Doctor profile · Federal record
Dr. Ionn Carlo Diaz, NP
Nurse Practitioner · Katy, TX
- NPI 1629603790
- Accepts Medicare
- 7 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
24285 Katy Fwy Ste 300
Katy, TX 774941327
(713) 486-5452
fax (713) 512-7104 - Mailing address
-
2902 Ashwood St
Houston, TX 770253210
Credentials & registration
- NPI registered
- March 2020 — 6 yrs on file
- Profile last updated
- July 7, 2022
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- Texas #AP145555
- Medicaid
- TX #417539001
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629603790. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,253
Distinct HCPCS
6
Medicare allowed
$139,137
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 362 | 40 | $92 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 360 | 50 | $132 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 306 | 33 | $132 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 152 | 25 | $92 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 39 | 12 | $54 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 34 | 17 | $64 |
In context: peer comparison
Among 7 peers in Katy Nurse Practitioner, average services per provider: 174. This provider delivers 7.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
857
Patients
150
Total drug cost
$45,295
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 118 | 21 | $673 |
| Potassium Chloride | Generic | 98 | 21 | $1,406 |
| Atorvastatin Calcium | Generic | 74 | 17 | $684 |
| Levothyroxine Sodium | Generic | 67 | 15 | $784 |
| Gabapentin | Generic | 61 | 13 | $799 |
| Divalproex Sodium | Generic | 53 | 0 | $2,369 |
| Jardiance (Empagliflozin) | Brand | 53 | 0 | $15,684 |
| Lactulose | Generic | 52 | 17 | $1,883 |
| Losartan Potassium | Generic | 46 | 0 | $481 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 42 | 0 | $6,407 |
Frequently asked questions
What is Dr. Ionn Carlo Diaz's medical specialty?
Dr. Ionn Carlo Diaz practices Nurse Practitioner in Katy, TX.
Where does Dr. Ionn Carlo Diaz practice?
Dr. Ionn Carlo Diaz practices at 24285 Katy Fwy Ste 300, Katy, TX 774941327. Office phone: 7134865452.
What is Dr. Ionn Carlo Diaz's NPI?
Dr. Ionn Carlo Diaz's National Provider Identifier (NPI) is 1629603790, issued by NPPES.
Does Dr. Ionn Carlo Diaz accept Medicare assignment?
Yes. Dr. Ionn Carlo Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ionn Carlo Diaz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Subsequent nursing facility care with high level of medical decision making (HCPCS 99310). Source: CMS Medicare Physician & Other Practitioners file.