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Dr. Sinclair W Armstrong , MD

Urology • Fort Smith, AR

Active NPI 1861435752 Individual Practitioner Male Practitioner
Practice location in NPPES

7001 Rogers Ave
Fort Smith, AR 729034073

Call 4794522077 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

7001 Rogers Ave

Fort Smith, AR 729034073

Telephone 4794522077
Organization at the Same NPPES Address or Phone
Eastside Ob/gyn P.l.l.c. Facility NPI 1396786042

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Open Payments general payments, program year 2021

All general payments: $141.70 across 2 records.

By nature of payment

  • Food and Beverage: $141.70 across 2 records.

Reporting-company totals

  • Astellas Pharma US Inc: $141.70 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2021 (published June 30, 2026).

Guide: How to read an Open Payments record

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Fort Smith and Arkansas

6 active clinicians are listed under Urology with a practice address in Fort Smith, AR (98 in Arkansas).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2021

Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $141.70.

Manufacturer Payment Nature Product Type Amount ($)
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
XTANDI General $86.20
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
XTANDI General $55.50

Source: CMS Open Payments, program year 2021, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

License # reported to NPPES AR R-2359

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Arkansas State Medical Licensing Board.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

10 listed
Dr. Paul Bean , MD

Internal Medicine

NPI 1790714269

Doctor of Medicine (M.D.)

NPI 1184650616

Doctor of Medicine (M.D.)

NPI 1962430504

Doctor of Medicine (M.D.)

Lesli France , PT

Physical Therapist

NPI 1578616215

Physical Therapist

Dr. Paul Howell , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1063431328

Doctor of Medicine (M.D.)

Dr. Sanjay Khemka , MD

Internal Medicine

NPI 1528175056

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated June 14, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1861435752
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 14, 2006
Last Update: July 08, 2007
Sole Proprietor: No

Other Urology Specialists in Fort Smith

Healthcare providers in Fort Smith

Mailing Address

Po Box 3528

Fort Smith, AR 729133528

Phone: 4794522077

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.