Dr. David C Ayers , MD
Orthopaedic Surgery โข Worcester, MA
119 Belmont St, Department Of Orthopedic Surgery
Worcester, MA 016052903
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. David Ayers is listed in NPPES under Orthopaedic Surgery.
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NPI assigned on October 26, 2005; this date does not establish years in practice.
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Published CMS data list 339 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:
- 99213 โ Established patient outpatient office visit: 142 service units.
- 99215 โ Established patient outpatient office visit: 61 service units.
- 99214 โ Established patient outpatient office visit: 56 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 all 7 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 87 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:
- Celecoxib โ 49 prescription fills, including refills.
- Amoxicillin โ 22 prescription fills, including refills.
- Naproxen โ 16 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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Close to the middle for Medicare Part B services among clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: 501. Middle half: 223 to 1,066.
Fewer Medicare Part B services than 75% 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 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 454 in 2020 to 339 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
119 Belmont St
Department Of Orthopedic Surgery
Worcester, MA 016052903
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: Umass Memorial Medical Group 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
208 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 $68,929 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 $52,505 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
95 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
$657 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $17.68 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
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, โDoes your provider accept Medicare as full payment?โ
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. Ayers 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. Ayers 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 Worcester 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 Worcester, MA (2024, 30 clinicians with data). Median for this group: 501. Middle half: 223 to 1,066.
Fewer Medicare Part B services than 75% 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
Close to the middle for clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: $70,309. Middle half: $23,397 to $144,117.
A lower Medicare-allowed amount than 60% 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
Close to the middle for clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 30 clinicians with data). Median for this group: $52,909. Middle half: $16,807 to $110,014.
A lower Medicare payment amount than 60% 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.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 19 clinicians with data). Median for this group: 80. Middle half: 34 to 119.
Close to the middle for clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 319 clinicians with data). Median for this group: 81. Middle half: 36 to 226.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Orthopaedic Surgery in Worcester, MA (2024, 19 clinicians with data). Median for this group: $245. Middle half: $76 to $748.
Close to the middle for clinicians listed under Orthopaedic Surgery in Massachusetts (2024, 319 clinicians with data). Median for this group: $460. Middle half: $145 to $1,460.
45 active clinicians are listed under Orthopaedic Surgery with a practice address in Worcester, MA (692 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Worcester
13.3% of these 45 clinicians have the CMS telehealth indicator.
75.6% of these 45 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 decreased 25% from 454 in 2020 to 339 in 2024.
- 2020: 454
- 2021: 597
- 2022: 489
- 2023: 426
- 2024: 339
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Medicare-allowed amount
Medicare-allowed amount decreased 19% from $85,186 in 2020 to $68,929 in 2024.
- 2020: $85,186
- 2021: $124,459
- 2022: $73,480
- 2023: $73,722
- 2024: $68,929
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Paid by Medicare
Paid by Medicare decreased 20% from $65,554 in 2020 to $52,505 in 2024.
- 2020: $65,554
- 2021: $95,969
- 2022: $55,420
- 2023: $56,213
- 2024: $52,505
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 102% from 43 in 2020 to 87 in 2024.
- 2020: 43
- 2021: 66
- 2022: 47
- 2023: 78
- 2024: 87
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30-day fills
30-day fills increased 114% from 44 in 2020 to 95 in 2024.
- 2020: 44
- 2021: 67
- 2022: 49
- 2023: 80
- 2024: 95
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Part D drug cost
Part D drug cost went from $425 in 2020 to $657 in 2024.
- 2020: $425
- 2021: $1,414
- 2022: $391
- 2023: $681
- 2024: $657
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $66.42 in 2019 to $17.68 in 2024.
- 2019: $66.42
- 2021: $2,500.00
- 2024: $17.68
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $17.68.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Paragon 28, Inc. |
Food and Beverage
Cash or cash equivalent
|
Bun-Yo-Matic | General | $17.68 |
Source: CMS Open Payments, program year 2024, 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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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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142 | 110 | $300.00 | $66.21 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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61 | 50 | $615.89 | $144.02 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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56 | 53 | $445.00 | $96.59 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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33 | 33 | $547.00 | $132.21 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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18 | 18 | $684.00 | $182.28 |
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27447
Replacement of knee joint, both sides of knee
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15 | 15 | $7351.00 | $1299.07 |
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27447
Replacement of knee joint, both sides of knee
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14 | 14 | $7351.00 | $1300.21 |
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 |
|---|---|---|---|---|---|
| Celecoxib | Celecoxib | 49 | 1,565 | $622.16 | 21 |
| Amoxicillin | Amoxicillin | 22 | 25 | $9.47 | 11 |
| Naproxen | Naproxen | 16 | 540 | $25.11 | 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: 2020-10-27NUCC 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
I20080402000308
MA
5698745065
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
Umass Memorial Medical Group Inc
55 Lake Ave N, Worcester, MA 016550002
Phone: 5083341000
Umass Memorial Medical Group Inc
119 Belmont St, Worcester, MA 016052903
Phone: 5083341000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Acute Care
Nurse Practitioner
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 119 BELMONT ST, DEPARTMENT OF ORTHOPEDIC SURGERY, WORCESTER, MA 016052903 (Tel: 5083343170)
Registered at PO BOX 415348, BOSTON, MA 022410001 (Tel: 8002258885)
Recorded as DAVID AYERS, M.D.
Orthopaedic Surgery (license number reported to NPPES: MA 217015)
NPI status registered as active in NPPES database
Registered at 119 BELMONT ST, DEPARTMENT OF ORTHOPEDIC SURGERY, WORCESTER, MA 016052903 (Tel: 5083349750)
Registered at PO BOX 415348, BOSTON, MA 022410001 (Tel: 8002258885)
Recorded as DAVID AYERS, M.D.
Orthopaedic Surgery (license number reported to NPPES: MA 217015)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Worcester
- Dr. Matthew Defazio, MD
- Dr. Marshall Katzen, MD
- Dr. Daniel Aaron, MD
- Dr. Alexander Connaughton, MD
- Dr. Daniel Mandell, MD
- Dr. Christina Kane, MD
Mailing Address
Po Box 415348
Boston, MA 022410001
Phone: 8002258885