MARISSA ERIN GRAY OD
NPI 1083458178
Optometrist in Humble, TX
About Marissa Erin Gray Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA ERIN GRAY OD (NPI 1083458178) is an individual optometrist in Humble, Texas, licensed in Texas (11197TG) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS and is a graduate of University Of Houston - College Of Optometry (2024).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Marissa Erin Gray Od 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 Marissa Gray reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77025
- Reassigned Medicare billing, Texas enrollment
- 1,649 clinicians in this Medicare group
Bellaire, TX 77401
- Reassigned Medicare billing, Texas enrollment
- 29 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 77396 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Marissa Gray's NPI number?
The NPI number for Marissa Gray is 1083458178. It was assigned to this individual provider in the NPPES registry on June 24, 2024.
Where is Marissa Gray located?
Marissa Gray practices at 8503 N Sam Houston Pkwy E, Humble, TX 77396. The listed phone number is (346) 674-3500.
What is Marissa Gray's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Marissa Gray enrolled in Medicare?
Yes. Marissa Gray 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 Marissa Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Gray reassigns Medicare benefits to 2 organizations: Kelsey-Seybold Medical Group, PLLC (Houston, TX) and Eye Center Of Texas LLP (Bellaire, TX). 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 Marissa Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marissa Gray accept?
Health plans from UnitedHealthcare list Marissa Gray as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marissa Gray was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Marissa Erin Gray, OD · NPI 1083458178
Optometrist provider in Humble, Texas. Individual provider, active in the CMS NPPES registry since June 24, 2024.
## Identity
- **NPI:** 1083458178 (Entity type: Individual)
- **Enumerated:** June 24, 2024
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 11197TG (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 8503 N SAM HOUSTON PKWY E, Humble, TX 77396-2925
- **Phone:** (346) 674-3500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Kelsey-Seybold Medical Group, PLLC (NPI 1013915255, Houston, TX); Eye Center Of Texas LLP (NPI 1720174485, Bellaire, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Houston - College Of Optometry, class of 2024
## Record status
- **NPPES last updated:** August 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1083458178) · Data from the CMS NPPES public registry.