Dr. Brett Michael Walker , DO
Orthopaedic Surgery โข Owosso, MI
819 N Shiawassee St Ste 200
Owosso, MI 488671601
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Brett Walker is listed in NPPES under Orthopaedic Surgery.
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NPI assigned on June 27, 2011; this date does not establish years in practice.
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Published CMS data list 36 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 72110 โ X-ray of lower and sacral spine, minimum of 4 views: 19 service units.
- 99213 โ Established patient outpatient office visit: 17 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) โ 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 95% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 506 clinicians with data). Median for this group: 794. Middle half: 267 to 2,389.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 137 in 2020 to 36 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
819 N Shiawassee St Ste 200
Owosso, MI 488671601
NPPES lists 5 distinct additional practice-address records in Charlevoix, MI; Gaylord, MI; Harbor Springs, MI and 2 more. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Munson Healthcare Otsego Memorial Hospital; Munson Medical Center. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Michigan State University College Of Osteopathic Medicine
2011
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
47 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $1,298 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 โ by Provider and Service, 2024.
Paid by Medicare
About $946 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 โ by Provider and Service, 2024.
30-day fills
12 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
$112 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $401.95 across 8 records.
By nature of payment
- Food and Beverage: $401.95 across 8 records.
Reporting-company totals
- Medtronic, Inc.: $401.95 across 8 records.
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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
15 years (graduated 2011)
CMS Doctors and Clinicians data list 2011 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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.
NPI first issued
2011
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
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.
Enrolled in Medicare (PECOS)
Dr. Walker 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.
Can order Medicare-covered services
CMS lists Dr. Walker 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Owosso and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 95% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 506 clinicians with data). Median for this group: 794. Middle half: 267 to 2,389.
Too few clinicians listed under Orthopaedic Surgery in Owosso have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 95% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 506 clinicians with data). Median for this group: $58,140. Middle half: $23,743 to $122,768.
Too few clinicians listed under Orthopaedic Surgery in Owosso have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 95% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 506 clinicians with data). Median for this group: $43,561. Middle half: $17,274 to $92,851.
Too few clinicians listed under Orthopaedic Surgery in Owosso have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer Part D prescriptions than 90% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 548 clinicians with data). Median for this group: 148. Middle half: 48 to 337.
Too few clinicians listed under Orthopaedic Surgery in Owosso have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 80% of clinicians listed under Orthopaedic Surgery in Michigan (2024, 548 clinicians with data). Median for this group: $729. Middle half: $194 to $2,424.
Too few clinicians listed under Orthopaedic Surgery in Owosso have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Orthopaedic Surgery with a practice address in Owosso, MI (962 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 74% from 137 in 2020 to 36 in 2024.
- 2020: 137
- 2021: 140
- 2022: 384
- 2023: 239
- 2024: 36
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Medicare-allowed amount
Medicare-allowed amount decreased 88% from $10,594 in 2020 to $1,298 in 2024.
- 2020: $10,594
- 2021: $8,603
- 2022: $21,574
- 2023: $14,269
- 2024: $1,298
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Paid by Medicare
Paid by Medicare decreased 87% from $7,502 in 2020 to $946 in 2024.
- 2020: $7,502
- 2021: $6,365
- 2022: $16,098
- 2023: $10,926
- 2024: $946
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 87% from 95 in 2019 to 12 in 2024.
- 2019: 95
- 2020: 19
- 2022: 74
- 2023: 50
- 2024: 12
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30-day fills
30-day fills decreased 87% from 95 in 2019 to 12 in 2024.
- 2019: 95
- 2020: 19
- 2022: 74
- 2023: 50
- 2024: 12
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Part D drug cost
Part D drug cost decreased 94% from $1,903 in 2019 to $112 in 2024.
- 2019: $1,903
- 2020: $231
- 2022: $785
- 2023: $494
- 2024: $112
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $115.94 in 2021 to $401.95 in 2025.
- 2021: $115.94
- 2022: $76.70
- 2023: $165.37
- 2024: $38.94
- 2025: $401.95
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $401.95.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
MAZOR X SYSTEM | General | $116.11 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
RIALTO SI FUSION SYSTEM | General | $88.77 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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UNID_PASS | General | $48.96 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
GRAFTONAND GRAFTON PLUSDEMINERALIZED BONE MATRIX (DBM) | General | $46.28 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
O-ARM | General | $45.46 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
RIALTO SI FUSION SYSTEM | General | $28.45 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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O-ARM | General | $15.84 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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GRAFTONAND GRAFTON PLUSDEMINERALIZED BONE MATRIX (DBM) | General | $12.08 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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 โ by Provider and Service data, 2017โ2024; 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 |
|---|---|---|---|---|
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72110
X-ray of lower and sacral spine, minimum of 4 views
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19 | 19 | $27.00 | $11.89 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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17 | 16 | $94.00 | $63.09 |
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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 12 | 91 | $111.54 | โ |
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
Self-certified to NPPES: 2026-03-04NUCC Taxonomy Code: 207X00000X
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.
NUCC Taxonomy Code: 207XS0117X
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.
NUCC Taxonomy Code: 207XS0117X
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20121024000126
MI
4587814736
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
Munson Healthcare Otsego Memorial Hospital
1619 Anderson Rd, Petoskey, MI 497709256
Phone: 2314176000
Munson Medical Center
8881 M, Harbor Springs, MI 497409816
Phone: 2319355880
Secondary Practice Locations
2585 W Houghton Lake Dr
Prudenville, MI 486519624
Phone: 9893662900
14695 Park Ave Ste A
Charlevoix, MI 497201920
Phone: 2315472812
2147 Professional Dr
Gaylord, MI 497350003
Phone: 9897321753
8881 M 119
Harbor Springs, MI 497409816
Phone: 2319355880
1619 Anderson Rd
Petoskey, MI 497709256
Phone: 2314176090
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Physical Medicine & Rehabilitation
Doctor of Osteopathic Medicine (D.O.)
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Osteopathic Medicine (D.O.)
Orthopaedic Surgery
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Orthopaedic Surgery (license number reported to NPPES: MI FW3427944)
Orthopaedic Surgery (license number reported to NPPES: MI 5101019210)
Registered at 819 N SHIAWASSEE ST STE 200, OWOSSO, MI 488671601 (Tel: 9895412663)
Registered at 819 N SHIAWASSEE ST STE 200, OWOSSO, MI 488671601 (Tel: 9895412663)
Registered at 818 W KING ST STE LL, OWOSSO, MI 48867 (Tel: 9897297780)
Registered at 818 W KING ST STE LL, OWOSSO, MI 48867 (Tel: 9897297780)
Recorded as BRETT WALKER, DO
NPI status registered as active in NPPES database
Registered at 4 COLUMBUS AVE STE 160, BAY CITY, MI 487086478 (Tel: 9893932777)
Registered at 4 COLUMBUS AVE STE 160, BAY CITY, MI 487086478 (Tel: 9893932777)
Recorded as BRETT WALKER, D.O
Orthopaedic Surgery (license number reported to NPPES: MI FW3427944)
NPI status registered as active in NPPES database
Registered at 908 JEFFERSON ST, SEATTLE, WA 981042433 (Tel: 2067449340)
Registered at PO BOX 50095, SEATTLE, WA 981455095 (Tel: 2065436420)
Recorded as BRETT WALKER, D.O
Orthopaedic Surgery (license number reported to NPPES: WA OP60637977)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Owosso
Healthcare providers in OwossoMailing Address
819 N Shiawassee St Ste 200
Owosso, MI 488671601
Phone: 9895412663