DR. IGA N GRAY MD, PHD
NPI 1033538350
Ophthalmology in Vista, CA
About Dr. Iga N Gray Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IGA N GRAY MD, PHD (NPI 1033538350) is an individual ophthalmology provider in Vista, California, licensed in California (A174875) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Other (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. Iga N Gray Md, Phd 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
4Medicare enrollment records show Iga Gray reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
La Mesa, CA 91942
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Berwyn, PA 19312
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 clinicians in this Medicare group
Philadelphia, PA 19145
- Reassigned Medicare billing, Pennsylvania enrollment
- 13 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92083 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 20
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 Iga Gray's NPI number?
The NPI number for Iga Gray is 1033538350. It was assigned to this individual provider in the NPPES registry on April 15, 2014.
Where is Iga Gray located?
Iga Gray practices at 780 Shadowridge Dr, Vista, CA 92083. The listed phone number is (800) 448-6767.
What is Iga Gray's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Iga Gray enrolled in Medicare?
Yes. Iga 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 Iga Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Iga Gray reassigns Medicare benefits to 4 organizations: Southern California Permanente Medical Group (San Diego, CA), Alvarado Eye Associates Med Clinic Inc (La Mesa, CA), University Of Penn-Medical Group (Berwyn, PA) and Philadelphia Eye Associates (Philadelphia, PA). 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 Iga Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Iga Gray accept?
Health plans from Providence Health Plan list Iga 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 Iga Gray was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Iga N Gray, MD, PHD · NPI 1033538350
Ophthalmology physician in Vista, California. Individual provider, active in the CMS NPPES registry since April 15, 2014.
## Identity
- **NPI:** 1033538350 (Entity type: Individual)
- **Enumerated:** April 15, 2014
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A174875 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 780 SHADOWRIDGE DR, Vista, CA 92083-7986
- **Phone:** (800) 448-6767
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); Alvarado Eye Associates Med Clinic Inc (NPI 1619973591, La Mesa, CA); University Of Penn-Medical Group (NPI 1396133559, Berwyn, PA); Philadelphia Eye Associates (NPI 1922009596, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** July 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1033538350) · Data from the CMS NPPES public registry.