1. Home
  2. Directory
  3. Tennessee
  4. Knoxville
  5. Physician Assistant
  6. NPI Profile

MATTHEW JUSTIN ORENSTEIN PA
NPI 1396497442
Physician Assistant in Knoxville, TN

Active since January 20, 2022PECOS EnrolledAccepts Medicare Assignment
91.5/100
CMS Quality Rating
9015 TEN MILE RD APT 149, KNOXVILLE, TN 37923(605) 209-7246 Get Directions Write a Review

NPPES record last updated: June 11, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jun 11, 2025, Jan 20, 2022 (2 updates tracked since 2022).

About Matthew Justin Orenstein Pa NPPES

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

MATTHEW JUSTIN ORENSTEIN PA (NPI 1396497442) is an individual physician assistant in Knoxville, Tennessee, licensed in Tennessee (4957) and active in the NPI registry since January 2022. He is enrolled in Medicare PECOS, is affiliated with Monument Health Rapid City Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1396497442
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMATTHEW JUSTIN ORENSTEINCredential: PA
Location Address9015 TEN MILE RD APT 149Knoxville, TN 37923-3827
Mailing Address9015 Ten Mile Rd Apt 149Knoxville, TN 37923-3827 · (605) 209-7246
Phone(605) 209-7246
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateJanuary 20, 2022
Last NPPES UpdateJune 11, 20252 updates tracked since enumeration
NPPES CertifiedJune 11, 2025
✔ NPI 1396497442 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in TN · 4957
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.
Also ListedPhysician Assistant · SurgicalTaxonomy 363AS0400X · License 4957 (TN)
9015 TEN MILE RD APT 149, Knoxville, TN 37923
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company, Sanford Health Plan.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

Matthew Justin Orenstein Pa 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 ID2264813864
PECOS Enrollment IDI20250728001262
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 7

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 straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
49 services49 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.
41 services41 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
29 services29 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
22 services22 patients
X-ray of knee, 4 or more views 73564
An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.
14 services14 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Monument Health Rapid City Hospital

Acute Care Hospitals · Rapid City, SD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430077
Location353 Fairmont BlvdRapid City, SD 57701 · Pennington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37923 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.

91.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability95
Improvement Activities40
Cost80.84

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 Matthew Orenstein's NPI number?

The NPI number for Matthew Orenstein is 1396497442. It was assigned to this individual provider in the NPPES registry on January 20, 2022.

Where is Matthew Orenstein located?

Matthew Orenstein practices at 9015 Ten Mile Rd Apt 149, Knoxville, TN 37923. The listed phone number is (605) 209-7246.

What is Matthew Orenstein's specialty?

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

Is Matthew Orenstein enrolled in Medicare?

Yes. Matthew Orenstein 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 Matthew Orenstein accept?

Health plans from Medica, Oscar Insurance Company and Sanford Health Plan list Matthew Orenstein 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 Matthew Orenstein affiliated with any hospitals?

According to CMS data, Matthew Orenstein is affiliated with Monument Health Rapid City Hospital.

When was this NPI record last updated?

The NPPES record for Matthew Orenstein was last updated on June 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.