Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIAH SHYANNE HALL PHILLIPS
NPI 1134745912
Physician Assistant in Alcoa, TN

Q: What is Mariah Hall Phillips's NPI number?

The NPI number for Mariah Hall Phillips is 1134745912. It was assigned to this individual provider in the NPPES registry on June 17, 2020. The provider is also known as Mariah S. Hall Pa-C.

Q: What is Mariah Hall Phillips's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Active since June 17, 2020PECOS Enrolled

79.29/100

CMS Quality Rating

266 JOULE ST, ALCOA, TN 37701(865) 984-3864(865) 380-4095 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 22, 2026, Jan 23, 2023, Feb 2, 2022 and 3 more (6 updates tracked since 2020).

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About Mariah Shyanne Hall Phillips NPPES

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

MARIAH SHYANNE HALL PHILLIPS (NPI 1134745912) is an individual physician assistant in Alcoa, Tennessee, licensed in Tennessee (PA0000004657) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Blount Memorial Hospital, and maintains a secondary practice location in Huntsville.

NPPES Registry Identity

NPI1134745912

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameMARIAH SHYANNE HALL PHILLIPS

Location Address266 JOULE STAlcoa, TN 37701-2422

Mailing Address1275 Dick Lonas Rd Unit 101Knoxville, TN 37909-1383 · (865) 584-4747 · Fax (865) 381-1509

Phone(865) 984-3864

Fax(865) 380-4095

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateJune 17, 2020

Last NPPES UpdateJuly 22, 20266 updates tracked since enumeration

NPPES CertifiedJuly 22, 2026

✔ NPI 1134745912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in TN · PA0000004657

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

266 JOULE ST, Alcoa, TN 37701

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Other Names 1

Former Name (1)Mariah S. Hall Pa-c

Secondary Practice Location 1

Location 1950 Baker Hwy Unit 4Huntsville, TN 37756-4169 · Phone (423) 663-4200 · Fax (423) 663-4256

Other Identifiers 1

MedicaidQ071442TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mariah Shyanne Hall Phillips 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 ID9537552328

PECOS Enrollment IDI20220128002029

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.

Areas of Expertise CMS Part B claims 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

201 services153 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

96 services94 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

64 services58 patients

Testing for presence of drug, read by direct observation 80305

Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Blount Memorial Hospital

Acute Care Hospitals · Maryville, TN

4/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number440011

Location907 E Lamar Alexander ParkwayMaryville, TN 37804 · Blount County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37701 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

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

74.55

Promoting Interoperability

Improvement Activities

Cost

63.09

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.

MS. CARRIE BRASS P.A.

Physician Assistant

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

KATHERINE C BAKER NP

Nurse Practitioner

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 268-1344

DR. JOHN J INGRAM III MD

Internal Medicine

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

NEAL W ATCHLEY M.D.

Family Medicine

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

EMILY ELLIOTT

Physician Assistant

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

MRS. LORI M. ERVIN FNP

Nurse Practitioner (Family)

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

GULMOHOR D ROY M.D.

Psychiatry & Neurology (Neurology)

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

LAUREN E MONROE ANP

Nurse Practitioner (Adult Health)

266 JOULE ST
ALCOA, TN 37701

Blount County (865) 984-3864

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 Mariah Hall Phillips's NPI number?

The NPI number for Mariah Hall Phillips is 1134745912. It was assigned to this individual provider in the NPPES registry on June 17, 2020. The provider is also known as Mariah S. Hall Pa-C.

Where is Mariah Hall Phillips located?

Mariah Hall Phillips practices at 266 Joule St, Alcoa, TN 37701. The listed phone number is (865) 984-3864.

What is Mariah Hall Phillips's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Mariah Hall Phillips enrolled in Medicare?

Yes. Mariah Hall Phillips 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.

What insurance does Mariah Hall Phillips accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Mariah Hall Phillips 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 Mariah Hall Phillips affiliated with any hospitals?

According to CMS data, Mariah Hall Phillips is affiliated with Blount Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mariah Hall Phillips was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.