Provider Profile
Ionn Carlo Y. Diaz, NP
Unclaimed ProfileAbout Ionn Carlo Diaz
Ionn Carlo Y. Diaz, NP is a nurse practitioner based in Katy, TX. According to Medicare claims data, Ionn Carlo cared for 206 Medicare patients across 988 services. The services billed most often include subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes, subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, and subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes. The provider's National Provider Identifier (NPI) is 1629603790.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (713) 486-5452
- Email not available
Practice Locations
24285 KATY FWY STE 300
Katy, TX 77494
Procedures Most Often Billed to Medicare
988 services · 206 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
487 | More than most peers in Nurse Practitioner |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
180 | As often as other peers in Nurse Practitioner |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
112 | More than most peers in Nurse Practitioner |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
56 | Less often than most peers in Nurse Practitioner |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
41 | Less often than most peers in Nurse Practitioner |
| Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month | Office visit | 99491 |
38 | Less often than most peers in Nurse Practitioner |
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99439 |
37 | Less often than most peers in Nurse Practitioner |
| Advance care planning, first 30 minutes | Office visit | 99497 |
13 | Less often than most peers in Nurse Practitioner |
| Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for prev | Billing code | G0513 |
12 | Too few peers to compare |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
12 | Less often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other nurse practitioners in Katy 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Ionn Carlo Y. Diaz specialize in?
Ionn Carlo Y. Diaz is a nurse practitioner in Katy, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Ionn Carlo Y. Diaz located?
Ionn Carlo Y. Diaz is listed at 24285 Katy Fwy Ste 300, Katy, TX 77494. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Ionn Carlo Y. Diaz's phone number?
The number on file is (713) 486-5452. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Ionn Carlo Y. Diaz's NPI number?
Ionn Carlo Y. Diaz's National Provider Identifier is 1629603790. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Ionn Carlo Y. Diaz train?
Ionn Carlo Y. Diaz attended Other, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Ionn Carlo Y. Diaz been practicing?
Ionn Carlo Y. Diaz has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What does Ionn Carlo Y. Diaz do most often?
According to Medicare billing data, Ionn Carlo Y. Diaz the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Ionn Carlo Y. Diaz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Ionn Carlo Y. Diaz. If this is you, claiming it is free.
Guide.md
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