Dr. Jonathan L. Chang, MD
- Medicare services, 2024
- 568
- Medicare patients, 2024
- 234
- Part D claims, 2024
- 425
- Hospital affiliations
- 2
- Industry payments
- $116
- Practice address
- 401 15th Avenue SE, Puyallup, WA 98372
- Practice phone
- Call (253) 697-2102
- 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. Jonathan L. Chang is a hospitalist in Puyallup, Washington
Dr. Chang practices at MultiCare Good Samaritan Hospital in Puyallup, Washington, part of MultiCare Health System.
Dr. Chang's NPI, 1518462431, was assigned on March 25, 2018. Dr. Chang graduated from University of Missouri, Columbia School of Medicine in 2018. Dr. Chang holds Washington license PENDING.
- NPI
- 1518462431NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991107757
- NPI enumeration date
- March 25, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (253) 697-2102
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan L. Chang practices at MultiCare Good Samaritan Hospital in Puyallup, Washington
Dr. Chang's primary practice is MultiCare Good Samaritan Hospital, at 401 15th Avenue SE, Puyallup, WA 98372 in Pierce County. The practice phone is (253) 697-2102.
- MultiCare Good Samaritan Hospital401 15th Avenue SE, Puyallup, WA 98372 · Pierce CountyPhone(253) 697-2102
Source: Dmand AI Affiliation Data
Dr. Jonathan L. Chang is affiliated with 3 sites of care and 1 medical group
Dr. Chang's primary practice is MultiCare Good Samaritan Hospital in Puyallup, Washington, part of MultiCare Health System. The medical group on file is Sound Physicians. Dmand AI also links Dr. Chang to 1 more hospital and 1 clinical lab, 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. Jonathan L. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MultiCare Good Samaritan Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan L. Chang is one of 766 hospitalists in Washington
Hospitalist is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Chang is licensed in Washington.
Specialties and state licenses
- Hospitalist, WashingtonPrimary
Hospitalists near Dr. Chang
Counts of hospitalists 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. Jonathan L. Chang billed Medicare for 568 services in 2024
CMS data shows 568 Medicare services from Dr. Chang across 5 procedure codes in 2024, for 234 Medicare patients. Medicare paid $49,659 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: 6582024: 56814%
Dr. Chang compared with the Washington median for hospitalists, 2024
- Dr. Chang
- Washington median
- Medicare services
- 568vs 31481% above
- Medicare patients
- 234vs 15749% above
- Part D claims
- 225vs 405.6 times
Medians across 696 hospitalists 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan L. Chang treated 234 Medicare patients in 2024, average age 77
CMS counts 234 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 80 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.62, 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 74, with 53% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women12051%
- Men11449%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Chronic kidney disease53%
- Heart failure51%
- Mood disorders48%
- Depression44%
- Ischemic heart disease43%
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 74
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan L. Chang wrote 425 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 425 Medicare Part D claims for 152 patients. 90% of them were for generic drugs. CMS names the drug for 225 of them, across 12 drugs with 11 or more claims each, at $7,012 in total drug cost. In 2023, CMS named 150 claims across 10 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic382 claims90%
- Brand-name and other43 claims10%
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
- Opioids5%21 of 425 claims
- Antibiotics16%66 of 425 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: 1502024: 22550%
Drugs named by CMS: 12 in 2024, 10 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
How Dr. Jonathan L. 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. Jonathan L. Chang received $116 in industry payments from 2021 to 2025
CMS Open Payments shows 5 general payments to Dr. Chang from 5 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $38.
General payments to Dr. Chang by program year, 2021 to 2025
Companies that paid Dr. Chang the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan L. Chang graduated from University of Missouri, Columbia School of Medicine
Dr. Chang graduated from University of Missouri, Columbia School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathan L. 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. Jonathan L. 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. Jonathan L. Chang's NPI number?
Dr. Jonathan L. Chang's NPI number is 1518462431. It was assigned on March 25, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan L. Chang?
Dr. Jonathan L. Chang is a hospitalist in Puyallup, Washington. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Jonathan L. Chang practice?
Dr. Chang practices at 401 15th Avenue SE, Puyallup, WA 98372. Dr. Chang's primary practice is MultiCare Good Samaritan Hospital in Puyallup, Washington, part of MultiCare Health System. Dmand AI also links Dr. Chang to 1 hospital and 1 clinical lab.
What is Dr. Jonathan L. Chang's office phone number?
The practice phone on file for Dr. Chang is (253) 697-2102.
What is Dr. Jonathan L. Chang's medical license number?
Dr. Chang holds Washington license PENDING.
Which hospitals is Dr. Jonathan L. Chang affiliated with?
Dr. Chang practices at MultiCare Good Samaritan Hospital in Puyallup, Washington. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Jonathan L. Chang part of?
Dr. Chang is linked to Sound Physicians.
Does Dr. Jonathan L. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 568 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Jonathan L. Chang see?
CMS counts 234 Medicare patients who saw Dr. Chang in 2024, with an average age of 77.
What services does Dr. Jonathan L. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
Show 4 more questionsShow fewer questions
Where did Dr. Jonathan L. Chang go to medical school?
Dr. Chang graduated from University of Missouri, Columbia School of Medicine in 2018.
What drugs does Dr. Jonathan L. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Cefdinir, Metoprolol Succinate and Atorvastatin Calcium.
Has Dr. Jonathan L. Chang received payments from drug or device companies?
CMS Open Payments shows $116 in general payments to Dr. Chang from 5 companies from 2021 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Jonathan L. Chang been practicing?
Dr. Chang graduated from medical school in 2018, 8 years ago.
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