Dr. Francis Yg Lee, MD
- Medicare services, 2020
- 7,517
- Part D claims, 2022
- 11
- Industry payments
- $1,655
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 6535 North Charles Street, Baltimore, MD 21204
- Practice phone
- Call (410) 828-7417
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
James H Mersey Mdpa - Primary Care - Baltimore
Multi-specialty group site · Baltimore, Maryland
Find Dr. Lee'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. Francis Yg Lee is an endocrinologist in Washington, District of Columbia
Dr. Lee practices at James H Mersey Mdpa - Primary Care - Baltimore in Baltimore, Maryland.
Dr. Lee's NPI, 1861497828, was assigned on June 16, 2005. Dr. Lee holds Maryland license D0043991.
- NPI
- 1861497828NPI Registry (opens in a new tab)
- NPI enumeration date
- June 16, 2005
- NPI status
- Active
- Practice phone
- (410) 828-7417
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Francis Yg Lee practices in Baltimore and Washington
Dr. Lee's primary practice is James H Mersey Mdpa - Primary Care - Baltimore, at 6535 North Charles Street, Baltimore, MD 21204. The practice phone is (410) 828-7417. The NPI Registry lists Dr. Lee's practice address as 5255 Loughboro NW Rd, Washington, DC 20016.
- James H Mersey Mdpa - Primary Care - BaltimorePrimary6535 North Charles Street, Baltimore, MD 21204Phone(410) 828-7417
- NPI Registry address5255 Loughboro NW Rd, Washington, DC 20016 · District Of Columbia CountyPhone(410) 828-7417
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Francis Yg Lee is affiliated with 1 site of care and 1 medical group
Dr. Lee's primary practice is James H Mersey Mdpa - Primary Care - Baltimore in Baltimore, Maryland. The medical group on file is Bay West Endocrinology Associates.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Francis Yg Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| James H Mersey Mdpa - Primary Care - Baltimore | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Francis Yg Lee is one of 53 endocrinologists in District of Columbia
Endocrinology, diabetes and metabolism is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. Lee is licensed in Maryland.
Specialties and state licenses
- Endocrinology, diabetes and metabolism, MarylandPrimary
Endocrinologists near Dr. Lee
Counts of endocrinologists 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. Francis Yg Lee billed Medicare for 7,517 services in 2020
CMS data shows 7,517 Medicare services from Dr. Lee across 31 procedure codes in 2020. Medicare paid $170,154 for them. Every service was in an office.
Dr. Lee's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Drugs given in the office
- 2019: 7,0802020: 4,02043%
- Lab and pathology
- 2019: 5,8602020: 2,12664%
- Office and hospital visits
- 2019: 1,2012020: 47061%
- Imaging
- 2019: 9602020: 45653%
- Surgery
- 2019: 9062020: 34862%
- Tests and treatments
- 2019: 2402020: 9760%
- Other services
- 2019: 342020: 0100%
Dr. Lee compared with the District of Columbia median for endocrinologists, 2020
- Dr. Lee
- District of Columbia median
- Medicare services
- 7,517vs 54913.7 times
- Part D claims
- 11vs 79799% below
Medians across 50 endocrinologists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Lee's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Lee?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lee and other endocrinologists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Francis Yg Lee's patients have a median age of 77
Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 77, with 86% women.
Dr. Lee's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women86%
- Men14%
Source: Dmand AI Patient Panel Data
Dr. Francis Yg Lee wrote 11 Medicare Part D claims in 2022
In 2022, Dr. Lee wrote 11 Medicare Part D claims. They cover 1 drug, with $5,006 in total drug cost. In 2021, CMS named 58 claims across 3 drugs.
Dr. Lee's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 582022: 1181%
Drugs named by CMS: 1 in 2022, 3 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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. Francis Yg Lee received $1,655 in industry payments from 2016 to 2021
CMS Open Payments shows 48 general payments to Dr. Lee from 18 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 53% of the total. Sanofi and Genzyme US Companies paid the most, $450.
General payments to Dr. Lee by program year, 2016 to 2021
General payments to Dr. Lee by kind, 2016 to 2021
- Food and beverage$88053%
- Speaker and faculty fees$40024%
- Consulting fees$37523%
Companies that paid Dr. Lee the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Francis Yg Lee'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Francis Yg Lee
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. Francis Yg Lee's NPI number?
Dr. Francis Yg Lee's NPI number is 1861497828. It was assigned on June 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Francis Yg Lee?
Dr. Francis Yg Lee is an endocrinologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).
Where does Dr. Francis Yg Lee practice?
Dr. Lee practices at 6535 North Charles Street, Baltimore, MD 21204. Dr. Lee also practices at 5255 Loughboro NW Rd, Washington, DC 20016. Dr. Lee's primary practice is James H Mersey Mdpa - Primary Care - Baltimore in Baltimore, Maryland.
What is Dr. Francis Yg Lee's office phone number?
The practice phone on file for Dr. Lee is (410) 828-7417.
What is Dr. Francis Yg Lee's medical license number?
Dr. Lee holds Maryland license D0043991.
What medical group is Dr. Francis Yg Lee part of?
Dr. Lee is linked to Bay West Endocrinology Associates.
Does Dr. Francis Yg Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 7,517 services in 2020.
What services does Dr. Francis Yg Lee bill to Medicare?
In 2020, Dr. Lee's most billed Medicare services were injected or infused drug (J0897), surgery: heart and blood vessels (36415) and office visit, established patient (99215).
What drugs does Dr. Francis Yg Lee prescribe most?
In 2022 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Lantus Solostar.
Has Dr. Francis Yg Lee received payments from drug or device companies?
CMS Open Payments shows $1,655 in general payments to Dr. Lee from 18 companies from 2016 to 2021. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Francis Yg Lee been practicing?
Dr. Lee's NPI was assigned in 2005.
Selling to endocrinology, diabetes and metabolism practices?
See endocrinologists in District of Columbia by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card