Doctor profile · Federal record
Dr. Gillian Ruiz, RD
Registered Dietitian (CMS: Registered Dietitian or Nutrition Professional) · Oro Valley, AZ
- NPI 1598496622
- Accepts Medicare
- 5 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1846 E Innovation Park Dr
Oro Valley, AZ 857551963
(520) 477-1650
fax (520) 829-3551 - Mailing address
-
7833 E Highview Pl
Tucson, AZ 857502319
Credentials & registration
- NPI registered
- June 2022 — 4 yrs on file
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 133V00000X — NUCC code
- State license (1)
- Texas #86325355
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598496622. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
145
Distinct HCPCS
2
Medicare allowed
$4,050
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
97803 |
Therapy procedure reassessment for nutrition management, each 15 minutes | 83 | 14 | $26 | |
97802 |
Therapy procedure for nutrition management, each 15 minutes | 62 | 16 | $30 |
In context: peer comparison
Among 1 peers in Oro Valley Registered Dietitian, average services per provider: 72. This provider delivers 2.0× the peer median.Frequently asked questions
What is Dr. Gillian Ruiz's medical specialty?
Dr. Gillian Ruiz practices Registered Dietitian in Oro Valley, AZ.
Where does Dr. Gillian Ruiz practice?
Dr. Gillian Ruiz practices at 1846 E Innovation Park Dr, Oro Valley, AZ 857551963. Office phone: 5204771650.
What is Dr. Gillian Ruiz's NPI?
Dr. Gillian Ruiz's National Provider Identifier (NPI) is 1598496622, issued by NPPES.
Does Dr. Gillian Ruiz accept Medicare assignment?
Yes. Dr. Gillian Ruiz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gillian Ruiz commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure reassessment for nutrition management (HCPCS 97803); Therapy procedure for nutrition management (HCPCS 97802). Source: CMS Medicare Physician & Other Practitioners file.