Fernando Cristobal Diaz, MD
Hematology & Oncology Physician · McAllen, TX
Fernando Cristobal Diaz, MD is a hematology & oncology physician with a practice address in McAllen, Texas, and NPI 1902333545, issued on May 14, 2017. Check the license (Texas V2724, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Fernando Cristobal Diaz
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- V2724 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5137 Lost Creek LN, McAllen, TX 78504
- Phone
- (919) 966-1996
- Enumerated
- May 14, 2017
- Record last updated
- Sep 12, 2024
- Fax
- (919) 966-6735
- Medicare enrollment
- Enrolled (PECOS I20240920000541); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 922 in Texas → Look up another NPI →
Verify Fernando Cristobal Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license V2724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
438 Medicare Part D claims for 96 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Mirtazapine33 claims
- Gabapentin23 claims
- Metoprolol Succinate23 claims
- Levothyroxine Sodium19 claims
- Atorvastatin Calcium17 claims
- Losartan Potassium16 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.
Industry payments in 2024: $61.41
3 payments; by number, the most common kind was food and beverage; the largest payer was Tempus AI, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Texas Oncology PAMcAllen, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Fernando Cristobal Diaz among 922 hematology & oncology physician records in Texas
Fernando Cristobal Diaz, MD is one of 922 hematology & oncology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 88% of them.
- NPI issued2017 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2011 · median 2004 among the 691 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Texas
There are 922 hematology & oncology physician records in Texas.
All 922 in Texas → Every provider in McAllen → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Raghad Abdul-Karim, MDMcAllen, TX 785041114207172
- Eugenio Galindo, M.D.McAllen, TX 785041174599948
- Paul Holoye, M. D.McAllen, TX 785041497716401
- Juan Bernini, MDMcAllen, TX 785031376623793
- Marcelo Boek, M.D.McAllen, TX 785031134166788
- Ghanem Daghestani, MDMcAllen, TX 785031295793768
- Jasmine GowartyMcAllen, TX 785031003263732
- Nurul Wahid, M.D.McAllen, TX 785031508808619
Common questions
What is Fernando Cristobal Diaz, MD's NPI number?
Fernando Cristobal Diaz, MD's National Provider Identifier (NPI) is 1902333545, issued on May 14, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Fernando Cristobal Diaz, MD located?
The NPPES record lists a practice address at 5137 Lost Creek LN, McAllen, TX, 78504. Phone: (919) 966-1996. Providers update this record themselves, so call before visiting.
How can I verify Fernando Cristobal Diaz, MD's license?
NPPES lists Texas license number V2724, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Fernando Cristobal Diaz, MD prescribe under Medicare Part D?
In 2024, Fernando Cristobal Diaz, MD had 438 Medicare Part D claims for 96 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.