan (1987 to 2025), Pennsylvania (1979 to 1998) and Maryland (1977 to 1984).
Which hospitals is Dr. Alfred E. Chang affiliated with?
Dr. Chang practices at University Hospital in Ann Arbor, Michigan.
What medical group is Dr. Alfred E. Chang part of?
Dr. Chang is linked to University of Michigan Health.
Does Dr. Alfred E. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 104 services in 2022.
What services does Dr. Alfred E. Chang bill to Medicare?
In 2022, Dr. Chang's most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (19301) and office visit, new patient (99203).
Show 7 more questionsShow fewer questions
Where did Dr. Alfred E. Chang go to medical school?
Dr. Chang graduated from Harvard Medical School in 1974.
What drugs does Dr. Alfred E. Chang prescribe most?
In 2019 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Alfred E. Chang received payments from drug or device companies?
CMS Open Payments shows $898 in general payments to Dr. Chang from 2 companies from 2018 to 2023. The largest total came from Integra LifeSciences Corporation.
How long has Dr. Alfred E. Chang been practicing?
Dr. Chang graduated from medical school in 1974, 52 years ago.
Does Dr. Alfred E. Chang do research?
Dmand AI links 274 publications to Dr. Chang, published from 2005 to 2025.
Who does Dr. Alfred E. Chang publish with?
Dr. Chang's most frequent co-authors are Vernon K. Sondak, MD (22 shared papers), Max S. Wicha, MD (22 shared papers) and Michael Scott Sabel, MD (14 shared papers).
What insurance does Dr. Alfred E. Chang accept?
Dr. Chang is in network with 6 carriers, including Priority Health, Molina and United Healthcare. HMO plans come from the most carriers, 5. Check the plan with the practice before a visit.
Selling to surgery practices?
See general surgeons in Michigan 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