Mary Holland, PSY.D.
Psychologist · Oakbrook Terrace, IL
Mary Holland, PSY.D. is a psychologist with a practice address in Oakbrook Terrace, Illinois, and NPI 1548793672, issued on Apr 5, 2017. Check the license with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Holland
- Credential
- PSY.D.
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 17W727 Butterfield RD Ste G, Oakbrook Terrace, IL 60181
- Phone
- (630) 629-3015
- Enumerated
- Apr 5, 2017
- Record last updated
- Apr 30, 2024
- Entity
- Type 1 · individual
8 nearest psychologist records → All 1,011 in Illinois → Look up another NPI →
Verify Mary Holland in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Holland among 1,011 psychologist records in Illinois
Mary Holland, PSY.D. is one of 1,011 psychologist records with a practice address in Illinois. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2017, is newer than 63% of them.
- NPI issued2017 · 63% of these records are older, 34% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileNo · 20% of these records are
- Record last updated2024 · 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 103T00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychologist providers in Illinois
There are 1,011 psychologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,011 in Illinois → Every provider in Oakbrook Terrace → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Charlotte Greiwe, MA, LPCOakbrook Terrace, IL 601811790556918
- Donald Bishop, PSY.D.Sycamore, IL 601781851451496
- Jayne Braden, PSYDSycamore, IL 601781548301443
- Elizabeth Garcia, PH.D.Sycamore, IL 601781881358505
- Rita Bobrowski, PSY.D.West Chicago, IL 601851740478437
- Dimple Patel, PSYDWest Chicago, IL 601851871189951
- Gary Wakefield, MSW LCSW BCDSouth Elgin, IL 601771972543668
- Elmyra Walden, MA LCPCWest Chicago, IL 601851265494298
Common questions
What is Mary Holland, PSY.D.'s NPI number?
Mary Holland, PSY.D.'s National Provider Identifier (NPI) is 1548793672, issued on Apr 5, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mary Holland, PSY.D. located?
The NPPES record lists a practice address at 17W727 Butterfield RD Ste G, Oakbrook Terrace, IL, 60181. Phone: (630) 629-3015. Providers update this record themselves, so call before visiting.
How can I verify Mary Holland, PSY.D.'s license?
Search the Illinois 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.