Dr. Eric Chien-Yeh Chang, MD
- Medicare services, 2024
- 187
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 255
- MIPS score, 2024
- 95
- Hospital affiliations
- 6
- Practice address
- 2211 Ne 139th Street, Vancouver, WA 98686
- Practice phone
- Call (360) 487-1000
- 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. Eric Chien-Yeh Chang is an infectious disease specialist in Vancouver, Washington
Dr. Chang practices at Legacy Salmon Creek Medical Center in Vancouver, Washington, part of Legacy Health.
Dr. Chang's NPI, 1720290190, was assigned on May 5, 2007. Dr. Chang graduated from University of Rochester School of Medicine and Dentistry in 2002. Dr. Chang holds Oregon license MD26818.
- NPI
- 1720290190NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224125232
- NPI enumeration date
- May 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (360) 487-1000
- 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. Eric Chien-Yeh Chang practices at Legacy Salmon Creek Medical Center in Vancouver, Washington
Dr. Chang's primary practice is Legacy Salmon Creek Medical Center, at 2211 Ne 139th Street, Vancouver, WA 98686 in Clark County. The practice phone is (360) 487-1000.
- Legacy Salmon Creek Medical Center2211 Ne 139th Street, Vancouver, WA 98686 · Clark CountyPhone(360) 487-1000
Source: Dmand AI Affiliation Data
Dr. Eric Chien-Yeh Chang is affiliated with 6 sites of care and 7 medical groups
Dr. Chang's primary practice is Legacy Salmon Creek Medical Center in Vancouver, Washington, part of Legacy Health. Dr. Chang is also affiliated with Providence St. Vincent Medical Center. The medical group on file is Providence Medical Group, Oregon. Dmand AI also links Dr. Chang to 4 more hospitals and 6 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eric Chien-Yeh Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Legacy Salmon Creek Medical Center | Available with a free account |
| +5 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Legacy Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Eric Chien-Yeh Chang is one of 218 infectious disease specialists in Washington
Infectious disease is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Chang is licensed in Oregon.
Specialties and state licenses
- Infectious disease, OregonPrimary
Infectious disease specialists near Dr. Chang
Counts of infectious disease specialists 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. Eric Chien-Yeh Chang billed Medicare for 187 services in 2024
CMS data shows 187 Medicare services from Dr. Chang across 4 procedure codes in 2024, for 94 Medicare patients. Medicare paid $15,586 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3292024: 18743%
Dr. Chang compared with the Washington median for infectious disease specialists, 2024
- Dr. Chang
- Washington median
- Medicare services
- 187vs 2017% below
- Medicare patients
- 94vs 995% below
- Part D claims
- 124vs 17830% below
Medians across 213 infectious disease specialists in Washington 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.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other infectious disease specialists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric Chien-Yeh Chang treated 94 Medicare patients in 2024, average age 70
CMS counts 94 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 65, with 43% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women3941%
- Men5559%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Chronic kidney disease48%
- Diabetes48%
- Mood disorders44%
- Depression41%
- Anxiety39%
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 65
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric Chien-Yeh Chang wrote 255 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 255 Medicare Part D claims for 41 patients. 72% of them were for generic drugs. CMS names the drug for 124 of them, across 7 drugs with 11 or more claims each, at $82,192 in total drug cost. In 2023, CMS named 294 claims across 11 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic183 claims72%
- Brand-name72 claims28%
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
- Antibiotics50%128 of 255 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: 2942024: 12458%
Drugs named by CMS: 7 in 2024, 11 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. Eric Chien-Yeh Chang scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Chang for performance year 2024, reported through an alternative payment model (APM). 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
Dr. Chang's MIPS scores, performance year 2024
- 95of 100Final score
- 77.2of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Eric Chien-Yeh Chang received $377 in industry payments from 2016 to 2018
CMS Open Payments shows 5 general payments to Dr. Chang from 3 drug and device companies from 2016 to 2018. Travel and lodging make up the largest share, 62% of the total. Abbott Laboratories paid the most, $343.
General payments to Dr. Chang by program year, 2016 to 2018
General payments to Dr. Chang by kind, 2016 to 2018
- Travel and lodging$23262%
- Food and beverage$14438%
Companies that paid Dr. Chang the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eric Chien-Yeh Chang graduated from University of Rochester School of Medicine and Dentistry
Dr. Chang graduated from University of Rochester School of Medicine and Dentistry in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric Chien-Yeh 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (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. Eric Chien-Yeh 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. Eric Chien-Yeh Chang's NPI number?
Dr. Eric Chien-Yeh Chang's NPI number is 1720290190. It was assigned on May 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric Chien-Yeh Chang?
Dr. Eric Chien-Yeh Chang is an infectious disease specialist in Vancouver, Washington. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Eric Chien-Yeh Chang practice?
Dr. Chang practices at 2211 Ne 139th Street, Vancouver, WA 98686. Dr. Chang's primary practice is Legacy Salmon Creek Medical Center in Vancouver, Washington, part of Legacy Health. Dmand AI also links Dr. Chang to 4 hospitals and 6 medical groups.
What is Dr. Eric Chien-Yeh Chang's office phone number?
The practice phone on file for Dr. Chang is (360) 487-1000.
What is Dr. Eric Chien-Yeh Chang's medical license number?
Dr. Chang holds Oregon license MD26818.
Which hospitals is Dr. Eric Chien-Yeh Chang affiliated with?
Dr. Chang practices at Legacy Salmon Creek Medical Center in Vancouver, Washington. Dr. Chang is also affiliated with Providence St. Vincent Medical Center. Dmand AI links Dr. Chang to 4 more hospitals.
What medical group is Dr. Eric Chien-Yeh Chang part of?
Dr. Chang is linked to Providence Medical Group, Oregon. Dmand AI links Dr. Chang to 6 more medical groups.
Does Dr. Eric Chien-Yeh Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 187 services in 2024, and Dr. Chang accepts Medicare assignment.
Does Dr. Eric Chien-Yeh Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
What is Dr. Eric Chien-Yeh Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Eric Chien-Yeh Chang see?
CMS counts 94 Medicare patients who saw Dr. Chang in 2024, with an average age of 70.
What services does Dr. Eric Chien-Yeh Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99233).
Where did Dr. Eric Chien-Yeh Chang go to medical school?
Dr. Chang graduated from University of Rochester School of Medicine and Dentistry in 2002.
What drugs does Dr. Eric Chien-Yeh Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Ceftriaxone, Cefazolin Sodium and Triumeq.
Has Dr. Eric Chien-Yeh Chang received payments from drug or device companies?
CMS Open Payments shows $377 in general payments to Dr. Chang from 3 companies from 2016 to 2018. The largest total came from Abbott Laboratories.
How long has Dr. Eric Chien-Yeh Chang been practicing?
Dr. Chang graduated from medical school in 2002, 24 years ago.
Selling to infectious disease practices?
See infectious disease specialists in Washington 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