Keydy Diaz, FNP-C
Family Nurse Practitioner · Houston, TX
Keydy Diaz, FNP-C is a family nurse practitioner with a practice address in Houston, Texas, and NPI 1972950384, issued on May 16, 2016. Check the license (Texas AP130843, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Keydy Diaz
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP130843 TX
Self-reported in NPPES; status is on the state search - Practice location
- 600 N Sam Houston Pkwy W Ste 650, Houston, TX 77067
- Phone
- (816) 544-5002
- Enumerated
- May 16, 2016
- Record last updated
- Dec 29, 2025
- Fax
- (281) 654-4501
- Medicare enrollment
- Enrolled (PECOS I20160603000369); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 21,242 in Texas → Look up another NPI →
Also registered at 600 N Sam Houston Pkwy W Ste 650
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Carruthers, M.D.Internal Medicine Physician1972504967
- John Pang, D.O.Family Medicine Physician1689693640
Verify Keydy Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license AP130843Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,294 Medicare Part D claims for 390 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium87 claims
- Amlodipine Besylate58 claims
- Lisinopril44 claims
- Meloxicam43 claims
- Metformin Hcl41 claims
- Azithromycin38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Kelsey-Seybold Medical Group, PLLCHouston, TX
- Wellmed Medical Group PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keydy Diaz among 21,242 family nurse practitioner records in Texas
Keydy Diaz, FNP-C is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 31% of them.
- NPI issued2016 · 31% of these records are older, 64% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2015 · median 2018 among the 11,286 with a school on file
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,588 family nurse practitioner records list a practice address in Houston
They are 2,588 of the 61,221 NPPES records with a practice address in Houston, and 21,242 family nurse practitioner records in Texas.
All 21,242 in Texas → Every provider in Houston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Lucas Egebe, FNPHouston, TX 770671053666990
- Anita Habib, NP, APRN, RNHouston, TX 770671467816181
- Karimot Isiaka, FNP-CHouston, TX 770671164814331
- Neelam Momin, APRN, FNP-CHouston, TX 770671013425321
- Farah MominHouston, TX 770671124802665
- Thuy-Van Nguyen, NP-CHouston, TX 770671962438333
- Hong Nguyen, APRNHouston, TX 770671649759952
- Alexandria Nwaozuru, FNP-CHouston, TX 770671407216146
Common questions
What is Keydy Diaz, FNP-C's NPI number?
Keydy Diaz, FNP-C's National Provider Identifier (NPI) is 1972950384, issued on May 16, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Keydy Diaz, FNP-C located?
The NPPES record lists a practice address at 600 N Sam Houston Pkwy W Ste 650, Houston, TX, 77067. Phone: (816) 544-5002. Providers update this record themselves, so call before visiting.
How can I verify Keydy Diaz, FNP-C's license?
NPPES lists Texas license number AP130843, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Keydy Diaz, FNP-C prescribe under Medicare Part D?
In 2024, Keydy Diaz, FNP-C had 1,294 Medicare Part D claims for 390 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.