Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Mark Kiernan Thomas , MD

Orthopaedic Surgery • Mcminnville, OR

Active NPI 1396714135 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

2700 Se Stratus Ave Unit 303
Mcminnville, OR 971286257

Call 5034354520 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2700 Se Stratus Ave Unit 303

Mcminnville, OR 971286257

Telephone 5034354520
Organization at the Same NPPES Address or Phone
Willamette Valley Clinics, Llc Facility NPI 1538355540

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Maryville, TN. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Willamette Valley Clinics Llc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Medical School

University Of Texas Medical School At Houston

Graduation Year

1990

Medicare patients

328 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $107,600 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $81,087 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

546 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$2,863 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2024

All general payments: $51.35 across 2 records.

By nature of payment

  • Food and Beverage: $51.35 across 2 records.

Reporting-company totals

  • Bioventus LLC: $25.88 across 1 record.
  • Steelhead Surgical Inc: $25.47 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

36 years (graduated 1990)

CMS Doctors and Clinicians data list 1990 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Thomas has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Thomas as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Mcminnville and Oregon

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Orthopaedic Surgery in Oregon (2024, 140 clinicians with data). Median for this group: 647. Middle half: 188 to 1,981.

Too few clinicians listed under Orthopaedic Surgery in Mcminnville have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 65% of clinicians listed under Orthopaedic Surgery in Oregon (2024, 140 clinicians with data). Median for this group: $63,083. Middle half: $24,397 to $141,264.

Too few clinicians listed under Orthopaedic Surgery in Mcminnville have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 65% of clinicians listed under Orthopaedic Surgery in Oregon (2024, 140 clinicians with data). Median for this group: $47,276. Middle half: $17,529 to $108,708.

Too few clinicians listed under Orthopaedic Surgery in Mcminnville have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Orthopaedic Surgery in Oregon (2024, 145 clinicians with data). Median for this group: 101. Middle half: 39 to 250.

Too few clinicians listed under Orthopaedic Surgery in Mcminnville have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Orthopaedic Surgery in Oregon (2024, 145 clinicians with data). Median for this group: $640. Middle half: $242 to $1,568.

Too few clinicians listed under Orthopaedic Surgery in Mcminnville have Medicare Part D data for 2024 to compare.

6 active clinicians are listed under Orthopaedic Surgery with a practice address in Mcminnville, OR (339 in Oregon).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2024

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $51.35.

Manufacturer Payment Nature Product Type Amount ($)
Bioventus LLC
Food and Beverage
In-kind items and services
EXOGEN ULTRASOUND BONE HEALING SYSTEM General $25.88
Steelhead Surgical Inc
Food and Beverage
In-kind items and services
— General $25.47

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
J1010 Injection, methylprednisolone acetate, 1 mg
2,112 42 $0.51 $0.13
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
181 138 $196.00 $92.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
124 124 $294.00 $113.07
20610 Aspiration and/or injection of fluid from large joint
94 50 $290.72 $78.20
73502 X-ray of hip, 2-3 views
68 51 $80.00 $48.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
57 50 $295.00 $131.04
J7324 Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose
56 14 $313.00 $125.22
73560 X-ray of knee, 1-2 views
53 43 $89.00 $34.91
73564 X-ray of knee, 4 or more views
52 44 $129.81 $48.23
73610 X-ray of ankle, minimum of 3 views
35 16 $97.00 $37.52
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
21 21 $452.00 $169.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
20 17 $119.00 $57.32
27130 Replacement of thigh bone and hip joint with prosthesis
19 17 $4336.00 $1286.67
J1030 Injection, methylprednisolone acetate, 40 mg
16 14 $12.00 $6.34
73140 X-ray of finger, minimum of 2 views
15 11 $90.00 $39.13
73030 X-ray of shoulder, minimum of 2 views
14 12 $95.00 $34.23
27447 Replacement of knee joint, both sides of knee
12 12 $4644.00 $1284.11

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Meloxicam Meloxicam 160 4,728 $448.75 97
Oxycodone Hcl Oxycodone Hcl 127 743 $738.98 102
Gabapentin Gabapentin 115 3,695 $1,038.53 63
Amoxicillin Amoxicillin 57 66 $65.02 26
Tramadol Hcl Tramadol Hcl 22 146 $84.55 17
Ibuprofen Ibuprofen 20 575 $177.60 17
Clindamycin Hcl Clindamycin Hcl 17 437 $309.15 —

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

License # reported to NPPES OR MD180256

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Oregon Medical Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
3092413 (TN)
Other Identifier Tenncare
100011285 (TN)
Other Identifier John Deere Healthcare
TN0184 (TN)
Other Identifier United Health Care
1315687 (TN)
Other Identifier Blue Cross Blue Shield
3071396 (TN)
Other Identifier Aetna
4496138 (TN)
Other Identifier John Deere Healthcare
TN0134 (TN)
Other Identifier Railroad Medicare
P00259915 (TN)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ORTHOPEDIC SURGERY

Medicare Enrollment ID

I20161220001418

Enrollment State Jurisdiction

OR

PECOS Control ID

6507994019

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Willamette Valley Clinics Llc

2700 Se Stratus Ave, Mcminnville, OR 971286258

Phone: 5034341110

Willamette Valley Clinics Llc

2700 Se Stratus Ave, Mcminnville, OR 971286257

Secondary Practice Locations

827 Lamar Alexander Pkwy

Maryville, TN 37802

Phone: 8659840900

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

1 listed
Dr. Derek Rains , MD

Orthopaedic Surgery - Sports Medicine

NPI 1144335951

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
📍
Updated Business Mailing Address March 13, 2019

Registered at 2700 SE STRATUS AVE UNIT 303, MCMINNVILLE, OR 971286257

🏢
Secondary Practice Location Registered March 13, 2019

Additional practice office at 827 Lamar Alexander Pkwy, Maryville, TN 37802

📍
Updated Practice Location September 27, 2018

Registered at 2700 SE STRATUS AVE UNIT 303, MCMINNVILLE, OR 971286257 (Tel: 5034354520)

✅
NPI Profile Active December 01, 2016

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) December 01, 2016

Registered at 827 LAMAR ALEXANDER PKWY, MARYVILLE, TN 37802 (Tel: 8659840900)

📍
Business Mailing Address (Initial Record) December 01, 2016

Registered at 827 LAMAR ALEXANDER PKWY, MARYVILLE, TN 37802

👤
Provider Name / Credentials (Initial Record) December 01, 2016

Recorded as MARK THOMAS, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 01, 2016

Orthopaedic Surgery (license number reported to NPPES: OR MD180256)

🟢
Initial NPI Registration & Enumeration March 15, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1396714135
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 15, 2006
Last Update: March 13, 2019
Sole Proprietor: No

Mailing Address

2700 Se Stratus Ave Unit 303

Mcminnville, OR 971286257

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.