Dr. Grace Yi Chen, MD, PhD
- Medicare services, 2024
- 99
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 139
- Hospital affiliations
- 1
- Industry payments
- $162
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
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. Grace Yi Chen is an internist in Ann Arbor, Michigan
Dr. Chen practices at University Hospital in Ann Arbor, Michigan.
Dr. Chen's NPI, 1063534147, was assigned on April 6, 2007. Dr. Chen graduated from University of Michigan Medical School in 2001. Dr. Chen holds Michigan license 4301077744.
- NPI
- 1063534147NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153488861
- NPI enumeration date
- April 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Grace Yi Chen practices at University Hospital in Ann Arbor, Michigan
Dr. Chen's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Grace Yi Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Chen is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dr. Chen's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Grace Yi Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Grace Yi Chen is one of 4,804 internists in Michigan
Internal medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chen is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
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. Grace Yi Chen billed Medicare for 99 services in 2024
CMS data shows 99 Medicare services from Dr. Chen across 3 procedure codes in 2024, for 44 Medicare patients. Medicare paid $8,722 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 902024: 838%
- Other services
- 2023: 02024: 16
Dr. Chen compared with the Michigan median for internists, 2024
- Dr. Chen
- Michigan median
- Medicare services
- 99vs 42377% below
- Medicare patients
- 44vs 15972% below
- Part D claims
- 42vs 31487% below
Medians across 4,524 internists in Michigan 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Grace Yi Chen treated 44 Medicare patients in 2024, average age 71
CMS counts 44 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have cancer, and 61% have high blood pressure. 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. Chen's median patient age at 63, with 45% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women1739%
- Men2761%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- Cancer75%
- High blood pressure61%
- High cholesterol57%
- Arthritis34%
- Diabetes34%
- Chronic kidney disease27%
- Anxiety25%
- Heart failure25%
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 63
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Grace Yi Chen wrote 139 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 139 Medicare Part D claims for 40 patients. 76% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $13,001 in total drug cost. In 2023, CMS named 93 claims across 6 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic106 claims76%
- Brand-name33 claims24%
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
- Opioids11%15 of 139 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: 932024: 4255%
Drugs named by CMS: 3 in 2024, 6 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. Grace Yi Chen offers telehealth to Medicare patients
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Grace Yi Chen received $162 in industry payments from 2018 to 2024
CMS Open Payments shows 5 general payments to Dr. Chen from 4 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $105.
General payments to Dr. Chen by program year, 2018 to 2024
Companies that paid Dr. Chen the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Grace Yi Chen graduated from University of Michigan Medical School
Dr. Chen graduated from University of Michigan Medical School in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Grace Yi 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) |
| 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. Grace Yi 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. Grace Yi Chen's NPI number?
Dr. Grace Yi Chen's NPI number is 1063534147. It was assigned on April 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Grace Yi Chen?
Dr. Grace Yi Chen is an internist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Grace Yi Chen practice?
Dr. Chen practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Chen's primary practice is University Hospital in Ann Arbor, Michigan.
What is Dr. Grace Yi Chen's office phone number?
The practice phone on file for Dr. Chen is (734) 936-4000.
What is Dr. Grace Yi Chen's medical license number?
Dr. Chen holds Michigan license 4301077744.
Which hospitals is Dr. Grace Yi Chen affiliated with?
Dr. Chen is affiliated with University Hospital.
What medical group is Dr. Grace Yi Chen part of?
Dr. Chen is linked to University of Michigan Health.
Does Dr. Grace Yi Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 99 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. Grace Yi Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
How many Medicare patients does Dr. Grace Yi Chen see?
CMS counts 44 Medicare patients who saw Dr. Chen in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Grace Yi Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, established patient (99215), medicare service (G2211) and office visit, established patient (99214).
Where did Dr. Grace Yi Chen go to medical school?
Dr. Chen graduated from University of Michigan Medical School in 2001.
What drugs does Dr. Grace Yi Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Prochlorperazine Maleate, Eliquis and Ondansetron HCl.
Has Dr. Grace Yi Chen received payments from drug or device companies?
CMS Open Payments shows $162 in general payments to Dr. Chen from 4 companies from 2018 to 2024. The largest total came from Allergan Inc.
How long has Dr. Grace Yi Chen been practicing?
Dr. Chen graduated from medical school in 2001, 25 years ago.
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