A Study of Tirzepatide (LY3298176) in Participants With Type 2 Diabetes Not Controlled With Diet and Exercise Alone (opens in a new tab)
CompletedPhase 3
$143 in research paymentsDiabetes Mellitus, Type 2Diabetes MellitusTirzepatide
Dr. Michael C. Chen, MD
NPI1619926011PAC ID7214995653
- Medicare services, 2023
- 20
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 7,606
- Clinical trials
- 7
- Hospital affiliations
- 5
- Practice address
- 1401 N 10th Avenue, Stayton, OR 97383
- Practice phone
- Call (503) 769-2175
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Michael C. Chen is an internist in Stayton, Oregon
Dr. Chen practices at Santiam Hospital & Clinics in Stayton, Oregon, part of Salem Health Hospitals and Clinics.
Dr. Chen's NPI, 1619926011, was assigned on May 10, 2006. Dr. Chen holds Oregon license MD21385.
NPI and contact details
- NPI
- 1619926011NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214995653
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 769-2175
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael C. Chen practices at Santiam Hospital & Clinics in Stayton, Oregon
Dr. Chen's primary practice is Santiam Hospital & Clinics, at 1401 N 10th Avenue, Stayton, OR 97383 in Marion County. The practice phone is (503) 769-2175.
- Santiam Hospital & Clinics1401 N 10th Avenue, Stayton, OR 97383 · Marion CountyPhone(503) 769-2175
Source: Dmand AI Affiliation Data
Dr. Michael C. Chen is affiliated with 6 sites of care and 1 medical group
Dr. Chen's primary practice is Santiam Hospital & Clinics in Stayton, Oregon, part of Salem Health Hospitals and Clinics. Dr. Chen is also affiliated with Salem Hospital. The medical group on file is Santiam Hospital & Clinics. Dmand AI also links Dr. Chen to 3 more hospitals and 1 home health agency, each named with a free account.
Salem HospitalSantiam Hospital & Clinics3 hospitalsNames with a free account1 home health agencyName with a free account
See all 7 affiliations for Dr. ChenSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael C. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santiam Hospital & Clinics | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael C. Chen is one of 1,680 internists in Oregon
Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
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. Michael C. Chen billed Medicare for 20 services in 2023
CMS data shows 20 Medicare services from Dr. Chen across 1 procedure code in 2023, for 24 Medicare patients. Medicare paid $1,206 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202320
Medicare patients24
Paid by Medicare$1,206
Procedure codes1
Dr. Chen's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 242023: 2017%
Dr. Chen compared with the Oregon median for internists, 2023
- Dr. Chen
- Oregon median
- Medicare services
- 20vs 30093% below
- Medicare patients
- 24vs 13282% below
- Part D claims
- 6,970vs 22231.4 times
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2023
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. Michael C. Chen treated 24 Medicare patients in 2024, average age 79
CMS counts 24 Medicare patients who saw Dr. Chen in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 73, with 46% women.
Medicare patients, 202424
Average age79
Average risk score1.41
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Heart failure50%
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 73
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael C. Chen wrote 7,606 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 7,606 Medicare Part D claims for 467 patients. 83% of them were for generic drugs. CMS names the drug for 6,970 of them, across 97 drugs with 11 or more claims each, at $1,087,861 in total drug cost. In 2023, CMS named 6,523 claims across 104 drugs.
Part D claims, 20247,606
Drugs named by CMS97
Total drug cost$1.1M
Part D patients467
Dr. Chen's Part D claims by kind of drug, 2024
- Generic6,278 claims83%
- Brand-name1,293 claims17%
- Other35 claims0%
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
- Opioids1%102 of 7,606 claims
- Antibiotics1%101 of 7,606 claims
- Antipsychotics, patients 65 and over1%71 of 7,606 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: 6,5232024: 6,9707%
Drugs named by CMS: 97 in 2024, 104 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. Michael C. 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. Michael C. Chen has worked on 7 clinical trials
Dmand AI links Dr. Chen to 7 clinical trials, 2 of them phase 2 studies. Conditions studied include Diabetes Mellitus, Type 2 and Diabetes Mellitus. Eli Lilly and Company sponsors the most, 7. Open Payments lists research payments to Dr. Chen that name 7 trials.
Clinical trials with Dr. Chen by phase
- NonePhase 1: no trials
- 2Phase 2: 2 trials
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Conditions in Dr. Chen's trials
- Diabetes Mellitus, Type 2
- Diabetes Mellitus
Investigators on the most trials with Dr. Chen
- Juan Pablo Frias, MD7 shared trials
- Stanley H. Hsia, MD7 shared trials
- Julio Rosenstock, MD6 shared trials
Recent clinical trials with Dr. Chen
A Study of Tirzepatide (LY3298176) in Participants With Type 2 Diabetes Mellitus (opens in a new tab)
CompletedPhase 2
$8,424 in research paymentsDiabetes Mellitus, Type 2Diabetes MellitusTirzepatideDulaglutide
A Study of Investigational Dulaglutide Doses in Participants With Type 2 Diabetes on Metformin Monotherapy (opens in a new tab)
CompletedPhase 2
$2,386 in research paymentsDiabetes Mellitus, Type 2Diabetes MellitusDulaglutide
$8,319 in research paymentsDiabetes Mellitus, Type 2Diabetes MellitusLY3209590Insulin Degludec
$369 in research paymentsDiabetes Mellitus, Type 2Diabetes MellitusInsulin GlargineTirzepatide
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael C. Chen received $5,787 in industry payments from 2016 to 2025
CMS Open Payments shows 48 general payments to Dr. Chen from 17 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 63% of the total. Eli Lilly and Company paid the most, $3,566. It also lists 13 research payments totaling $31,518 from 2016 to 2020, naming 7 clinical trials.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
$5.8Kin total
- Travel and lodging$3,64463%
- Food and beverage$1,93733%
- Speaker and faculty fees$1152%
- Consulting fees$751%
- Education$160%
Companies that paid Dr. Chen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael C. 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Michael C. 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. Michael C. Chen's NPI number?
Dr. Michael C. Chen's NPI number is 1619926011. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael C. Chen?
Dr. Michael C. Chen is an internist in Stayton, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael C. Chen practice?
Dr. Chen practices at 1401 N 10th Avenue, Stayton, OR 97383. Dr. Chen's primary practice is Santiam Hospital & Clinics in Stayton, Oregon, part of Salem Health Hospitals and Clinics. Dmand AI also links Dr. Chen to 3 hospitals and 1 home health agency.
What is Dr. Michael C. Chen's office phone number?
The practice phone on file for Dr. Chen is (503) 769-2175.
What is Dr. Michael C. Chen's medical license number?
Dr. Chen holds Oregon license MD21385.
Which hospitals is Dr. Michael C. Chen affiliated with?
Dr. Chen practices at Santiam Hospital & Clinics in Stayton, Oregon. Dr. Chen is also affiliated with Salem Hospital. Dmand AI links Dr. Chen to 3 more hospitals.
What medical group is Dr. Michael C. Chen part of?
Dr. Chen is linked to Santiam Hospital & Clinics.
Does Dr. Michael C. Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 20 services in 2023, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Michael C. Chen see?
CMS counts 24 Medicare patients who saw Dr. Chen in 2024, with an average age of 79.
What services does Dr. Michael C. Chen bill to Medicare?
In 2023, Dr. Chen's most billed Medicare services were hospital inpatient care (99232).
Show 4 more questionsShow fewer questions
What drugs does Dr. Michael C. Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Rosuvastatin Calcium, Lisinopril and Losartan Potassium.
Has Dr. Michael C. Chen received payments from drug or device companies?
CMS Open Payments shows $5,787 in general payments to Dr. Chen from 17 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Michael C. Chen been practicing?
Dr. Chen graduated from medical school in 1992, 34 years ago.
Does Dr. Michael C. Chen do research?
Dr. Chen has worked on 7 clinical trials.
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