Dr. Lawrence Tyng-Hann Chen, MD
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 201
- Hospital affiliations
- 2
- Industry payments
- $204
- Medical group
- 1
- Practice address
- 36475 Five Mile Road, Livonia, MI 48154
- Practice phone
- Call (734) 655-4800
- 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. Lawrence Tyng-Hann Chen is an internist in Livonia, Michigan
Dr. Chen practices at Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health.
Dr. Chen's NPI, 1639791916, was assigned on May 10, 2020. Dr. Chen holds Michigan license 4301512433.
- NPI
- 1639791916NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648703835
- NPI enumeration date
- May 10, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 655-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lawrence Tyng-Hann Chen practices at Trinity Health Livonia Hospital in Livonia, Michigan
Dr. Chen's primary practice is Trinity Health Livonia Hospital, at 36475 Five Mile Road, Livonia, MI 48154 in Wayne County. The practice phone is (734) 655-4800.
- Trinity Health Livonia Hospital36475 Five Mile Road, Livonia, MI 48154 · Wayne CountyPhone(734) 655-4800
Source: Dmand AI Affiliation Data
Dr. Lawrence Tyng-Hann Chen is affiliated with 3 sites of care and 1 medical group
Dr. Chen's primary practice is Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health. Dr. Chen is also affiliated with Trinity Health Ann Arbor Hospital. The medical group on file is Trinity Health IHA Medical Group. Dmand AI also links Dr. Chen to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lawrence Tyng-Hann 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 |
|---|---|
| Trinity Health Livonia Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lawrence Tyng-Hann 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. Lawrence Tyng-Hann Chen treated 16 Medicare patients in 2024, average age 74
CMS counts 16 Medicare patients who saw Dr. Chen in 2024. 75% of them have anxiety, and 75% have high blood pressure. Their average risk score is 2.13, 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 76, with 55% women.
Chronic conditions among Dr. Chen's Medicare patients, 2024
- Anxiety75%
- High blood pressure75%
- High cholesterol75%
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 76
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lawrence Tyng-Hann Chen wrote 201 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 201 Medicare Part D claims for 50 patients. 67% of them were for generic drugs. CMS names the drug for 61 of them, across 5 drugs with 11 or more claims each, at $49,704 in total drug cost. In 2023, CMS named 93 claims across 6 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic135 claims67%
- Brand-name51 claims25%
- Other15 claims7%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 932024: 6134%
Drugs named by CMS: 5 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
How Dr. Lawrence Tyng-Hann 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Lawrence Tyng-Hann Chen received $204 in industry payments from 2021 to 2024
CMS Open Payments shows 13 general payments to Dr. Chen from 1 drug or device company from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $204.
General payments to Dr. Chen by program year, 2021 to 2024
Companies that paid Dr. Chen the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Lawrence Tyng-Hann 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 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. Lawrence Tyng-Hann 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. Lawrence Tyng-Hann Chen's NPI number?
Dr. Lawrence Tyng-Hann Chen's NPI number is 1639791916. It was assigned on May 10, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Lawrence Tyng-Hann Chen?
Dr. Lawrence Tyng-Hann Chen is an internist in Livonia, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lawrence Tyng-Hann Chen practice?
Dr. Chen practices at 36475 Five Mile Road, Livonia, MI 48154. Dr. Chen's primary practice is Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health. Dmand AI also links Dr. Chen to 1 group practice or clinic.
What is Dr. Lawrence Tyng-Hann Chen's office phone number?
The practice phone on file for Dr. Chen is (734) 655-4800.
What is Dr. Lawrence Tyng-Hann Chen's medical license number?
Dr. Chen holds Michigan license 4301512433.
Which hospitals is Dr. Lawrence Tyng-Hann Chen affiliated with?
Dr. Chen practices at Trinity Health Livonia Hospital in Livonia, Michigan. Dr. Chen is also affiliated with Trinity Health Ann Arbor Hospital.
What medical group is Dr. Lawrence Tyng-Hann Chen part of?
Dr. Chen is linked to Trinity Health IHA Medical Group.
Does Dr. Lawrence Tyng-Hann Chen accept Medicare?
Yes. CMS lists Dr. Chen as accepting Medicare assignment.
How many Medicare patients does Dr. Lawrence Tyng-Hann Chen see?
CMS counts 16 Medicare patients who saw Dr. Chen in 2024, with an average age of 74.
What drugs does Dr. Lawrence Tyng-Hann Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Hydrochlorothiazide, Fluticasone Propionate and Atorvastatin Calcium.
Has Dr. Lawrence Tyng-Hann Chen received payments from drug or device companies?
CMS Open Payments shows $204 in general payments to Dr. Chen from 1 company from 2021 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Lawrence Tyng-Hann Chen been practicing?
Dr. Chen graduated from medical school in 2020, 6 years ago.
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