MR. ROMUALDO ENRIQUE DIAZ MD
NPI 1134531528
Family Medicine in Huntsville, AL

Q: What is Romualdo Diaz's NPI number?

The NPI number for Romualdo Diaz is 1134531528. It was assigned to this individual provider in the NPPES registry on May 20, 2014.

Q: What is Romualdo Diaz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Romualdo Diaz was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 20, 2014PECOS Enrolled

813 FRANKLIN ST SE, HUNTSVILLE, AL 35801(256) 519-3650(256) 585-6713 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Apr 15, 2019, Feb 26, 2018 and 1 more (4 updates tracked since 2017).

On this page

About Mr. Romualdo Enrique Diaz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. ROMUALDO ENRIQUE DIAZ MD (NPI 1134531528) is an individual family medicine provider in Huntsville, Alabama, licensed in Alabama (MD36274) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS and maintains a secondary practice location in Madison.

NPPES Registry Identity

NPI1134531528

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameMR. ROMUALDO ENRIQUE DIAZCredential: MD

Location Address813 FRANKLIN ST SEHuntsville, AL 35801-4311

Mailing Address104 Spenryn DrMadison, AL 35758-1890 · (256) 772-4300 · Fax (256) 772-4302

Phone(256) 519-3650

Fax(256) 585-6713

Sole ProprietorNo

Enumeration DateMay 20, 2014

Last NPPES UpdateJuly 21, 20224 updates tracked since enumeration

✔ NPI 1134531528 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in AL · MD36274

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

813 FRANKLIN ST SE, Huntsville, AL 35801

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Secondary Practice Location 1

Location 1104 Spenryn DrMadison, AL 35758-1890 · Phone (256) 772-4300 · Fax (256) 772-4302

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Romualdo Enrique Diaz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Romualdo Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Happi Health

Same address

Federally Qualified Health Center (FQHC)

813 FRANKLIN ST SE
Huntsville, AL 35801

Reassigned Medicare billing, Alabama enrollment
25 clinicians in this Medicare group

NPI 1528580404 (256) 519-3650

American Family Care, LLC

3.9 mi

Primary Care

4550 UNIVERSITY DRIVE
Huntsville, AL 35816

Reassigned Medicare billing, Alabama enrollment
660 clinicians in this Medicare group

NPI 1912006735 (256) 713-0560

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 35801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$81.90 typical visit price

range $52.65 – $161.63

Typical copayment $20.47 (range $13.16 – $40.40)

Most-billed visit code 99203

Established Patient

$93.72 typical visit price

range $16.56 – $131.65

Typical copayment $23.43 (range $4.14 – $32.91)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

YEOW CHYE NG CRNP

Nurse Practitioner (Family)

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

HAPPI INC

Pediatrics

813 FRANKLIN ST SE, SUITE B
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

ASHLEE MARIE PRICE

Nurse Practitioner (Family)

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 207-5876

TONYA M FREEMAN CRNP

Nurse Practitioner

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

DR. GEORGE M. KYLE M.D.

Family Medicine

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

LILLIAN COCKRELL CRNP

Nurse Practitioner (Family)

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

PRINCESS SHANELL OSBY MSW

Social Worker

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

HAPPI HEALTH

Clinic/Center (Federally Qualified Health Center (FQHC))

813 FRANKLIN ST SE
HUNTSVILLE, AL 35801

Madison County (256) 519-3650

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Romualdo Diaz's NPI number?

The NPI number for Romualdo Diaz is 1134531528. It was assigned to this individual provider in the NPPES registry on May 20, 2014.

Where is Romualdo Diaz located?

Romualdo Diaz practices at 813 Franklin St SE, Huntsville, AL 35801. The listed phone number is (256) 519-3650.

What is Romualdo Diaz's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Romualdo Diaz enrolled in Medicare?

Yes. Romualdo Diaz is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Romualdo Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Romualdo Diaz reassigns Medicare benefits to 2 organizations: Happi Health (Huntsville, AL) and American Family Care, LLC (Huntsville, AL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Romualdo Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Romualdo Diaz was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.