NPPES file of Aug 9, 2026

Douglas Mao

Mental Health Counselor · Sterling, VA

Douglas Mao is a mental health counselor with a practice address in Sterling, Virginia, and NPI 1619597648, issued on Apr 20, 2020. Check the license (Virginia 0701014878, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619597648
Name
Douglas Mao
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
0701014878 VA
Self-reported in NPPES; status is on the state search
Practice location
21641 Ridgetop Cir Ste 210, Sterling, VA 20166
Phone
(703) 771-5155
Enumerated
Apr 20, 2020
Record last updated
May 30, 2025
Medicare enrollment
Enrolled (PECOS I20250729004582); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 21641 Ridgetop Cir Ste 210

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sara Maurakis, LPCMental Health Counselor1104332782
  2. John Miller, L.C.S.WClinical Social Worker1255678470
  3. April ParkerProfessional Counselor1942749163
  4. Marta Ramirez, MSMental Health Counselor1487953972
  5. Mahima Saini, MS, QMHP A/CCase Manager/Care Coordinator1780276428

Verify Douglas Mao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virginia board licenses this profession
    Search for license 0701014878
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Virginia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. County OF Loudoun VirginiaLeesburg, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Douglas Mao among 4,088 mental health counselor records in Virginia

Douglas Mao is one of 4,088 mental health counselor records with a practice address in Virginia. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 37% of them.

  • NPI issued2020 · 37% of these records are older, 57% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2018 · median 2016 among the 438 with a school on file
  • Record last updated2025 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 mental health counselor records list a practice address in Sterling

They are 35 of the 1,057 NPPES records with a practice address in Sterling, and 4,088 mental health counselor records in Virginia.

The 8 mental health counselor records with the nearest ZIP codes

  1. Elisabeth BakerSterling, VA 201661336924109
  2. Margot Cabrera Sotelo, LPCSterling, VA 201661356190656
  3. Anthony Flores, LPCSterling, VA 201661760044200
  4. Katherine Greenleaf, MASterling, VA 201661790126951
  5. Gabrielle HarrisDulles, VA 201661073968673
  6. Maxine Iida, LPCSterling, VA 201661174238844
  7. Chenel Mann, COUNSELORINRESIDENCESterling, VA 201661013498237
  8. Sara Maurakis, LPCSterling, VA 201661104332782

Common questions

What is Douglas Mao's NPI number?

Douglas Mao's National Provider Identifier (NPI) is 1619597648, issued on Apr 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Mao located?

The NPPES record lists a practice address at 21641 Ridgetop Cir Ste 210, Sterling, VA, 20166. Phone: (703) 771-5155. Providers update this record themselves, so call before visiting.

How can I verify Douglas Mao's license?

NPPES lists Virginia license number 0701014878, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity 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.