Are you Mark Klein, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 2141 K St Nw, Ste 900, Washington, DC 20037
About Dr. Klein
Listed in the NPI registry as a specialist, Mark Klein, M.D. practices in Washington, DC. NPI 1194776419 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (202) 223-9722
- Email not available
Practice Locations
2141 K ST NW STE 900
Washington, DC 20037
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What does Mark Klein specialize in?
Mark Klein is a specialist in Washington, DC. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mark Klein located?
Mark Klein is listed at 2141 K St Nw Ste 900, Washington, DC 20037. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark Klein's phone number?
The number on file is (202) 223-9722. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark Klein?
Mark Klein's National Provider Identifier is 1194776419. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Mark Klein have?
Mark Klein has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is Mark Klein's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark Klein. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.