Keydy Diaz, FNP-C
NPI 1972950384 · Family Nurse Practitioner · Houston, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keydy Diaz, FNP-C is a Family Nurse Practitioner provider in Houston, TX (NPI 1972950384).
Provider details
- NPI number
- 1972950384
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP130843 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
56 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $109 |
Typical Medicare-allowed amounts for these services range $109–$109 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 87 | 68 |
| Amlodipine Besylate | 58 | 43 |
| Lisinopril | 44 | 31 |
| Meloxicam | 43 | 32 |
| Metformin Hcl | 41 | 34 |
| Azithromycin | 38 | 36 |
| Levothyroxine Sodium | 34 | 23 |
Practice location
Mailing address
Additional practice locations (1)
- 10701 Vintage Preserve PkwyHouston, TX 77070-2158Phone: (713) 442-1500
Registry dates
- Enumerated
- 2016-05-16
- Last updated
- 2025-12-29
- Certified
- 2025-12-29
Frequently asked questions
- What is Keydy Diaz's NPI number?
- Keydy Diaz's National Provider Identifier (NPI) is 1972950384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keydy Diaz's specialty?
- Keydy Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Keydy Diaz located?
- Keydy Diaz's practice location on file with NPPES is 600 N Sam Houston Pkwy W Ste 650, Houston, TX 77067-4336.
- What is Keydy Diaz's phone number?
- The practice phone number listed in the NPPES registry for Keydy Diaz is (816) 544-5002.
- Does Keydy Diaz accept Medicare?
- Keydy Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keydy Diaz's NPI active?
- Yes — Keydy Diaz's NPI (1972950384) is active in the NPPES registry as of the last update on 2025-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.