Dr. I Jen M. Chen, MD
- Medicare services, 2024
- 279
- Medicare patients, 2024
- 28
- Part D claims, 2024
- 3,157
- Industry payments
- $726
- Affiliated sites
- 3
- Practice address
- 4416 South Brandon Street, Seattle, WA 98118
- Practice phone
- Call (206) 721-3630
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kin On Rehab & Care Center
Skilled Nursing Facility · Seattle, Washington
Find Dr. Chen'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. I Jen M. Chen is an internist in Seattle, Washington
Dr. Chen practices at Kin On Rehab & Care Center in Seattle, Washington.
Dr. Chen's NPI, 1023187622, was assigned on November 7, 2006. Dr. Chen holds Washington license MD00022361.
- NPI
- 1023187622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769493774
- NPI enumeration date
- November 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (206) 721-3630
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. I Jen M. Chen practices at Kin on Rehab & Care Center in Seattle, Washington
Dr. Chen's primary practice is Kin on Rehab & Care Center, at 4416 South Brandon Street, Seattle, WA 98118 in King County. The practice phone is (206) 721-3630.
- Kin on Rehab & Care Center4416 South Brandon Street, Seattle, WA 98118 · King CountyPhone(206) 721-3630
Source: Dmand AI Affiliation Data
Dr. I Jen M. Chen is affiliated with 3 sites of care and 1 medical group
Dr. Chen's primary practice is Kin On Rehab & Care Center in Seattle, Washington. The medical group on file is Jespersen and Thosath DPMS. Dmand AI also links Dr. Chen to 1 more group practice or clinic and 1 senior living community, 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. I Jen M. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kin On Rehab & Care Center | 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. I Jen M. Chen is one of 2,689 internists in Washington
Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Chen
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. I Jen M. Chen billed Medicare for 279 services in 2024
CMS data shows 279 Medicare services from Dr. Chen across 2 procedure codes in 2024, for 28 Medicare patients. Medicare paid $20,294 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5152024: 27946%
Dr. Chen compared with the Washington median for internists, 2024
- Dr. Chen
- Washington median
- Medicare services
- 279vs 36423% below
- Medicare patients
- 28vs 16583% below
- Part D claims
- 2,837vs 18215.6 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Chen'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. Chen and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. I Jen M. Chen treated 28 Medicare patients in 2024, average age 86
CMS counts 28 Medicare patients who saw Dr. Chen in 2024. The largest group is 85 and over, with 13 patients. 75% of them have high blood pressure, and 57% have high cholesterol. 61% are also on Medicaid. Their average risk score is 1.80, 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. Chen's median patient age at 85, with 57% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol57%
- Alzheimer's and dementia54%
- Diabetes46%
- Depression39%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 85
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. I Jen M. Chen wrote 3,157 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 3,157 Medicare Part D claims for 75 patients. 80% of them were for generic drugs. CMS names the drug for 2,837 of them, across 58 drugs with 11 or more claims each, at $108,496 in total drug cost. In 2023, CMS named 3,959 claims across 65 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic2,529 claims80%
- Brand-name and other628 claims20%
Dr. Chen'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. Chen's Part D claims, 2024
- Antibiotics1%28 of 3,157 claims
- Antipsychotics, patients 65 and over2%67 of 3,157 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: 3,9592024: 2,83728%
Drugs named by CMS: 58 in 2024, 65 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. I Jen M. Chen takes part in Medicare
Dr. Chen 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. I Jen M. Chen received $726 in industry payments from 2016 to 2019
CMS Open Payments shows 14 general payments to Dr. Chen from 10 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $127.
General payments to Dr. Chen by program year, 2016 to 2019
Companies that paid Dr. Chen the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. I Jen M. Chen'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) |
| 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. I Jen M. Chen
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. I Jen M. Chen's NPI number?
Dr. I Jen M. Chen's NPI number is 1023187622. It was assigned on November 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. I Jen M. Chen?
Dr. I Jen M. Chen is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. I Jen M. Chen practice?
Dr. Chen practices at 4416 South Brandon Street, Seattle, WA 98118. Dr. Chen's primary practice is Kin On Rehab & Care Center in Seattle, Washington. Dmand AI also links Dr. Chen to 1 group practice or clinic and 1 senior living community.
What is Dr. I Jen M. Chen's office phone number?
The practice phone on file for Dr. Chen is (206) 721-3630.
What is Dr. I Jen M. Chen's medical license number?
Dr. Chen holds Washington license MD00022361.
What medical group is Dr. I Jen M. Chen part of?
Dr. Chen is linked to Jespersen and Thosath DPMS.
Does Dr. I Jen M. Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 279 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. I Jen M. Chen see?
CMS counts 28 Medicare patients who saw Dr. Chen in 2024, with an average age of 86.
What services does Dr. I Jen M. Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were nursing facility care (99308) and nursing facility care (99309).
What drugs does Dr. I Jen M. Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Tamsulosin HCl.
Has Dr. I Jen M. Chen received payments from drug or device companies?
CMS Open Payments shows $726 in general payments to Dr. Chen from 10 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. I Jen M. Chen been practicing?
Dr. Chen graduated from medical school in 1977, 49 years ago.
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