Mary Joy Kolb, PH.D.
Cognitive & Behavioral Psychologist · Gaithersburg, MD
Mary Joy Kolb, PH.D. is a cognitive & behavioral psychologist with a practice address in Gaithersburg, Maryland, and NPI 1013245901, issued on Dec 3, 2009. Check the license (Maryland 04764, 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 Joy Kolb
- Credential
- PH.D.
- Primary taxonomy
- Cognitive & Behavioral Psychologist 103TB0200X
- License number
- 04764 MD
Self-reported in NPPES; status is on the state search - Practice location
- 220 Main St, Gaithersburg, MD 20878
- Phone
- (240) 252-4105
- Enumerated
- Dec 3, 2009
- Record last updated
- Jul 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 220 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Joy Kolb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 04764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cognitive & Behavioral Psychologist providers in Maryland
There are 54 cognitive & behavioral psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other cognitive & behavioral psychologist records in Maryland
- Paula AdairAdelphi, MD1922989227
- Adrianna Amari, PH.D.Baltimore, MD1295050938
- Kallissa Bailey-NorthrupBaltimore, MD1891599452
- Lise Becker Vezina, PHDBethesda, MD1013001304
- Elspeth Bell, PH.D.Columbia, MD1548429640
- Melissa Blanock, PSY.D.Catonsville, MD1235499690
- Kira Bricker, PH.D.Rockville, MD1760630768
- Patricia Brierley-Bowers, PHDBaltimore, MD1871528497
- Bonnie Bryant, PHDFort Washington, MD1760429088
- Michael Cataldo, PH.D.Baltimore, MD1235336231
Common questions
What is Mary Joy Kolb, PH.D.'s NPI number?
Mary Joy Kolb, PH.D.'s National Provider Identifier (NPI) is 1013245901, issued on Dec 3, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Joy Kolb, PH.D. located?
The NPPES record lists a practice address at 220 Main St, Gaithersburg, MD, 20878. Phone: (240) 252-4105. Providers update this record themselves, so call before visiting.
How can I verify Mary Joy Kolb, PH.D.'s license?
NPPES lists Maryland license number 04764, 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.