NPPES file of Aug 9, 2026

Cornerstone Montgomery, INC in Bethesda, MD

This location of Cornerstone Montgomery bills under NPI 1326410234, an organization record issued on Oct 30, 2015 with the primary taxonomy Mental Illness Community Based Residential Treatment Facility. It is one of 41 NPIs registered under this name and one of 6 in Bethesda; 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
1326410234
Legal name
Cornerstone Montgomery, INC
Entity
Type 2 · organization, a subpart
Parent organization
Cornerstone Montgomery, INC
Primary taxonomy
Mental Illness Community Based Residential Treatment Facility 320800000X
Practice location
6040 SOUTHPORT DR, Bethesda, MD 20814
Phone
301-493-4200
Enumerated
Oct 30, 2015
Record updated
Oct 30, 2015
Authorized official
Cfo (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 5 Bethesda NPIs

  1. Cornerstone Montgomery, INC6040 SOUTHPORT DR · issued Jul 26, 20051194725739
  2. Cornerstone Montgomery, INC6040 SOUTHPORT DR · issued Sep 13, 20061588769947
  3. Cornerstone Montgomery, INC6040 SOUTHPORT DR · issued Oct 30, 20151881066793
  4. Cornerstone Montgomery, INC6040 SOUTHPORT DR · issued Dec 16, 20191992343370
  5. Cornerstone Montgomery, INC6040 SOUTHPORT DR · issued Jul 22, 20221932834900

7 clinicians CMS lists with Cornerstone Montgomery in Bethesda

  1. Millicent Boa-Amponsem, DNP, PMHNP-BC, CRNPPsychiatric/Mental Health Nurse Practitioner1659858769
  2. Maria Castineira Garcia, MDPsychiatry Physician1730382599
  3. Joy Chang, MDAddiction Psychiatry Physician1154620540
  4. John Danna, PHDPsychologist1699102053
  5. Amanda Day, LCSW-CClinical Social Worker1043197106
  6. David Peet, LCSW-CClinical Social Worker1710228325
  7. Wubeshet TesemaPsychiatric/Mental Health Nurse Practitioner1134760036

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

All 41 Cornerstone Montgomery NPIs

Every location registered under this name, in 12 cities.

See every location

Checking an organization

  1. Confirm the business with the Maryland 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

What does subpart mean?

The organization registered this NPI as a subpart: a part of the organization, such as a location, that bills under its own NPI.

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 Bethesda NPI should I use?

Ask the office which NPI it bills under; all 6 Bethesda 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.