TANYA GRISELLE ISLAND CRNA
NPI 1083861066
Nurse Anesthetist, Certified Registered in Houston, TX
About Tanya Griselle Island Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TANYA GRISELLE ISLAND CRNA (NPI 1083861066) is an individual nurse anesthetist, certified registered in Houston, Texas, licensed in Texas (AP120147) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Katy Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 5
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
Tanya Griselle Island Crna 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
24Medicare enrollment records show Tanya Island reassigns Medicare billing to 24 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 clinicians in this Medicare group
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 clinicians in this Medicare group
Webster, TX 77598
- Reassigned Medicare billing, Texas enrollment
- 543 clinicians in this Medicare group
Katy, TX 77494
- Reassigned Medicare billing, Texas enrollment
- 52 clinicians in this Medicare group
College Station, TX 77840
- Reassigned Medicare billing, Texas enrollment
- 2,795 clinicians in this Medicare group
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 clinicians in this Medicare group
Fort Worth, TX 76109
- Reassigned Medicare billing, Texas enrollment
- 1,612 clinicians in this Medicare group
Louisville, KY 40216
- Reassigned Medicare billing, Kentucky enrollment
- Medicare enrollment name: University Of Louisville Physicians Inc
- 2,337 clinicians in this Medicare group
Charlotte, NC 28277
- Reassigned Medicare billing, North Carolina enrollment
- 926 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
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.
Memorial Hermann Katy Hospital
Acute Care Hospitals · Katy, TXBaylor Scott & White Medical Center- College Stati
Acute Care Hospitals · College Station, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77030 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 Tanya Island's NPI number?
The NPI number for Tanya Island is 1083861066. It was assigned to this individual provider in the NPPES registry on August 21, 2008.
Where is Tanya Island located?
Tanya Island practices at 6720 Bertner Ave, Houston, TX 77030. The listed phone number is (832) 355-2666.
What is Tanya Island's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Tanya Island enrolled in Medicare?
Yes. Tanya Island 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 Tanya Island's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tanya Island reassigns Medicare benefits to 24 organizations: Baylor College Of Medicine (Houston, TX), U. S. Anesthesia Partners Of Texas, P.A., (Houston, TX), Texans Anesthesia Associates PLLC (Webster, TX), Southern Group Anesthesia PLLC (Katy, TX), Scott & White Clinic (College Station, TX) and 19 more organizations, listed in the Medicare section above. 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 Tanya Island's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tanya Island accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Tanya Island 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 Tanya Island affiliated with any hospitals?
According to CMS data, Tanya Island is affiliated with Memorial Hermann Katy Hospital and Baylor Scott & White Medical Center- College Stati.
When was this NPI record last updated?
The NPPES record for Tanya Island was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Tanya Griselle Island, CRNA · NPI 1083861066
Nurse Anesthetist, Certified Registered physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since August 21, 2008.
## Identity
- **NPI:** 1083861066 (Entity type: Individual)
- **Enumerated:** August 21, 2008
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** AP120147 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6720 BERTNER AVE, Houston, TX 77030
- **Phone:** (832) 355-2666
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 24 organizations under Medicare reassignment (form CMS-855R): Baylor College Of Medicine (NPI 1881026664, Houston, TX); U. S. Anesthesia Partners Of Texas, P.A., (NPI 1548208564, Houston, TX); Texans Anesthesia Associates PLLC (NPI 1275733982, Webster, TX); Southern Group Anesthesia PLLC (NPI 1720628936, Katy, TX); Scott & White Clinic (NPI 1922061993, College Station, TX); and 19 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** June 11, 2025
- **Other identifiers:** Medicaid 283763501 (TX); Medicaid 7100855390 (KY); Other 8716UB (TX); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1083861066) · Data from the CMS NPPES public registry.