George Marshall Cowan, PSY.D.
Clinical Psychologist · Jessup, MD
George Marshall Cowan, PSY.D. is a clinical psychologist with a practice address in Jessup, Maryland, and NPI 1215283833, issued on Aug 1, 2012. Check the license (Maryland 04056, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- George Marshall Cowan
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 04056 MD
Self-reported in NPPES; status is on the state search - Practice location
- 8450 Dorsey Run RD, Jessup, MD 20794
- Phone
- (410) 724-3067
- Enumerated
- Aug 1, 2012
- Record last updated
- Jun 29, 2026
- Entity
- Type 1 · individual
Also registered at 8450 Dorsey Run RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ama Abban, PMHNPPsychiatric/Mental Health Nurse Practitioner1184488017
- Uchenna Achebe, M.D.Student in an Organized Health Care Education/Training Program1578829081
- Ebunoluwa AkinduroPsychiatric/Mental Health Nurse Practitioner1235841495
- Laura BainRegistered Dietitian1922949460
- Rehema Barnett, LMSWSocial Worker1134048556
- Mark Bickley, PHARMDPharmacist1447804711
Verify George Marshall Cowan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 04056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4 clinical psychologist records list a practice address in Jessup
They are 4 of the 117 NPPES records with a practice address in Jessup, and 1,499 clinical psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4 in Jessup → All 1,499 in Maryland → Every provider in Jessup →
Other clinical psychologist records in Maryland
- Rachel Aaron, PHDBaltimore, MD1003294232
- Adriana Abadi, PSYDBethesda, MD1396534293
- Rebecca Abell, PSY.D.Kensington, MD1184075822
- Ariella Abraham, PSY.D.Lutherville, MD1629214671
- Munazza Abraham, PHDBaltimore, MD1922831361
- Sherri Abraham, PSYDOwings Mills, MD1427134642
- Alexander Abramowicz, PSYDAnnapolis, MD1558973503
- Karen Abrams, PHDKensington, MD1639517014
- Elise Abromson, PSY.D.Frederick, MD1194906180
- Amy Ackerman, PHDAnnapolis, MD1871257774
Common questions
What is George Marshall Cowan, PSY.D.'s NPI number?
George Marshall Cowan, PSY.D.'s National Provider Identifier (NPI) is 1215283833, issued on Aug 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is George Marshall Cowan, PSY.D. located?
The NPPES record lists a practice address at 8450 Dorsey Run RD, Jessup, MD, 20794. Phone: (410) 724-3067. Providers update this record themselves, so call before visiting.
How can I verify George Marshall Cowan, PSY.D.'s license?
NPPES lists Maryland license number 04056, as entered by the provider. Search the Maryland 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.