NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1003853862 MD
Verify on CMS → Samuel Register, MD
Pain Medicine (Anesthesiology) Physician in North Little Rock, Arkansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,032 in Pain Medicine (Anesthesiology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Samuel Register, MD is a Pain Medicine (Anesthesiology) Physician in North Little Rock, Arkansas, listed in the federal CMS National Provider Identifier registry.
- #119
- Pain Medicine (Anesthesiology) Physician rank among Arkansas specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1003853862 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1003853862
- ENUM-LEGACY 2006
- TAX-NARROW 4,032
- RX-NONE No Part D
- BOOK-THIN 32 in Arkansas
- PHOTO-ENUM Gabriel Somori · 2006
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Board-eligible specialty (heuristic, not verified)
Samuel Register, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Samuel Register, MD?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Specialty distribution in Arkansas
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Arkansas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pain Medicine (Anesthesiology) Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1003853862 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/01/2006 |
More Pain Medicine (Anesthesiology) Physician in AR →
All providers in Arkansas →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Samuel Register, MD fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,032
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Register, both outside Arkansas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Arkansas
Other clinicians with the same primary specialty enrolled in Arkansas, drawn from the same CMS NPPES roster as Register.
One of 32 Pain Medicine (Anesthesiology) Physician providers enrolled in Arkansas, 5 are shown here.
Dr. Ayman Abdel Halim
MD
Little Rock, AR
Dr. Jacob Abraham
M.D.
Hot Springs, AR
Dr. George Arcos
DO
Conway, AR
Dr. Drew Beasley
MD
Little Rock, AR
Dr. David Benson
M.D.
Bentonville, AR
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Samuel Register, MD's specialty? ▼
Samuel Register, MD specializes in Pain Medicine (Anesthesiology) Physician and practices in North Little Rock, Arkansas. Credentials: MD.
Where is Samuel Register, MD located? ▼
Samuel Register, MD is located at 3500 SPRINGHILL DR STE 200A, North Little Rock, AR, 72117. Phone: (501) 202-3638.
What is Samuel Register, MD's NPI number? ▼
Samuel Register, MD's National Provider Identifier (NPI) is 1003853862, issued on 06/01/2006.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,032 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
Does Samuel Register, MD accept Medicare? ▼
Samuel Register, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Samuel Register, MD's credentials? ▼
Samuel Register, MD's NPI is 1003853862 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.