1. Home
  2. Directory
  3. Tennessee
  4. Greeneville
  5. Hospitalist
  6. NPI Profile

DR. ISIOMA RUTH ANINYEI M.D
NPI 1235450248
Hospitalist in Greeneville, TN

Active since June 14, 2010PECOS EnrolledAccepts Medicare Assignment
401 TAKOMA AVE, GREENEVILLE, TN 37743(828) 687-5616(828) 650-8076 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 29, 2026, Mar 2, 2018, Dec 16, 2016 (3 updates tracked since 2016).

About Dr. Isioma Ruth Aninyei M.d NPPES

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

DR. ISIOMA RUTH ANINYEI M.D (NPI 1235450248) is an individual hospitalist provider in Greeneville, Tennessee, licensed in Tennessee (53029) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Greeneville Community Hospital, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1235450248
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameDR. ISIOMA RUTH ANINYEICredential: M.D
Location Address401 TAKOMA AVEGreeneville, TN 37743-4647
Mailing Address401 Takoma AveGreeneville, TN 37743-4647 · (423) 278-1743 · Fax (423) 278-1930
Phone(828) 687-5616
Fax(828) 650-8076
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateJune 14, 2010
Last NPPES UpdateApril 29, 20263 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1235450248 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Licenses✔ Licensed in TN · 53029✔ Licensed in KY · 48457
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 48457 (KY), 0000053029 (TN)
401 TAKOMA AVE, Greeneville, TN 37743
Open in Google Maps ↗

Other Identifiers 1

OtherP01476605TN · Rail Road Medicare

Accepted Insurance

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

Dr. Isioma Ruth Aninyei M.d 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.

PECOS PAC ID42527574
PECOS Enrollment IDI20150916001965
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Isioma Aninyei reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Summit Medical Group, PLLC
3.3 mi
Family Medicine
555 JUSTIS DR
Greeneville, TN 37745
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,003 clinicians in this Medicare group
NPI 1114236080 (423) 783-7965
Tusculum Physician Services PC
3.5 mi
Hospitalist
1420 TUSCULUM BLVD
Greeneville, TN 37745
  • Reassigned Medicare billing, Tennessee enrollment
  • 35 clinicians in this Medicare group
NPI 1013895192 (423) 787-5000
Centennial Physician Services, PC
32 mi
Internal Medicine
130 W RAVINE RD
Kingsport, TN 37660
  • Reassigned Medicare billing, Tennessee enrollment
  • 23 clinicians in this Medicare group
NPI 1871436022 (423) 224-4000
Hospital Medicine Services Of Tn, LLC
222 mi
Hospitalist
2300 PATTERSON ST
Nashville, TN 37203
  • Reassigned Medicare billing, Tennessee enrollment
  • 420 clinicians in this Medicare group
NPI 1982301065 (615) 342-1001

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
41 services41 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Greeneville Community Hospital

Acute Care Hospitals · Greeneville, TN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440050
Location1420 Tusculum BoulevardGreeneville, TN 37745 · Greene County
Emergency services Birthing friendly

Parkridge Medical Center

Acute Care Hospitals · Chattanooga, TN
4/5 CMS rating
OwnershipProprietary
CMS Certification Number440156
Location2333 Mccallie AveChattanooga, TN 37404 · Hamilton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37743 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ROBERT D. THOMAS M.D.
Radiology (Diagnostic Radiology)
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 636-2362
MUHAMMAD M. AKMAL M.D.
Hospitalist
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 278-1743
TAKOMA REGIONAL HOSPITAL
Skilled Nursing Facility
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (828) 687-5281
TAKOMA REGIONAL HOSPITAL
General Acute Care Hospital (Rural)
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 639-3151
TAKOMA REGIONAL HOSPITAL, INC
Psychiatric Unit
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 639-3151
EDWARD CRUTCHFIELD M.D.
Emergency Medicine
401 TAKOMA AVE, EMERGENCY DEPARTMENT
GREENEVILLE, TN 37743
Greene County (423) 639-3151
UNICOM RADIOLOGY SERVICES, PLLC
Radiology (Diagnostic Radiology)
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 636-2362
DR. FREDERICK MYERS M.D.
Surgery
401 TAKOMA AVE
GREENEVILLE, TN 37743
Greene County (423) 639-2395

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 Isioma Aninyei's NPI number?

The NPI number for Isioma Aninyei is 1235450248. It was assigned to this individual provider in the NPPES registry on June 14, 2010.

Where is Isioma Aninyei located?

Isioma Aninyei practices at 401 Takoma Ave, Greeneville, TN 37743. The listed phone number is (828) 687-5616.

What is Isioma Aninyei's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Isioma Aninyei enrolled in Medicare?

Yes. Isioma Aninyei 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 Isioma Aninyei's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isioma Aninyei reassigns Medicare benefits to 4 organizations: Summit Medical Group, PLLC (Greeneville, TN), Tusculum Physician Services PC (Greeneville, TN), Centennial Physician Services, PC (Kingsport, TN) and Hospital Medicine Services Of Tn, LLC (Nashville, 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 Isioma Aninyei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Isioma Aninyei accept?

Health plans from Oscar Insurance Company list Isioma Aninyei 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.

Is Isioma Aninyei affiliated with any hospitals?

According to CMS data, Isioma Aninyei is affiliated with Greeneville Community Hospital and Parkridge Medical Center.

When was this NPI record last updated?

The NPPES record for Isioma Aninyei was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.