Maureen O'Kane Grissom, PH.D.
Clinical Psychologist · Houston, TX
Maureen O'Kane Grissom, PH.D. is a clinical psychologist with a practice address in Houston, Texas, and NPI 1144411513, issued on Aug 9, 2007. Check the license (Texas 38769, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maureen O'Kane Grissom
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- 38769 TX
2006034116 MO
Self-reported in NPPES; status is on the state search - Practice location
- Health 2, 4349 Martin Luther King Blvd Suite 1001E, Houston, TX 77204
- Phone
- (713) 743-9682
- Enumerated
- Aug 9, 2007
- Record last updated
- Aug 31, 2022
- Fax
- (713) 743-1049
- Medicare enrollment
- Enrolled (PECOS I20210602000821); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,732 in Texas → Look up another NPI →
Also registered at Health 2, 4349 Martin Luther King Blvd Suite 1001E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bhavna Lall, MD, MPHInternal Medicine Physician1538336250
- Steven Starks, M.D.Psychiatry Physician1992038889
Verify Maureen O'Kane Grissom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 38769Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- UH HealthHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maureen O'Kane Grissom among 2,732 clinical psychologist records in Texas
Maureen O'Kane Grissom, PH.D. is one of 2,732 clinical psychologist records with a practice address in Texas. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 28% of them.
- NPI issued2007 · 28% of these records are older, 58% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 22% of these records are
- Graduated2005 · median 2006 among the 598 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Texas
There are 2,732 clinical psychologist records in Texas.
All 2,732 in Texas → Every provider in Houston → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- James Bray, PHDHouston, TX 772041710067145
- Emily Dudek, LPAHouston, TX 772041376499707
- Sara Elkins, BAHouston, TX 772041740446319
- Jorge Gonzalez, PH.D.Houston, TX 772041881380129
- Brenda Padilla, PSYDHouston, TX 772041518120112
- Ashley Smith, M.S., PSYDHouston, TX 772041750870218
- Lisa Satterfield, PHDConroe, TX 773011457750994
- Janet Peterson, PH.DConroe, TX 773021487807947
Common questions
What is Maureen O'Kane Grissom, PH.D.'s NPI number?
Maureen O'Kane Grissom, PH.D.'s National Provider Identifier (NPI) is 1144411513, issued on Aug 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maureen O'Kane Grissom, PH.D. located?
The NPPES record lists a practice address at Health 2, 4349 Martin Luther King Blvd Suite 1001E, Houston, TX, 77204. Phone: (713) 743-9682. Providers update this record themselves, so call before visiting.
How can I verify Maureen O'Kane Grissom, PH.D.'s license?
NPPES lists Texas license number 38769, as entered by the provider. Search the Texas 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. Medicare files from data.cms.gov. 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.