MR. MATTHEW MASON PH.D.
NPI 1871615559
Psychologist - Clinical in Columbia, MD
About Mr. Matthew Mason Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MATTHEW MASON PH.D. (NPI 1871615559) is an individual clinical provider in Columbia, Maryland, licensed in Maryland (03933) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Matthew Mason Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Matthew Mason reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Halethorpe, MD 21227
- Reassigned Medicare billing, Maryland enrollment
- 1,253 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COLUMBIA, MD 21045
COLUMBIA, MD 21045
COLUMBIA, MD 21045
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Matthew Mason's NPI number?
The NPI number for Matthew Mason is 1871615559. It was assigned to this individual provider in the NPPES registry on April 4, 2007.
Where is Matthew Mason located?
Matthew Mason practices at 5525 Twin Knolls Rd Suite 327, Columbia, MD 21045. The listed phone number is (410) 992-9149.
What is Matthew Mason's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Matthew Mason enrolled in Medicare?
Yes. Matthew Mason is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Matthew Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Mason reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Halethorpe, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Matthew Mason was last updated on July 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Matthew Mason, PH.D. · NPI 1871615559
Clinical provider in Columbia, Maryland. Individual provider, active in the CMS NPPES registry since April 4, 2007.
## Identity
- **NPI:** 1871615559 (Entity type: Individual)
- **Enumerated:** April 4, 2007
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** 03933 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 5525 TWIN KNOLLS RD, SUITE 327, Columbia, MD 21045-3266
- **Phone:** (410) 992-9149 · **Fax:** (410) 992-9921
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1417294984, Halethorpe, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 25, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1871615559) · Data from the CMS NPPES public registry.