GREGORY HARRIS
NPI 1710352471
Counselor - Professional in Columbia, MD
About Gregory Harris NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY HARRIS (NPI 1710352471) is an individual professional provider in Columbia, Maryland, licensed in Maryland (LC6471) and active in the NPI registry since December 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2013).
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 and accepts Medicare assignment
Gregory Harris is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Gregory Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Columbia, MD 21045
- Reassigned Medicare billing, Maryland enrollment
- 132 clinicians in this Medicare group
Baltimore, MD 21218
- Reassigned Medicare billing, Maryland enrollment
- 143 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Gregory Harris's NPI number?
The NPI number for Gregory Harris is 1710352471. It was assigned to this individual provider in the NPPES registry on December 7, 2015.
Where is Gregory Harris located?
Gregory Harris practices at 9030 Route 108 Suite A, Columbia, MD 21045. The listed phone number is (410) 740-1901.
What is Gregory Harris's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Gregory Harris enrolled in Medicare?
Yes. Gregory Harris is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Harris's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Harris reassigns Medicare benefits to 2 organizations: Way Station Inc (Columbia, MD) and Mosaic Community Services, Inc (Baltimore, MD). Each 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 Gregory Harris'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 Gregory Harris was last updated on December 7, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Gregory Harris · NPI 1710352471
Professional provider in Columbia, Maryland. Individual provider, active in the CMS NPPES registry since December 7, 2015.
## Identity
- **NPI:** 1710352471 (Entity type: Individual)
- **Enumerated:** December 7, 2015
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **State license:** LC6471 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9030 ROUTE 108, SUITE A, Columbia, MD 21045-1990
- **Phone:** (410) 740-1901
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Way Station Inc (NPI 1104914464, Columbia, MD); Mosaic Community Services, Inc (NPI 1598084626, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** December 7, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1710352471) · Data from the CMS NPPES public registry.