SAUL ALEJANDRO RIOS HERRERA M.D.
NPI 1184170433
Internal Medicine in Little Rock, AR

Active since August 28, 2016PECOS Enrolled
7 SHACKLEFORD WEST BLVD, LITTLE ROCK, AR 72211(501) 644-5860(501) 664-0889 Get Directions Write a Review

NPPES record last updated: December 10, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 10, 2025, Dec 4, 2025, Jul 11, 2025 and 2 more (5 updates tracked since 2016).

About Saul Alejandro Rios Herrera M.d. NPPES

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

SAUL ALEJANDRO RIOS HERRERA M.D. (NPI 1184170433) is an individual internal medicine provider in Little Rock, Arkansas, licensed in Arkansas (E-19648) and active in the NPI registry since August 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1184170433
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSAUL ALEJANDRO RIOS HERRERACredential: M.D.
Location Address7 SHACKLEFORD WEST BLVDLittle Rock, AR 72211-3886
Mailing Address7 Shackleford West BlvdLittle Rock, AR 72211-3886 · (501) 644-5860 · Fax (501) 664-0889
Fax(501) 664-0889
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateAugust 28, 2016
Last NPPES UpdateDecember 10, 20255 updates tracked since enumeration
NPPES CertifiedDecember 10, 2025
✔ NPI 1184170433 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AR · E-19648
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
7 SHACKLEFORD WEST BLVD, Little Rock, AR 72211

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Saul Alejandro Rios Herrera M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1355881756
PECOS Enrollment IDI20250805003108, I20251126002602
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

3

Medicare enrollment records show Saul Rios Herrera reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cardiovascular Disease
7 SHACKLEFORD WEST BLVD
Little Rock, AR 72211
  • Reassigned Medicare billing, Arkansas enrollment
  • 169 clinicians in this Medicare group
Cardiovascular Disease
7 SHACKLEFORD WEST BLVD
Little Rock, AR 72211
  • Reassigned Medicare billing, Arkansas enrollment
  • 123 clinicians in this Medicare group
Family Medicine
2633 BROADWAY
New York, NY 10025
  • Reassigned Medicare billing, New York enrollment
  • 5,251 clinicians in this Medicare group

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 72211 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
$119.36 typical visit price
range $51.36 – $157.74
Typical copayment $29.84 (range $12.84 – $39.43)
Most-billed visit code 99204
Established Patient
$91.63 typical visit price
range $16.16 – $128.77
Typical copayment $22.90 (range $4.04 – $32.19)
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 20

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

Internal Medicine (Cardiovascular Disease)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Internal Medicine (Cardiovascular Disease)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Physician Assistant
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Nurse Practitioner (Acute Care)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Nurse Practitioner (Acute Care)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Surgery
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Internal Medicine (Cardiovascular Disease)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211
Internal Medicine (Cardiovascular Disease)
7 SHACKLEFORD WEST BLVD
LITTLE ROCK, AR 72211

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 Saul Rios Herrera's NPI number?

The NPI number for Saul Rios Herrera is 1184170433. It was assigned to this individual provider in the NPPES registry on August 28, 2016.

Where is Saul Rios Herrera located?

Saul Rios Herrera practices at 7 Shackleford West Blvd, Little Rock, AR 72211. The listed phone number is (501) 644-5860.

What is Saul Rios Herrera's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Saul Rios Herrera enrolled in Medicare?

Yes. Saul Rios Herrera is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Saul Rios Herrera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Saul Rios Herrera reassigns Medicare benefits to 3 organizations: Arkansas Heart Hospital, LLC (Little Rock, AR), Arkansas Heart Hospital Rural Health Services, LLC (Little Rock, AR) and Montefiore Medical Center (New York, NY). 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 Saul Rios Herrera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Saul Rios Herrera accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Saul Rios Herrera as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Saul Rios Herrera was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.