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Edit this profileAt a glance
- 3650 Joseph Siewick Dr, Suite 400, Fairfax, VA 22033
About Dr. Obrien
Based in Fairfax, VA, Lynn M. Obrien, MD is listed in the NPI registry under family medicine. NPI 1164418000 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
- (703) 391-2020
- Email not available
Practice Locations
3650 JOSEPH SIEWICK DR SUITE 400
Fairfax, VA 22033
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 family doctors at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 5 related providers in 1 group
Common questions
What does Dr. Obrien specialize in?
Dr. Obrien is a family doctor in Fairfax, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Where is Dr. Obrien located?
Dr. Obrien is listed at 3650 Joseph Siewick Dr Suite 400, Fairfax, VA 22033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Obrien's phone number?
The number on file is (703) 391-2020. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Obrien's NPI number?
Dr. Obrien's National Provider Identifier is 1164418000. 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 long has Dr. Obrien been practicing?
Dr. Obrien has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Obrien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Obrien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.