Lian Lancaster, MD
Emergency Medicine Physician · Washington, DC
Lian Lancaster, MD is an emergency medicine physician with a practice address in Washington, District of Columbia, and NPI 1922687623, issued on Apr 8, 2021. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Lian Lancaster
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A196312 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2120 L St NW Ste 450, Washington, DC 20037
- Phone
- (202) 741-2911
- Enumerated
- Apr 8, 2021
- Record last updated
- Jul 30, 2024
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 360 in District of Columbia → Look up another NPI →
Also registered at 2120 L St NW Ste 450
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lian Lancaster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average emergency medicine physician in 2024
120 Medicare Part D claims for 98 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Oxycodone Hcl16 claims
- Cephalexin15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Lian Lancaster among 360 emergency medicine physician records in District of Columbia
Lian Lancaster, MD is one of 360 emergency medicine physician records with a practice address in District of Columbia. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 90% of them.
- NPI issued2021 · 90% of these records are older, 6% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 44% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
360 emergency medicine physician records list a practice address in Washington
They are 360 of the 45,857 NPPES records with a practice address in Washington, and 360 emergency medicine physician records in District of Columbia.
All 360 in District of Columbia → Every provider in Washington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Keith Boniface, MDWashington, DC 200371659329498
- Yolanda Haywood, MDWashington, DC 200371326058231
- Thomas Kirsch, M.D.Washington, DC 200371790726776
- John Lafleur, MDWashington, DC 200371992719108
- Jennifer Lee, MDWashington, DC 200371295838613
- David Marcozzi, M.D., MHS-CLWashington, DC 200371154405033
- Larissa May, MDWashington, DC 200371083624282
- Andrew Meltzer, M.D.Washington, DC 200371366478505
Common questions
What is Lian Lancaster, MD's NPI number?
Lian Lancaster, MD's National Provider Identifier (NPI) is 1922687623, issued on Apr 8, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Lian Lancaster, MD located?
The NPPES record lists a practice address at 2120 L St NW Ste 450, Washington, DC, 20037. Phone: (202) 741-2911. Providers update this record themselves, so call before visiting.
How can I verify Lian Lancaster, MD's license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lian Lancaster, MD prescribe under Medicare Part D?
In 2024, Lian Lancaster, MD had 120 Medicare Part D claims for 98 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.