DR. MATTHEW L GRAY PHARMD, DO
NPI 1922412170
Anesthesiology in Greenwood Village, CO
About Dr. Matthew L Gray Pharmd, Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW L GRAY PHARMD, DO (NPI 1922412170) is an individual anesthesiology provider in Greenwood Village, Colorado, licensed in Colorado (DR.0061488) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Saint Mary's Regional Medical Center, and is a graduate of Rocky Vista University College Of Osteopathic Med (2014).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Matthew L Gray Pharmd, Do 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 Matthew Gray reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Reno, NV 89511
- Reassigned Medicare billing, Nevada enrollment
- 53 clinicians in this Medicare group
Reno, NV 89503
- Reassigned Medicare billing, Nevada enrollment
- 60 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Mary's Regional Medical Center
Acute Care Hospitals · Reno, NVNorthern Nevada Medical Center
Acute Care Hospitals · Sparks, NVOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
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 Gray's NPI number?
The NPI number for Matthew Gray is 1922412170. It was assigned to this individual provider in the NPPES registry on June 16, 2014.
Where is Matthew Gray located?
Matthew Gray practices at 8000 E Maplewood Ave Ste 200, Greenwood Village, CO 80111. The listed phone number is (303) 785-4700.
What is Matthew Gray's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Matthew Gray enrolled in Medicare?
Yes. Matthew 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 Matthew Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Gray reassigns Medicare benefits to 2 organizations: Reno Tahoe Anesthesia Weaver PC (Reno, NV) and Metcalf, Tiller & Chen, Inc. (Reno, NV). 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 Matthew Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Gray accept?
Health plans from Oscar Health and Oscar Insurance Company list Matthew 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.
Is Matthew Gray affiliated with any hospitals?
According to CMS data, Matthew Gray is affiliated with Saint Mary's Regional Medical Center and Northern Nevada Medical Center.
When was this NPI record last updated?
The NPPES record for Matthew Gray was last updated on January 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dr. Matthew L Gray, PHARMD, DO · NPI 1922412170
Anesthesiology physician in Greenwood Village, Colorado. Individual provider, active in the CMS NPPES registry since June 16, 2014.
## Identity
- **NPI:** 1922412170 (Entity type: Individual)
- **Enumerated:** June 16, 2014
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** DR.0061488 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 8000 E MAPLEWOOD AVE STE 200, Greenwood Village, CO 80111-4727
- **Phone:** (303) 785-4700
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Reno Tahoe Anesthesia Weaver PC (NPI 1548816895, Reno, NV); Metcalf, Tiller & Chen, Inc. (NPI 1811237431, Reno, NV) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rocky Vista University College Of Osteopathic Med, class of 2014
## Record status
- **NPPES last updated:** January 23, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1922412170) · Data from the CMS NPPES public registry.