MR. HENRY R. GRAY
NPI 1033557111
Counselor - Addiction (Substance Use Disorder) in Venice, CA
About Mr. Henry R. Gray NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. HENRY R. GRAY (NPI 1033557111) is an individual addiction (substance use disorder) provider in Venice, California and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2014).
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. Henry R. Gray is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Henry Gray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VENICE, CA 90291
VENICE, CA 90291
VENICE, CA 90291
VENICE, CA 90291
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 Henry Gray's NPI number?
The NPI number for Henry Gray is 1033557111. It was assigned to this individual provider in the NPPES registry on June 11, 2013.
Where is Henry Gray located?
Henry Gray practices at 503 Ocean Front Walk, Venice, CA 90291. The listed phone number is (310) 392-3070.
What is Henry Gray's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.
Is Henry Gray enrolled in Medicare?
Yes. Henry Gray is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Henry Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Henry Gray reassigns Medicare benefits to Southern California Permanente Medical Group (Los Angeles, CA). 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 Henry Gray'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 Henry Gray was last updated on September 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Henry R. Gray · NPI 1033557111
Addiction (Substance Use Disorder) provider in Venice, California. Individual provider, active in the CMS NPPES registry since June 11, 2013.
## Identity
- **NPI:** 1033557111 (Entity type: Individual)
- **Enumerated:** June 11, 2013
- **Primary specialty:** Counselor - Addiction (Substance Use Disorder) · taxonomy 101YA0400X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 503 OCEAN FRONT WALK, Venice, CA 90291-2403
- **Phone:** (310) 392-3070
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** September 21, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1033557111) · Data from the CMS NPPES public registry.