DR. GREGORY MARK MATHIEN M.D.
NPI 1730156076
Orthopaedic Surgery - Sports Medicine in Knoxville, TN

Q: What is Gregory Mathien's NPI number?

The NPI number for Gregory Mathien is 1730156076. It was assigned to this individual provider in the NPPES registry on March 7, 2006.

Q: What is Gregory Mathien's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Sports Medicine, with taxonomy code 207XX0005X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Mathien was last updated on January 15, 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.

Active since March 07, 2006PECOS EnrolledAccepts Medicare Assignment

91.5/100

CMS Quality Rating

1422 OLD WEISGARBER RD, KNOXVILLE, TN 37909(865) 558-4400(865) 558-4471 Get Directions Write a Review

NPPES record last updated: January 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 15, 2026, Jun 22, 2017 (2 updates tracked since 2017).

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About Dr. Gregory Mark Mathien M.d. NPPES

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

DR. GREGORY MARK MATHIEN M.D. (NPI 1730156076) is an individual sports medicine provider in Knoxville, Tennessee, licensed in Tennessee (21414) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Physicians Regional Medical Center, and is a graduate of State University Of Ny Upstate Medical University (1986).

NPPES Registry Identity

NPI1730156076

Entity TypeIndividualMale

Primary Taxonomy207XX0005X

Provider Legal NameDR. GREGORY MARK MATHIENCredential: M.D.

Location Address1422 OLD WEISGARBER RDKnoxville, TN 37909-1293

Mailing Address8320 E Walker Springs Ln Ste 200Knoxville, TN 37923-3120 · (865) 769-4500 · Fax (865) 769-4501

Phone(865) 558-4400

Fax(865) 558-4471

Sole ProprietorNo

Medical School CMSState University Of Ny Upstate Medical UniversityGraduated 1986

Enumeration DateMarch 7, 2006

Last NPPES UpdateJanuary 15, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 15, 2026

✔ NPI 1730156076 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207XX0005X

License✔ Licensed in TN · 21414

Definition

An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License MD21414 (TN)

1422 OLD WEISGARBER RD, Knoxville, TN 37909

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Other Identifiers 10

OtherTN0120TN · John Deere Healthcare

Other100010064TN · Tenncare

Other1196196TN · United Health Care

OtherTN0152TN · John Deere Healthcare

Medicaid3059706TN

Other4397728TN · Aetna

Other200030088TN · Railroad Medicare

Other3071385TN · Blue Cross Blue Shield

Other098041241TN · Tricare

OtherP00910368TN · Railroad Medicare

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

Dr. Gregory Mark Mathien 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 ID4183705171

PECOS Enrollment IDI20100427000037

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 10

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

436 services84 patients

X-ray for bone length assessment 77073

An X-ray for bone length assessment is a simple, non-invasive imaging test. It helps to evaluate the length of your bones and identify any discrepancies or abnormalities. This procedure is quick, painless, and provides valuable information for your healthcare provider.

144 services143 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.

142 services119 patients

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.

142 services121 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.

123 services84 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

93 services86 patients

Hospital Affiliations CMS Care Compare 2

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

Physicians Regional Medical Center

Acute Care Hospitals · Powell, TN

2/5 CMS rating

OwnershipProprietary

CMS Certification Number440120

Location7565 Dannaher Way PowellPowell, TN 37849 · Knox County

Emergency services Birthing friendly

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440173

Location9352 Park West BlvdKnoxville, TN 37923 · Knox County

Emergency services Birthing friendly

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 Interoperability

Improvement Activities

Cost

80.84

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Knee orthosis, elastic with condylar pads and joints, with or without patellar control, prefabricated, includes fitting and adjustment L1820

DME-Orthotic Devices · category DF011N

1 supplier16 claims16 services$100.86 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 W. HAWKINS N.P.

Nurse Practitioner