DR. WILLIAM I MARIENCHECK MD
NPI 1467432203
Internal Medicine - Sleep Medicine in Memphis, TN

Q: What is William Mariencheck's NPI number?

The NPI number for William Mariencheck is 1467432203. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Q: What is William Mariencheck's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Active since January 18, 2006

5050 POPLAR AVE, SUITE 800, MEMPHIS, TN 38157(901) 276-2662(901) 274-1871 Get Directions Write a Review

NPPES record last updated: November 12, 2019. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. William I Mariencheck Md NPPES

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

DR. WILLIAM I MARIENCHECK MD (NPI 1467432203) is an individual sleep medicine provider in Memphis, Tennessee, licensed in Tennessee (5396) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1467432203

Entity TypeIndividualMale

Primary Taxonomy207RS0012X

Provider Legal NameDR. WILLIAM I MARIENCHECKCredential: MD

Location Address5050 POPLAR AVE, SUITE 800Memphis, TN 38157-0101

Mailing Address5050 Poplar Ave, Suite 800Memphis, TN 38157-0101 · (901) 276-2662 · Fax (901) 274-1871

Phone(901) 276-2662

Fax(901) 274-1871

Sole ProprietorNo

Enumeration DateJanuary 18, 2006

Last NPPES UpdateNovember 12, 2019

✔ NPI 1467432203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

License✔ Licensed in TN · 5396

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 5396 (TN)

5050 POPLAR AVE, Memphis, TN 38157

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Other Identifiers 1

Medicaid3161066TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

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.

DR. DAVID IRVIN WILLIAMS M.D.

Internal Medicine (Critical Care Medicine)

5050 POPLAR AVE, STE 800
MEMPHIS, TN 38157

Shelby County (901) 333-8443

METHODIST LE BONHEUR HEALTHCARE EAP

Counselor (Professional)

5050 POPLAR AVE, SUITE # 1118
MEMPHIS, TN 38157

Shelby County (901) 683-5658

DR. MATTHEW W MABIE MD

Internal Medicine (Critical Care Medicine)

5050 POPLAR AVE, SUITE 800
MEMPHIS, TN 38157

Shelby County (901) 333-8443

MID-SOUTH PULMONARY SPECIALISTS PC

Internal Medicine (Critical Care Medicine)

5050 POPLAR AVE, SUITE 800
MEMPHIS, TN 38157

Shelby County (901) 276-2662

DR. EDWIN O TAYLOR MD

Internal Medicine (Critical Care Medicine)

5050 POPLAR AVE, SUITE 800
MEMPHIS, TN 38157

Shelby County (901) 276-2662

DR. VERNON LATRELL JOHNSON M.D.

Internal Medicine

5050 POPLAR AVE, SUITE 718
MEMPHIS, TN 38157

Shelby County (901) 443-0475

SYED JUNAID AHMED ZAIDI M.D.

Internal Medicine (Sleep Medicine)

5050 POPLAR AVE, SUITE 800
MEMPHIS, TN 38157

Shelby County (901) 276-2662

MEMPHIS MEN'S CLINIC, PC

Specialist/Technologist, Other

5050 POPLAR AVE, STE 718
MEMPHIS, TN 38157

Shelby County (901) 443-0475

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 William Mariencheck's NPI number?

The NPI number for William Mariencheck is 1467432203. It was assigned to this individual provider in the NPPES registry on January 18, 2006.

Where is William Mariencheck located?

William Mariencheck practices at 5050 Poplar Ave Suite 800, Memphis, TN 38157. The listed phone number is (901) 276-2662.

What is William Mariencheck's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

What insurance does William Mariencheck accept?

Health plans from Oscar Insurance Company list William Mariencheck 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 William Mariencheck was last updated on November 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.