Dr. Richard J. Chang, MD
- Medicare services, 2024
- 325
- Medicare patients, 2024
- 227
- Part D claims, 2024
- 75
- Hospital affiliations
- 2
- Industry payments
- $1,850
- Practice address
- 1035-116Th Ave NE, Bellevue, WA 98004
- Practice phone
- Call (425) 688-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Richard J. Chang is an emergency medicine physician in Bellevue, Washington
Dr. Chang practices at Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System.
Dr. Chang's NPI, 1336301589, was assigned on June 30, 2008. Dr. Chang graduated from New York University School of Medicine in 2008. Dr. Chang holds Washington license MD 60210346.
- NPI
- 1336301589NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143491308
- NPI enumeration date
- June 30, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (425) 688-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard J. Chang practices at Overlake Medical Center in Bellevue, Washington
Dr. Chang's primary practice is Overlake Medical Center, at 1035-116Th Ave NE, Bellevue, WA 98004 in King County. The practice phone is (425) 688-5000.
- Overlake Medical Center1035-116Th Ave NE, Bellevue, WA 98004 · King CountyPhone(425) 688-5000
Source: Dmand AI Affiliation Data
Dr. Richard J. Chang is affiliated with 4 sites of care and 3 medical groups
Dr. Chang's primary practice is Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System. Dr. Chang is also affiliated with Snoqualmie Valley Health. The medical group on file is North Sound Emergency Medicine. Dmand AI also links Dr. Chang to 2 more group practices and clinics and 2 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. Richard J. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Overlake Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard J. Chang is one of 1,408 emergency medicine physicians in Washington
Emergency medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chang is licensed in Washington.
Specialties and state licenses
- Emergency medicine, WashingtonPrimary
Emergency medicine physicians near Dr. Chang
Counts of emergency medicine physicians 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. Richard J. Chang billed Medicare for 325 services in 2024
CMS data shows 325 Medicare services from Dr. Chang across 4 procedure codes in 2024, for 227 Medicare patients. Medicare paid $29,768 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: 2642024: 22017%
- Tests and treatments
- 2023: 892024: 10518%
Dr. Chang compared with the Washington median for emergency medicine physicians, 2024
- Dr. Chang
- Washington median
- Medicare services
- 325vs 26821% above
- Medicare patients
- 227vs 223Close to median
- Part D claims
- 45vs 6126% below
Medians across 1,440 emergency medicine physicians 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other emergency medicine physicians in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard J. Chang treated 227 Medicare patients in 2024, average age 81
CMS counts 227 Medicare patients who saw Dr. Chang in 2024. The largest group is 85 and over, with 92 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.69, 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 51, with 54% women.
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
- Women12656%
- Men10144%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis52%
- Atrial fibrillation39%
- Ischemic heart disease35%
- Chronic kidney disease33%
- Heart failure33%
- Mood disorders33%
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 51
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard J. Chang wrote 75 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 75 Medicare Part D claims for 50 patients. 81% of them were for generic drugs. CMS names the drug for 45 of them, across 3 drugs with 11 or more claims each, at $327 in total drug cost. In 2022, CMS named 25 claims across 2 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic61 claims81%
- Brand-name and other14 claims19%
Dr. Chang's most prescribed drugs by claims, 2023
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
- Opioids19%14 of 75 claims
- Antibiotics19%14 of 75 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 252023: 4580%
Drugs named by CMS: 3 in 2023, 2 in 2022.
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
How Dr. Richard J. 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)
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Dr. Richard J. Chang received $1,850 in industry payments from 2016 to 2020
CMS Open Payments shows 3 general payments to Dr. Chang from 1 drug or device company from 2016 to 2020. Consulting fees make up the largest share, 59% of the total. FUJIFILM SonoSite, Inc. paid the most, $1,850.
General payments to Dr. Chang by program year, 2016 to 2020
General payments to Dr. Chang by kind, 2016 to 2020
- Consulting fees$1,10059%
- Gifts$75041%
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. Richard J. Chang graduated from New York University School of Medicine
Dr. Chang graduated from New York University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard J. 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) |
| 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. Richard J. 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. Richard J. Chang's NPI number?
Dr. Richard J. Chang's NPI number is 1336301589. It was assigned on June 30, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard J. Chang?
Dr. Richard J. Chang is an emergency medicine physician in Bellevue, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Richard J. Chang practice?
Dr. Chang practices at 1035-116Th Ave NE, Bellevue, WA 98004. Dr. Chang's primary practice is Overlake Medical Center in Bellevue, Washington, part of MultiCare Health System. Dmand AI also links Dr. Chang to 2 group practices and clinics and 2 medical groups.
What is Dr. Richard J. Chang's office phone number?
The practice phone on file for Dr. Chang is (425) 688-5000.
What is Dr. Richard J. Chang's medical license number?
Dr. Chang holds Washington license MD 60210346.
Which hospitals is Dr. Richard J. Chang affiliated with?
Dr. Chang practices at Overlake Medical Center in Bellevue, Washington. Dr. Chang is also affiliated with Snoqualmie Valley Health.
What medical group is Dr. Richard J. Chang part of?
Dr. Chang is linked to North Sound Emergency Medicine. Dmand AI links Dr. Chang to 2 more medical groups.
Does Dr. Richard J. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 325 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Richard J. Chang see?
CMS counts 227 Medicare patients who saw Dr. Chang in 2024, with an average age of 81.
What services does Dr. Richard J. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Show 4 more questionsShow fewer questions
Where did Dr. Richard J. Chang go to medical school?
Dr. Chang graduated from New York University School of Medicine in 2008.
What drugs does Dr. Richard J. Chang prescribe most?
In 2023 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Ondansetron ODT.
Has Dr. Richard J. Chang received payments from drug or device companies?
CMS Open Payments shows $1,850 in general payments to Dr. Chang from 1 company from 2016 to 2020. The largest total came from FUJIFILM SonoSite, Inc.
How long has Dr. Richard J. Chang been practicing?
Dr. Chang graduated from medical school in 2008, 18 years ago.
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