NPPES file of Aug 9, 2026

Psi Services III, INC in Washington, DC

This location of Psi Services III bills under NPI 1366653487, an organization record issued on May 24, 2007 with the primary taxonomy Clinic/Center. It is one of 10 NPIs registered under this name and one of 9 in Washington; each clinician who sees you there has their own NPI and license.

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

Organization recordNPPES, Aug 2026
1366653487
Legal name
Psi Services III, INC
Entity
Type 2 · organization
Primary taxonomy
Clinic/Center 261Q00000X
Practice location
770 M ST SE, Washington, DC 20003
Phone
202-547-3870
Mailing address
Bethesda, MD
Enumerated
May 24, 2007
Record updated
Oct 25, 2012
Authorized official
V.P. Finance (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other 8 Washington NPIs

  1. Psi Services III, INC5820 DIX ST NE · issued May 10, 20071093929747
  2. Psi Services III, INC5820 DIX ST NE · issued May 10, 20071083828735
  3. Psi Services III, INC5820 DIX ST NE · issued May 10, 20071508070251
  4. Psi Services III, INC5820 DIX ST NE · issued Aug 22, 20071720271836
  5. Psi Services III, INC5820 DIX ST NE · issued Dec 2, 20111942578133
  6. Psi Services III, INC5820 DIX ST NE · issued Oct 21, 20151114399862
  7. Psi Services III, INC5820 DIX ST NE · issued Sep 21, 20211285305292
  8. Psi Services III, INC5820 DIX ST NE · issued Jul 14, 20251720979180

8 clinicians CMS lists with Psi Services III in Washington

  1. James Campbell, MSW, LICSWClinical Social Worker1477932960
  2. Sarah GaudreauCounselor1841818754
  3. Phyllis Mayo, PHDClinical Psychologist1174873061
  4. Amber Miller, LICSWClinical Social Worker1790122737
  5. Solange Missibi, APRN, PMHNPPsychiatric/Mental Health Nurse Practitioner1174886931
  6. John Ndambuki, LPC, LCPCProfessional Counselor1538478656
  7. Augusta NnawubaPsychiatric/Mental Health Nurse Practitioner1184323669
  8. Mariama SaffaClinical Social Worker1609645415

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 10 Psi Services III NPIs

Every location registered under this name, in 2 cities.

See every location

Checking an organization

  1. Confirm the business with the District of Columbia secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Why is the mailing address in Maryland?

The mailing address in the record (Bethesda, MD) is where the organization receives mail. Care is given at the practice location in Washington.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Washington NPI should I use?

Ask the office which NPI it bills under; all 9 Washington NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.