Dig Dis Sci
Carcinoma, HepatocellularLiver CirrhosisLiver Neoplasms
Dr. Christopher Han Sheng Chang, MD, PhD
NPI1417981796
- Medicare services, 2018
- 12
- Publications
- 6
- Hospital affiliations
- 1
- Industry payments
- $77,936
- Medical group
- 1
- Practice address
- 1501 San Pedro Drive SE, Albuquerque, NM 87108
- Practice phone
- Call (505) 256-2889
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Christopher Han Sheng Chang is a gastroenterologist in Albuquerque, New Mexico
Dr. Chang practices at Raymond G. Murphy Department of Veterans Affairs Medical Center in Albuquerque, New Mexico, part of Veterans Health Administration.
Dr. Chang's NPI, 1417981796, was assigned on July 10, 2006. Dr. Chang holds New Mexico license MD2015-0819.
NPI and contact details
- NPI
- 1417981796NPI Registry (opens in a new tab)
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Practice phone
- (505) 256-2889
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Christopher Han Sheng Chang practices at Raymond G. Murphy Department of Veterans Affairs Medical Center in Albuquerque, New Mexico
Dr. Chang's primary practice is Raymond G. Murphy Department of Veterans Affairs Medical Center, at 1501 San Pedro Drive SE, Albuquerque, NM 87108 in Bernalillo County. The practice phone is (505) 256-2889.
- Raymond G. Murphy Department of Veterans Affairs Medical Center1501 San Pedro Drive SE, Albuquerque, NM 87108 · Bernalillo CountyPhone(505) 256-2889
Source: Dmand AI Affiliation Data
Dr. Christopher Han Sheng Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Raymond G. Murphy Department of Veterans Affairs Medical Center in Albuquerque, New Mexico, part of Veterans Health Administration. The medical group on file is UNM Medical Group, Inc. Dmand AI also links Dr. Chang to 1 more group practice or clinic, named with a free account. Dr. Chang's employer is on file too: a hospital.
UNM Medical Group, Inc.1 group practice or clinicName with a free accountEmployer: hospitalName with a free account
See all 3 affiliations for Dr. ChangSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher Han Sheng Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Raymond G. Murphy Department of Veterans Affairs Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Christopher Han Sheng Chang is one of 99 gastroenterologists in New Mexico
Gastroenterology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Chang's licenses on file in 2 states: New Mexico and California.
Specialties and state licenses
- Gastroenterology, New MexicoPrimary
- California license
Gastroenterologists near Dr. Chang
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
99gastroenterologists in New Mexico58gastroenterologists in Albuquerque6gastroenterologists at Raymond G. Murphy Department of Veterans Affairs Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Christopher Han Sheng Chang billed Medicare for 12 services in 2018
CMS data shows 12 Medicare services from Dr. Chang across 1 procedure code in 2018. Medicare paid $968 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 201812
Paid by Medicare$968
Procedure codes1
Dr. Chang compared with the New Mexico median for gastroenterologists, 2018
- Dr. Chang
- New Mexico median
- Medicare services
- 12vs 30696% below
Medians across 89 gastroenterologists in New Mexico with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2018
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 gastroenterologists in New Mexico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Han Sheng Chang's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 68, with 89% 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 68
Patient panel by sex, all payers
- Women89%
- Men11%
Source: Dmand AI Patient Panel Data
For MedTech and pharma teams
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Dr. Christopher Han Sheng Chang has 6 publications on record
Dmand AI links 6 papers to Dr. Chang, published from 2015 to 2021. 2016 was the busiest year, with 2. The most frequent topics are Constipation and Irritable Bowel Syndrome. Dr. Chang has published most often in Am J Gastroenterol. Dr. Chang's most frequent co-authors are Christopher Chang, Lucinda A. Harris, MD and Darren Michael Brenner, MD.
Papers6
Years published2015 to 2021
Dr. Chang's papers by year, 2015 to 2021
Topics Dr. Chang writes about most
- Constipation
- Irritable Bowel Syndrome
Dr. Chang's most frequent co-authors
- Christopher Chang6 shared papers
- Lucinda A. Harris, MD2 shared papers
- Darren Michael Brenner, MD1 shared paper
Recent publications by Dr. Chang
Best Pract Res Clin Gastroenterol
DietDysbiosisGastrointestinal Diseases
Gastrointest Endosc
Colonic NeoplasmsColonoscopyEar Neoplasms
Antineoplastic AgentsBiopsyCarcinoma, Small Cell
Abdominal PainConstipationFlatulence
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 gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christopher Han Sheng Chang received $77,936 in industry payments from 2016 to 2025
CMS Open Payments shows 306 general payments to Dr. Chang from 35 drug and device companies from 2016 to 2025. Education speaker fees make up the largest share, 32% of the total. Bausch Health Americas, Inc. paid the most, $41,846.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
$77.9Kin total
- Education speaker fees$25,20032%
- Consulting fees$24,80032%
- Food and beverage$13,38417%
- Speaker and faculty fees$11,25014%
- Other$3,3024%
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christopher Han Sheng 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 |
| 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) |
| 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. Christopher Han Sheng 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. Christopher Han Sheng Chang's NPI number?
Dr. Christopher Han Sheng Chang's NPI number is 1417981796. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Han Sheng Chang?
Dr. Christopher Han Sheng Chang is a gastroenterologist in Albuquerque, New Mexico. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Christopher Han Sheng Chang practice?
Dr. Chang practices at 1501 San Pedro Drive SE, Albuquerque, NM 87108. Dr. Chang's primary practice is Raymond G. Murphy Department of Veterans Affairs Medical Center in Albuquerque, New Mexico, part of Veterans Health Administration. Dmand AI also links Dr. Chang to 1 group practice or clinic.
What is Dr. Christopher Han Sheng Chang's office phone number?
The practice phone on file for Dr. Chang is (505) 256-2889.
What is Dr. Christopher Han Sheng Chang's medical license number?
Dr. Chang holds New Mexico license MD2015-0819, one of the licenses on file in 2 states.
Which states has Dr. Christopher Han Sheng Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in New Mexico and California.
Which hospitals is Dr. Christopher Han Sheng Chang affiliated with?
Dr. Chang practices at Raymond G. Murphy Department of Veterans Affairs Medical Center in Albuquerque, New Mexico.
What medical group is Dr. Christopher Han Sheng Chang part of?
Dr. Chang is linked to UNM Medical Group, Inc.
Does Dr. Christopher Han Sheng Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 12 services in 2018.
What services does Dr. Christopher Han Sheng Chang bill to Medicare?
In 2018, Dr. Chang's most billed Medicare services were hospital inpatient care (99221).
Show 4 more questionsShow fewer questions
Has Dr. Christopher Han Sheng Chang received payments from drug or device companies?
CMS Open Payments shows $77,936 in general payments to Dr. Chang from 35 companies from 2016 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Dr. Christopher Han Sheng Chang been practicing?
Dr. Chang's NPI was assigned in 2006.
Does Dr. Christopher Han Sheng Chang do research?
Dmand AI links 6 publications to Dr. Chang, published from 2015 to 2021.
Who does Dr. Christopher Han Sheng Chang publish with?
Dr. Chang's most frequent co-authors are Christopher Chang (6 shared papers), Lucinda A. Harris, MD (2 shared papers) and Darren Michael Brenner, MD (1 shared paper).
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