J Am Geriatr Soc
Ambulatory Care FacilitiesContinuity of Patient CareCurriculum
Dr. Christine Wendy Chang, MD
NPI1467441170PAC ID8123918687
- Medicare services, 2024
- 607
- Medicare patients, 2024
- 224
- Part D claims, 2024
- 5,090
- Publications
- 2
- Hospital affiliations
- 3
- Practice address
- 5 Neponset Street, Worcester, MA 01606
- Practice phone
- Call (508) 853-2716
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reliant Medical Group - Worcester - Neponset Street
Mammography / Breast Imaging Center · Worcester, Massachusetts
Find Dr. Chang's professional email, personal email and mobile number
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Dr. Christine Wendy Chang is an internist in Worcester, Massachusetts
Dr. Chang practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
Dr. Chang's NPI, 1467441170, was assigned on October 14, 2005. Dr. Chang graduated from University of Texas Medical School at San Antonio in 1999. Dr. Chang holds Massachusetts license 210590.
NPI and contact details
- NPI
- 1467441170NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123918687
- NPI enumeration date
- October 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 853-2716
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christine Wendy Chang practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts
Dr. Chang's primary practice is Reliant Medical Group - Worcester - Neponset Street, at 5 Neponset Street, Worcester, MA 01606. The practice phone is (508) 853-2716.
- Reliant Medical Group - Worcester - Neponset Street5 Neponset Street, Worcester, MA 01606Phone(508) 853-2716
Source: Dmand AI Affiliation Data
Dr. Christine Wendy Chang is affiliated with 8 sites of care and 2 medical groups
Dr. Chang's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. Dr. Chang is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is Reliant Medical Group. Dmand AI also links Dr. Chang to 2 more hospitals, 2 home health agencies, 1 group practice or clinic, 1 hospice and 1 medical group, each named with a free account. Dr. Chang's employer is on file too: a breast imaging center.
Reliant Medical Group - Worcester - Neponset StreetPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christine Wendy Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reliant Medical Group - Worcester - Neponset Street | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christine Wendy Chang is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
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. Christine Wendy Chang billed Medicare for 607 services in 2024
CMS data shows 607 Medicare services from Dr. Chang across 11 procedure codes in 2024, for 224 Medicare patients. Medicare paid $56,637 for them. Every service was in an office.
Medicare services, 2024607
Medicare patients224
Paid by Medicare$56,637
Procedure codes11
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 02024: 260
- Tests and treatments
- 2023: 02024: 186
- Other services
- 2023: 02024: 161
- Lab and pathology
- 2023: 1092024: 0100%
Dr. Chang compared with the Massachusetts median for internists, 2024
- Dr. Chang
- Massachusetts median
- Medicare services
- 607vs 43141% above
- Medicare patients
- 224vs 19415% above
- Part D claims
- 4,312vs 40210.7 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Chang'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christine Wendy Chang treated 224 Medicare patients in 2024, average age 77
CMS counts 224 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 108 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 78, with 63% women.
Medicare patients, 2024224
Average age77
Average risk score1.29
Also on Medicaid12%
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women11551%
- Men10949%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis44%
- Ischemic heart disease29%
- Diabetes26%
- Chronic kidney disease24%
- Mood disorders23%
- Anxiety21%
Share of Medicare patients with each condition. A patient can have several.
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%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christine Wendy Chang wrote 5,090 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 5,090 Medicare Part D claims for 763 patients. 90% of them were for generic drugs. CMS names the drug for 4,312 of them, across 86 drugs with 11 or more claims each, at $333,522 in total drug cost. In 2023, CMS named 2,690 claims across 70 drugs.
Part D claims, 20245,090
Drugs named by CMS86
Total drug cost$333,522
Part D patients763
Dr. Chang's Part D claims by kind of drug, 2024
- Generic4,565 claims90%
- Brand-name507 claims10%
- Other18 claims0%
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.
Drug classes CMS tracks in Dr. Chang's Part D claims, 2024
- Opioids3%164 of 5,090 claims
- Antibiotics3%130 of 5,090 claims
- Antipsychotics, patients 65 and over0%19 of 5,090 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,6902024: 4,31260%
Drugs named by CMS: 86 in 2024, 70 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
Dr. Christine Wendy Chang offers telehealth to Medicare patients
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chang as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Christine Wendy Chang has 2 publications on record
Dmand AI links 2 papers to Dr. Chang, published from 2015 to 2017. The most frequent topics are Geriatrics and Internship and Residency. Dr. Chang's most frequent co-authors are Eileen H. Callahan, MD, Christine Chang, MD and Linda V. Decherrie, MD.
Papers2
Years published2015 to 2017
Topics Dr. Chang writes about most
- Geriatrics
- Internship and Residency
Dr. Chang's most frequent co-authors
- Eileen H. Callahan, MD2 shared papers
- Christine Chang, MD1 shared paper
- Linda V. Decherrie, MD1 shared paper
Recent publications by Dr. Chang
Gerontol Geriatr Educ
Accidental FallsAmbulatory CareClinical Competence
See who Dr. Chang researches with
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Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christine Wendy Chang received $1,767 in industry payments from 2016 to 2020
CMS Open Payments shows 84 general payments to Dr. Chang from 14 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 96% of the total. Janssen Pharmaceuticals, Inc paid the most, $476.
General payments to Dr. Chang by program year, 2016 to 2020
General payments to Dr. Chang by kind, 2016 to 2020
$1.8Kin total
- Food and beverage$1,70496%
- Education$624%
Companies that paid Dr. Chang the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christine Wendy Chang graduated from University of Texas Medical School at San Antonio
Dr. Chang graduated from University of Texas Medical School at San Antonio in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christine Wendy 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 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) |
| 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 |
| 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. Christine Wendy 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. Christine Wendy Chang's NPI number?
Dr. Christine Wendy Chang's NPI number is 1467441170. It was assigned on October 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Christine Wendy Chang?
Dr. Christine Wendy Chang is an internist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Christine Wendy Chang practice?
Dr. Chang practices at 5 Neponset Street, Worcester, MA 01606. Dr. Chang's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. Dmand AI also links Dr. Chang to 2 hospitals, 2 home health agencies, 1 group practice or clinic, 1 hospice and 1 medical group.
What is Dr. Christine Wendy Chang's office phone number?
The practice phone on file for Dr. Chang is (508) 853-2716.
What is Dr. Christine Wendy Chang's medical license number?
Dr. Chang holds Massachusetts license 210590.
Which hospitals is Dr. Christine Wendy Chang affiliated with?
Dr. Chang is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Chang to 2 more hospitals.
What medical group is Dr. Christine Wendy Chang part of?
Dr. Chang is linked to Reliant Medical Group. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Christine Wendy Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 607 services in 2024, and Dr. Chang accepts Medicare assignment.
Does Dr. Christine Wendy Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
How many Medicare patients does Dr. Christine Wendy Chang see?
CMS counts 224 Medicare patients who saw Dr. Chang in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. Christine Wendy Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and vaccine or vaccine administration (90480).
Where did Dr. Christine Wendy Chang go to medical school?
Dr. Chang graduated from University of Texas Medical School at San Antonio in 1999.
What drugs does Dr. Christine Wendy Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Atorvastatin Calcium, Valsartan and Lisinopril.
Has Dr. Christine Wendy Chang received payments from drug or device companies?
CMS Open Payments shows $1,767 in general payments to Dr. Chang from 14 companies from 2016 to 2020. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Christine Wendy Chang been practicing?
Dr. Chang graduated from medical school in 1999, 27 years ago.
Does Dr. Christine Wendy Chang do research?
Dmand AI links 2 publications to Dr. Chang, published from 2015 to 2017.
Who does Dr. Christine Wendy Chang publish with?
Dr. Chang's most frequent co-authors are Eileen H. Callahan, MD (2 shared papers), Christine Chang, MD (1 shared paper) and Linda V. Decherrie, MD (1 shared paper).
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