Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Tanya Griselle Island, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1083861066

Tanya Griselle Island, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Houston, Texas. Qualified in 2008, 18 years ago. Practices with Scott and White Clinic, a 2,429-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Kentucky and Texas.

Years since qualifying
18
Licensed in
KY, TX
In the registry since
2008
Specialties on file
2
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

6720 Bertner Ave
Houston, TX 77030
Phone: (832) 355-2666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 200 Abraham Flexner Way, Louisville, KY 40202-2877 — (502) 587-4404
  • 700 Scott And White Dr, College Station, TX 77845-6441 — (254) 724-2111
  • 1500 Citywest Blvd, Houston, TX 77042-2300 — (713) 620-4000
  • 800 E Dawson St, Tyler, TX 75701-2036 — (903) 606-4522

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence AP120147 (TX)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 3018211 (KY)

Record details

NPI number1083861066
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedAugust 21, 2008
Last updated in NPPESJune 11, 2025
Certification dateJune 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Scott And White Clinic — 2429 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients117
Services billed 119 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Baylor Scott & White Medical Center- College Stati Hospital · College Station, TX
  • Memorial Hermann Katy Hospital Hospital · Katy, TX

Colleagues at Scott and White Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2429 clinicians in the practice; 12 are shown here.

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