Derek Richard Madden , PA-C
Physician Assistant โข Boston, MA
800 Washington St, Department Of Orthopaedic Surgery
Boston, MA 02111
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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NPI assigned on April 24, 2020; this date does not establish years in practice.
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Published CMS data list 336 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 99285 โ Emergency department visit with high level of medical decision making: 81 service units.
- 93042 โ Electrocardiogram (ecg) 1 to 3 leads with review by physician only: 79 service units.
- 99214 โ Established patient outpatient office visit: 61 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). 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 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:
- Meloxicam 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 Part D prescriptions than 90% of clinicians listed under Physician Assistant in Boston, MA (2024, 576 clinicians with data). Median for this group: 94. Middle half: 28 to 308.
Fewer Part D prescriptions than 90% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,246 clinicians with data). Median for this group: 175. Middle half: 52 to 562.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 220 in 2021 to 336 in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2022.
Practice Location & Contact Primary Location
800 Washington St
Department Of Orthopaedic Surgery
Boston, MA 02111
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: Pratt Orthopaedic Associates 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
2020
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $30,147 in 2022
The total amount Medicare approved for these services in 2022. 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, 2022.
Paid by Medicare
About $24,779 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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, 2022.
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
$15 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 $22.55 in 2025
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 2025.
Years since graduation
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 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
2020
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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)
Derek Madden 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 Derek Madden 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 D prescriptions
Fewer Part D prescriptions than 90% of clinicians listed under Physician Assistant in Boston, MA (2024, 576 clinicians with data). Median for this group: 94. Middle half: 28 to 308.
Fewer Part D prescriptions than 90% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,246 clinicians with data). Median for this group: 175. Middle half: 52 to 562.
Part D drug cost
A lower Part D drug cost than 95% of clinicians listed under Physician Assistant in Boston, MA (2024, 576 clinicians with data). Median for this group: $1,279. Middle half: $294 to $24,509.
A lower Part D drug cost than 95% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,246 clinicians with data). Median for this group: $2,475. Middle half: $458 to $50,611.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Derek Madden are from 2022.
1,694 active clinicians are listed under Physician Assistant with a practice address in Boston, MA (4,768 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boston
15.1% of these 1,694 clinicians have the CMS telehealth indicator.
56.2% of these 1,694 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 increased 53% from 220 in 2021 to 336 in 2022.
- 2021: 220
- 2022: 336
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Medicare-allowed amount
Medicare-allowed amount increased 71% from $17,654 in 2021 to $30,147 in 2022.
- 2021: $17,654
- 2022: $30,147
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Paid by Medicare
Paid by Medicare increased 63% from $15,164 in 2021 to $24,779 in 2022.
- 2021: $15,164
- 2022: $24,779
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 50% from 24 in 2022 to 12 in 2024.
- 2022: 24
- 2024: 12
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30-day fills
30-day fills decreased 50% from 24 in 2022 to 12 in 2024.
- 2022: 24
- 2024: 12
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Part D drug cost
Part D drug cost went from $218 in 2022 to $15 in 2024.
- 2022: $218
- 2024: $15
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $15.24 in 2023 to $22.55 in 2025.
- 2023: $15.24
- 2025: $22.55
Sources: CMS Medicare Physician & Other Practitioners (2022), 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 $22.55.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Orthofix Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Physio-Stim | General | $22.55 |
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 2020โ2021 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, 2021โ2022; 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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99285
Emergency department visit with high level of medical decision making
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81 | 80 | $1091.00 | $158.78 |
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93042
Electrocardiogram (ecg) 1 to 3 leads with review by physician only
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79 | 76 | $45.00 | $6.24 |
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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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61 | 60 | $278.00 | $90.44 |
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99284
Emergency department visit with moderate level of medical decision making
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56 | 55 | $885.00 | $109.46 |
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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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20 | 20 | $391.00 | $134.04 |
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99283
Emergency department visit with low level of medical decision making
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20 | 19 | $391.00 | $64.72 |
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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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19 | 18 | $181.00 | $61.66 |
Source: CMS Part B by Provider and Service, 2022; 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 |
|---|---|---|---|---|---|
| Meloxicam | Meloxicam | 12 | 351 | $15.36 | 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: 2023-06-30NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20210719001064
MA
4688076375
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
Pratt Orthopaedic Associates Inc
800 Washigton St, Boston, MA 021111552
Phone: 6176365000
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.)
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant - Surgical
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 800 WASHINGTON ST, DEPARTMENT OF ORTHOPAEDIC SURGERY, BOSTON, MA 02111 (Tel: 6176367846)
Registered at 800 WASHINGTON STREET, DEPARTMENT OF ORTHOPEDICS, BOSTON, MA 02111 (Tel: 6176367846)
Recorded as DEREK MADDEN, PA-C
Physician Assistant (license number reported to NPPES: MA PA7905)
NPI status registered as active in NPPES database
Registered at 39 HIGH ST APT 2, CHARLESTOWN, MA 021293350 (Tel: 6038099414)
Registered at 39 HIGH ST APT 2, CHARLESTOWN, MA 021293350 (Tel: 6038099414)
Recorded as DEREK MADDEN
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Boston
- Laura Donovan, PA-C
- Amy Bacalia, PA
- Tayler Stander, PA-C
- Caroline Rizzo
- Michaela Smith
- Trang Chan, PA-C
Mailing Address
800 Washington Street, Department Of Orthopedics
Boston, MA 02111
Phone: 6176367846