NPPES file of Aug 9, 2026

Cornerstone Montgomery, INC in Bethesda, MD

This location of Cornerstone Montgomery bills under NPI 1588769947, an organization record issued on Sep 13, 2006 with the primary taxonomy Community/Behavioral Health Agency. 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
1588769947
Legal name
Cornerstone Montgomery, INC
Entity
Type 2 · organization
Primary taxonomy
Community/Behavioral Health Agency 251S00000X
Practice location
6040 SOUTHPORT DR, Bethesda, MD 20814
Phone
301-493-4200
Enumerated
Sep 13, 2006
Record updated
Jul 21, 2022
Authorized official
Utilization Management Director (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 Oct 30, 20151326410234
  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

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.