Mary Theresa Brenan, PHD
Clinical Psychologist · Washington, DC
Mary Theresa Brenan, PHD is a clinical psychologist with a practice address in Washington, District of Columbia, and NPI 1114137395, issued on May 23, 2007. Check the license (District of Columbia 1377, as entered in NPPES) with the District of Columbia board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Theresa Brenan
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 1377 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1400 20TH St NW, Washington, DC 20036
- Phone
- (202) 833-2329
- Enumerated
- May 23, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1400 20TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Theresa Brenan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich District of Columbia board licenses this profession
Search for license 1377Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
558 clinical psychologist records list a practice address in Washington
They are 558 of the 45,857 NPPES records with a practice address in Washington, and 564 clinical psychologist records in District of Columbia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 558 in Washington → All 564 in District of Columbia → Every provider in Washington →
Other clinical psychologist records in District of Columbia
- Chiara Abbatelli, PSYDWashington, DC1366124398
- Liliana Acosta, PHDWashington, DC1588446165
- Alyssa Adams, PSY.D.Washington, DC1861740854
- Robert AdamskiWashington, DC1427861699
- Alexander Afram, PHDWashington, DC1942703533
- Sarah AfromowitzWashington, DC1720577695
- Vaune Ainsworth, PH.D.Washington, DC1316187933
- Folasade Akinkuotu, PHDWashington, DC1770158313
- Ashley Alderette, PSY.D.Washington, DC1639697550
- Abir Aldhalimi, PHDWashington, DC1952793671
Common questions
What is Mary Theresa Brenan, PHD's NPI number?
Mary Theresa Brenan, PHD's National Provider Identifier (NPI) is 1114137395, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Theresa Brenan, PHD located?
The NPPES record lists a practice address at 1400 20TH St NW, Washington, DC, 20036. Phone: (202) 833-2329. Providers update this record themselves, so call before visiting.
How can I verify Mary Theresa Brenan, PHD's license?
NPPES lists District of Columbia license number 1377, as entered by the provider. Search the District of Columbia 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. 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.