Provider Profile
Douglas Mao
Unclaimed ProfileAbout Douglas Mao
No biography has been added yet. Is this you? Claim this profile to add one.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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) 771-5155
- Email not available
Practice Locations
21641 RIDGETOP CIR STE 210
Sterling, VA 20166
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 mental health counselors at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 23 related providers in 3 groups
Other mental health counselors in Sterling 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Douglas Mao?
Douglas Mao is a mental health counselor in Sterling, VA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Douglas Mao's address?
Douglas Mao is listed at 21641 Ridgetop Cir Ste 210, Sterling, VA 20166. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Douglas Mao?
The number on file is (703) 771-5155. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Douglas Mao's NPI number?
Douglas Mao's National Provider Identifier is 1619597648. 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
Where did Douglas Mao train?
Douglas Mao attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Douglas Mao been practicing?
Douglas Mao has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
Has Douglas Mao confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Douglas Mao. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.