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MARIANNA GRACE PETTIT
NPI 1215854229
Nurse Practitioner - Psychiatric/Mental Health in Knoxville, TN

Active since July 01, 2026PECOS Enrolled
4604 TANGLEWOOD RD, KNOXVILLE, TN 37912(703) 868-9797 Get Directions Write a Review

NPPES record last updated: July 1, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Marianna Grace Pettit NPPES

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

MARIANNA GRACE PETTIT (NPI 1215854229) is an individual psychiatric/mental health provider in Knoxville, Tennessee, licensed in Tennessee (42357) and active in the NPI registry since July 2026. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1215854229
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARIANNA GRACE PETTIT
Location Address4604 TANGLEWOOD RDKnoxville, TN 37912-3913
Mailing Address4604 Tanglewood RdKnoxville, TN 37912-3913 · (703) 868-9797
Phone(703) 868-9797
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateJuly 1, 2026
NPPES CertifiedMay 12, 2026
✔ NPI 1215854229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in TN · 42357
4604 TANGLEWOOD RD, Knoxville, TN 37912
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marianna Grace Pettit is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8729547773
PECOS Enrollment IDI20260828004170
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 Reassignment

Medicare enrollment records show Marianna Pettit reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Oasis Mental Health Services LLC
405 mi
Psychiatric/Mental Health
42114 BARRYMOORE PL
Chantilly, VA 20152
  • Reassigned Medicare billing, Virginia enrollment
  • 11 clinicians in this Medicare group
NPI 1093406712 (703) 722-4828

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 37912 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
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
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.

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 Marianna Pettit's NPI number?

The NPI number for Marianna Pettit is 1215854229. It was assigned to this individual provider in the NPPES registry on July 1, 2026.

Where is Marianna Pettit located?

Marianna Pettit practices at 4604 Tanglewood Rd, Knoxville, TN 37912. The listed phone number is (703) 868-9797.

What is Marianna Pettit's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Marianna Pettit enrolled in Medicare?

Yes. Marianna Pettit is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marianna Pettit's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marianna Pettit reassigns Medicare benefits to Oasis Mental Health Services LLC (Chantilly, VA). The 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 Marianna Pettit's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marianna Pettit was last updated on July 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.