Lillian De Petrillo, PHD
Clinical Psychologist · Washington, DC
Lillian De Petrillo, PHD is a clinical psychologist with a practice address in Washington, District of Columbia, and NPI 1962755157, issued on Oct 25, 2012. Check the license (District of Columbia PSY1000892, 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
- Lillian De Petrillo
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY1000892 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1729 21St St NW, Washington, DC 20009
- Phone
- (202) 234-0903
- Enumerated
- Oct 25, 2012
- Record last updated
- Jan 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1729 21St St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arielle Bernstein, PSYDClinical Psychologist1437780459
- John Della Porta, PSYDClinical Psychologist1508484007
- John Dennis, PH.D.Clinical Psychologist1033400247
- Gareth Harrison, PSYDCognitive & Behavioral Psychologist1760253892
- Hyejin Jin, PHDClinical Psychologist1710645593
- Jeffrey Mann, PSYDClinical Psychologist1780837278
Verify Lillian De Petrillo 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 PSY1000892Check 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 Lillian De Petrillo, PHD's NPI number?
Lillian De Petrillo, PHD's National Provider Identifier (NPI) is 1962755157, issued on Oct 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Lillian De Petrillo, PHD located?
The NPPES record lists a practice address at 1729 21St St NW, Washington, DC, 20009. Phone: (202) 234-0903. Providers update this record themselves, so call before visiting.
How can I verify Lillian De Petrillo, PHD's license?
NPPES lists District of Columbia license number PSY1000892, 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.