Dr. Jon J P Warner , MD
Orthopaedic Surgery • Boston, MA
55 Fruit Street, Yawkey 3g
Boston, MA 021142696
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. Jon Warner is listed in NPPES under Orthopaedic Surgery.
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NPI assigned on December 12, 2005; this date does not establish years in practice.
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Published CMS data list 590 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 383 service units.
- 99203 — New patient outpatient office visit: 131 service units.
- 23472 — Prosthetic repair of shoulder joint, total shoulder: 37 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 6 records in the table · Guide: How to read Medicare Part B data
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Close to the middle for Medicare Part B services among clinicians listed under Orthopaedic Surgery in Boston, MA (2024, 108 clinicians with data). Median for this group: 523. Middle half: 198 to 991.
Fewer Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: 943. Middle half: 391 to 2,997.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 632 in 2020 to 590 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
55 Fruit Street
Yawkey 3g
Boston, MA 021142696
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Massachusetts General Physicians Organization Inc. 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
University Of Rochester School Of Medicine And Dentistry
1982
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
314 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 – by Provider, 2024.
Medicare-allowed amount
About $157,504 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 – by Provider and Service, 2024.
Paid by Medicare
About $122,110 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 – by Provider and Service, 2024.
Open Payments general payments, program year 2025
All general payments: $2,006,684.12 across 82 records.
By nature of payment (3 largest of 4)
- Royalty or License: $1,908,047.49 across 17 records.
- Consulting Fee: $86,457.50 across 19 records.
- Travel and Lodging: $9,935.84 across 24 records.
Reporting-company totals (3 largest of 7)
- Stryker Corporation: $1,993,757.21 across 69 records.
- Medical Device Business Services, Inc.: $11,858.13 across 6 records.
- EXACTECH, INC.: $498.90 across 3 records.
Research and ownership records are not included in these totals; they are in the table below.
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
44 years (graduated 1982)
CMS Doctors and Clinicians data list 1982 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
2005
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, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Warner 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. Warner 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 Boston and Massachusetts
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Orthopaedic Surgery in Boston, MA (2024, 108 clinicians with data). Median for this group: 523. Middle half: 198 to 991.
Fewer Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: 943. Middle half: 391 to 2,997.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Orthopaedic Surgery in Boston, MA (2024, 108 clinicians with data). Median for this group: $72,139. Middle half: $21,337 to $160,217.
A higher Medicare-allowed amount than 65% of clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: $106,534. Middle half: $39,615 to $188,576.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Orthopaedic Surgery in Boston, MA (2024, 108 clinicians with data). Median for this group: $56,494. Middle half: $16,235 to $122,740.
A higher Medicare payment amount than 65% of clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 379 clinicians with data). Median for this group: $78,919. Middle half: $29,480 to $142,985.
265 active clinicians are listed under Orthopaedic Surgery with a practice address in Boston, MA (692 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
20.8% of these 265 clinicians have the CMS telehealth indicator.
54.3% of these 265 clinicians are listed by CMS as accepting Medicare assignment.
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 stayed about the same: 632 in 2020 and 590 in 2024.
- 2020: 632
- 2021: 653
- 2022: 491
- 2023: 558
- 2024: 590
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Medicare-allowed amount
Medicare-allowed amount increased 12% from $140,208 in 2020 to $157,504 in 2024.
- 2020: $140,208
- 2021: $179,287
- 2022: $98,818
- 2023: $146,269
- 2024: $157,504
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Paid by Medicare
Paid by Medicare increased 13% from $108,507 in 2020 to $122,110 in 2024.
- 2020: $108,507
- 2021: $140,030
- 2022: $75,242
- 2023: $113,437
- 2024: $122,110
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 1210% from $156,983.90 in 2021 to $2,056,743.15 in 2025.
- 2021: $156,983.90
- 2022: $441,288.15
- 2023: $906,120.43
- 2024: $1,430,093.20
- 2025: $2,056,743.15
Sources: CMS Medicare Physician & Other Practitioners (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 · 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 – December 31, 2025): 83 records totaling $2,056,743.15.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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AEQUALIS PERFORM | General | $199,118.32 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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AEQUALIS PERFORM | General | $195,811.19 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $182,393.72 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $181,504.70 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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AEQUALIS PERFORM | General | $176,608.29 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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AEQUALIS PERFORM | General | $172,327.57 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $170,031.94 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $169,378.43 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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TORNIER PERFORM REVERSED GLENOID | General | $93,414.89 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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TORNIER PERFORM REVERSED GLENOID | General | $92,009.18 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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TORNIER PERFORM REVERSED GLENOID | General | $71,365.28 |
| ZuriMED Technologies Inc. |
Equity interest in privately held medical device company
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— | Ownership | $50,059.03 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $48,509.72 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $40,088.37 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $39,498.55 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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ARTHROTUNNELER TUNNELPRO SYSTEM | General | $37,732.84 |
| Stryker Corporation |
Royalty or License
Cash or cash equivalent
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TORNIER PERFORM REVERSED GLENOID | General | $37,072.03 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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AEQUALIS PERFORM | General | $18,425.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $15,950.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
|
AEQUALIS PERFORM | General | $10,725.00 |
| Medical Device Business Services, Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $9,720.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
|
AEQUALIS ASCEND FLEX | General | $6,050.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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AEQUALIS PERFORM | General | $3,850.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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AEQUALIS | General | $3,575.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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TORNIER PERFORM ANATOMIC AUGMENTED GLENOID | General | $3,300.00 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
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 |
|---|---|---|---|---|
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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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383 | 223 | $393.78 | $98.39 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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131 | 131 | $510.35 | $121.54 |
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23472
Prosthetic repair of shoulder joint, total shoulder
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37 | 35 | $8040.54 | $1815.89 |
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29826
Shaving of part of shoulder bone and repair of ligament using an endoscope
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15 | 15 | $3900.00 | $178.58 |
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29827
Repair of shoulder rotator cuff using an endoscope
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13 | 13 | $6807.69 | $1227.56 |
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23472
Prosthetic repair of shoulder joint, total shoulder
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11 | 11 | $8590.91 | $1643.11 |
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.
Specialties & License Numbers Reported to NPPES
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20040702001020
MA
6709863137
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
Massachusetts General Physicians Organization Inc
20 Patriot Pl, Foxborough, MA 020351375
Phone: 8663789164
Massachusetts General Physicians Organization Inc
55 Fruit St, Boston, MA 021142696
Phone: 6177240287
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)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated December 12, 2005.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Boston
- Dr. Young-Min Kwon, MBBS
- Dr. Robert Glen Davis, MD
- Dr. Charles Nessralla, MD
- Dr. Wayne Cohen-Levy, MD
- Dr. Guy Guenthner, MD
- Dr. Leah Demetri, MD
Mailing Address
Po Box 9142
Charlestown, MA 021299142
Phone: 6177247300