Romualdo Enrique Diaz, MD
Family Medicine Physician · Huntsville, AL
Romualdo Enrique Diaz, MD is a family medicine physician with a practice address in Huntsville, Alabama, and NPI 1134531528, issued on May 20, 2014. Check the license (Alabama MD36274, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Romualdo Enrique Diaz
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD36274 AL
Self-reported in NPPES; status is on the state search - Practice location
- 813 Franklin St SE, Huntsville, AL 35801
- Phone
- (256) 519-3650
- Enumerated
- May 20, 2014
- Record last updated
- Jul 21, 2022
- Fax
- (256) 585-6713
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,996 in Alabama → Look up another NPI →
Also registered at 813 Franklin St SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Romualdo Enrique Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license MD36274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
15 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Romualdo Enrique Diaz among 1,996 family medicine physician records in Alabama
Romualdo Enrique Diaz, MD is one of 1,996 family medicine physician records with a practice address in Alabama. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 69% of them.
- NPI issued2014 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2022 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 family medicine physician records list a practice address in Huntsville
They are 168 of the 5,555 NPPES records with a practice address in Huntsville, and 1,996 family medicine physician records in Alabama.
All 1,996 in Alabama → Every provider in Huntsville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Blankenship, DOHuntsville, AL 358011013994342
- David Calderwood, MDHuntsville, AL 358011235110586
- Michael Carter, M.D.Huntsville, AL 358011427045152
- James Chambers, M.D.Huntsville, AL 358011598765588
- Norman Ervin, M. D.Huntsville, AL 358011821089012
- Tobin Fisher, MDHuntsville, AL 358011447231014
- Forest Herrington, MDHuntsville, AL 358011417938085
- Herbert Holdsambeck, MDHuntsville, AL 358011649251216
Common questions
What is Romualdo Enrique Diaz, MD's NPI number?
Romualdo Enrique Diaz, MD's National Provider Identifier (NPI) is 1134531528, issued on May 20, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Romualdo Enrique Diaz, MD located?
The NPPES record lists a practice address at 813 Franklin St SE, Huntsville, AL, 35801. Phone: (256) 519-3650. Providers update this record themselves, so call before visiting.
How can I verify Romualdo Enrique Diaz, MD's license?
NPPES lists Alabama license number MD36274, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Romualdo Enrique Diaz, MD prescribe under Medicare Part D?
In 2024, Romualdo Enrique Diaz, MD had 15 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.