Mary Katherine Gerrard, PHD
Clinical Psychologist · Columbia, MD
Mary Katherine Gerrard, PHD is a clinical psychologist with a practice address in Columbia, Maryland, and NPI 1538725452, issued on May 16, 2019. Check the license (Maryland 07383, 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
- Mary Katherine Gerrard
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 07383 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9810 Patuxent Woods Dr Ste F, Columbia, MD 21046
- Phone
- (443) 923-3871
- Enumerated
- May 16, 2019
- Record last updated
- Jun 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250903002149); may accept Medicare assignment
- Entity
- Type 1 · individual
Verify Mary Katherine Gerrard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 07383Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72 clinical psychologist records list a practice address in Columbia
They are 72 of the 6,690 NPPES records with a practice address in Columbia, and 1,499 clinical psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 72 in Columbia → All 1,499 in Maryland → Every provider in Columbia →
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 Mary Katherine Gerrard, PHD's NPI number?
Mary Katherine Gerrard, PHD's National Provider Identifier (NPI) is 1538725452, issued on May 16, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Gerrard, PHD located?
The NPPES record lists a practice address at 9810 Patuxent Woods Dr Ste F, Columbia, MD, 21046. Phone: (443) 923-3871. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Gerrard, PHD's license?
NPPES lists Maryland license number 07383, 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.