ARIEL REBECCA LONG D.O.
NPI 1548657281
Internal Medicine - Sleep Medicine in Memphis, TN
About Ariel Rebecca Long D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIEL REBECCA LONG D.O. (NPI 1548657281) is an individual sleep medicine provider in Memphis, Tennessee, licensed in Tennessee (3709) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in Memphis, and is a graduate of University Of North Texas Hsc, College Of Osteopathic Med (2015).
NPPES Registry Identity
Specialties & Licenses 4
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ariel Rebecca Long D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Ariel Long reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Memphis, TN 38103
- Reassigned Medicare billing, Tennessee enrollment
- 582 clinicians in this Medicare group
Memphis, TN 38103
- Reassigned Medicare billing, Tennessee enrollment
- 421 clinicians in this Medicare group
Talbott, TN 37877
- Reassigned Medicare billing, Tennessee enrollment
- 257 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 38105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MEMPHIS, TN 38105
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 Ariel Long's NPI number?
The NPI number for Ariel Long is 1548657281. It was assigned to this individual provider in the NPPES registry on April 21, 2015. The provider is also known as Ariel Rebecca Riezenman.
Where is Ariel Long located?
Ariel Long practices at 850 Poplar Ave Bldg 2, Memphis, TN 38105. The listed phone number is (901) 287-5594.
What is Ariel Long's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.
Is Ariel Long enrolled in Medicare?
Yes. Ariel Long is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ariel Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Long reassigns Medicare benefits to 3 organizations: Ut Lebonheur Pediatric Specialists, Inc. (Memphis, TN), Ut Regional One Physicians Inc (Memphis, TN) and Cherokee Health Systems (Talbott, TN). 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 Ariel Long's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ariel Long accept?
Health plans from BlueCross BlueShield of Tennessee, Cigna Healthcare and Oscar Insurance Company list Ariel Long 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 Ariel Long was last updated on May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Ariel Rebecca Long, D.O. · NPI 1548657281
Sleep Medicine physician in Memphis, Tennessee. Individual provider, active in the CMS NPPES registry since April 21, 2015.
## Identity
- **NPI:** 1548657281 (Entity type: Individual)
- **Enumerated:** April 21, 2015
- **Primary specialty:** Internal Medicine - Sleep Medicine · taxonomy 207RS0012X
- **State license:** 3709 (Tennessee)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 850 POPLAR AVE BLDG 2, Memphis, TN 38105-4607
- **Phone:** (901) 287-5594
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Ut Lebonheur Pediatric Specialists, Inc. (NPI 1093024101, Memphis, TN); Ut Regional One Physicians Inc (NPI 1093130585, Memphis, TN); Cherokee Health Systems (NPI 1134128820, Talbott, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of North Texas Hsc, College Of Osteopathic Med, class of 2015
## Record status
- **NPPES last updated:** May 15, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1548657281) · Data from the CMS NPPES public registry.