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GUIDESTAR ELDERCARE - TN, P.C.
NPI 1023791449
Internal Medicine in Memphis, TN

Active since August 11, 2023
6000 POPLAR AVE STE 250, MEMPHIS, TN 38119(574) 546-1900 Get Directions Write a Review

NPPES record last updated: January 16, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 27, 2023, Aug 29, 2023, Aug 21, 2023 and 1 more (4 updates tracked since 2023).

About Guidestar Eldercare - Tn, P.c. NPPES

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

GUIDESTAR ELDERCARE - TN, P.C. (NPI 1023791449) is a healthcare organization registered as an internal medicine in Memphis, Tennessee and active in the NPI registry since August 2023. The organization lists Steven L Posar, Director, Owner, as its authorized official.

NPPES Registry Identity

NPI1023791449
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameGUIDESTAR ELDERCARE - TN, P.C.
Location Address6000 POPLAR AVE STE 250Memphis, TN 38119-3974
Mailing AddressPo Box 10901Fort Wayne, IN 46854-0901 · (574) 546-1900 · Fax (574) 546-1999
Phone(574) 546-1900
Organization SubpartNo
Authorized OfficialSteven L PosarDirector, Owner · (574) 546-1900
Enumeration DateAugust 11, 2023
Last NPPES UpdateJanuary 16, 20254 updates tracked since enumeration
NPPES CertifiedJanuary 16, 2025
✔ NPI 1023791449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 8

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X
Also ListedNurse PractitionerTaxonomy 363L00000X
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X
6000 POPLAR AVE STE 250, Memphis, TN 38119
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Guidestar Eldercare - Tn, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

30

Medicare enrollment records show 30 clinicians reassign Medicare billing to Guidestar Eldercare - Tn, P.C., which bills Medicare for the services they deliver. Of these, 10 practice at this address and 13 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 6

Nurse Practitioner14
Clinical Social Worker6
Clinical Psychologist3
Mental Health Counselor3
Internal Medicine2
Psychiatry2

Nearest to this location (20)

See all 30
Kristina Adkins, APRN
Nurse Practitioner
NPI 1679341853
6000 POPLAR AVE STE 250
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Amanda Fox, FNP
Nurse Practitioner
NPI 1174336945
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Daniel Heiser, PSYD
Clinical Psychologist
NPI 1396914875
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Crystal Henson, MA
Clinical Psychologist
NPI 1922136001
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Mariam Soliman, FNP-C
Nurse Practitioner
NPI 1164317582
6000 POPLAR AVE STE 250
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Jennifer Tabor, LCSW
Clinical Social Worker
NPI 1356142087
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Stephanie Taimanglo, APRN
Nurse Practitioner
NPI 1609683580
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Jennifer Thomas, LCSW
Clinical Social Worker
NPI 1568769313
6000 POPLAR AVE
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Susan Walker, AGNP-C, MSN, RN
Nurse Practitioner
NPI 1467143263
6000 POPLAR AVE STE 250
Memphis, TN 38119
(574) 546-1900
✔ PECOS✔ Accepts MedicareSame address
Jayne Tingley, LMHC
Mental Health Counselor
NPI 1568727006
6000 POPLAR AVE STE 250
Memphis, TN 38119
(574) 546-1900
✔ PECOSSame address
Danielle Taylor-Peoples
Clinical Social Worker
NPI 1174103220
4646 POPLAR AVE
Memphis, TN 38117
(901) 443-8895
✔ PECOS✔ Accepts Medicare2.8 mi
Sharon Isabel
Nurse Practitioner
NPI 1316894413
766 WOODLAND LEVEE WAY
Cordova, TN 38018
(901) 230-1054
✔ PECOS✔ Accepts Medicare7.7 mi
Carmen Johnson, FNP-C
Nurse Practitioner
NPI 1881572550
526 HALLE PARK DR
Collierville, TN 38017
(901) 261-0700
✔ PECOS✔ Accepts Medicare9.9 mi
Erica Williamson, LCSW
Mental Health Counselor
NPI 1316661192
8321 HUNTERS MEADOW LN
Bartlett, TN 38002
(901) 488-9910
✔ PECOS11 mi
Laura Kimball, NP
Nurse Practitioner
NPI 1689456287
482 INTERSTATE DR
Manchester, TN 37355
(931) 728-4718
✔ PECOS✔ Accepts Medicare216 mi
Susan Stirewalt, MA, LPC-MHSP, NCC
Mental Health Counselor
NPI 1841758778
399 INDIAN CAVE DR
Loudon, TN 37774
(865) 309-5239
✔ PECOS✔ Accepts Medicare311 mi
Jessica Brady, LPC-MHSP
Clinical Social Worker
NPI 1407033921
10025 INVESTMENT DR STE 100
Knoxville, TN 37932
(865) 606-6110
✔ PECOS328 mi
Stephanie Murphy, PSYD, HSPP
Clinical Psychologist
NPI 1518419787
2100 N MAIN ST STE 304
Crown Point, IN 46307
(574) 546-1900
✔ PECOS✔ Accepts Medicare458 mi
Olaniyi Osuntokun, MD
Psychiatry
NPI 1548375058
2100 N MAIN ST STE 304
Crown Point, IN 46307
(574) 546-1900
✔ PECOS✔ Accepts Medicare458 mi
Steven Posar, MD
Internal Medicine
NPI 1154308575
2100 N MAIN ST STE 304
Crown Point, IN 46307
(574) 546-1900
✔ PECOS✔ Accepts Medicare458 mi
See all 30 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Guidestar Eldercare - Tn, P.C.'s NPI number?

The NPI number for Guidestar Eldercare - Tn, P.C. is 1023791449. It was assigned to this organization in the NPPES registry on August 11, 2023.

Where is Guidestar Eldercare - Tn, P.C. located?

Guidestar Eldercare - Tn, P.C. is located at 6000 Poplar Ave Ste 250, Memphis, TN 38119. The listed phone number is (574) 546-1900.

What is Guidestar Eldercare - Tn, P.C.'s specialty?

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

Is Guidestar Eldercare - Tn, P.C. enrolled in Medicare?

Yes. Guidestar Eldercare - Tn, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Guidestar Eldercare - Tn, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 30 clinicians in 6 Medicare specialties reassign their Medicare billing to Guidestar Eldercare - Tn, P.C.. A 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 the clinician's services. The largest specialties are Nurse Practitioner (14), Clinical Social Worker (6) and Clinical Psychologist (3). Of these, 10 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Guidestar Eldercare - Tn, P.C. was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.