Dr. John D Patterson , MD
Orthopaedic Surgery โข Wilmington, DE
1941 Limestone Rd Ste 101
Wilmington, DE 198085413
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. John Patterson is listed in NPPES under Orthopaedic Surgery.
-
NPI assigned on June 6, 2006; this date does not establish years in practice.
-
Published CMS data list 2,745 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.
-
Published Part B service records, 2024:
- J1100 โ Injection, dexamethasone sodium phosphate, 1 mg: 1,148 service units.
- 99214 โ Established patient outpatient office visit: 428 service units.
- 99204 โ New patient outpatient office visit: 142 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 22 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 157 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.
-
Published Part D records, 2024:
- Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) โ 126 prescription fills, including refills.
- Oxycodone Hcl โ 31 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
-
More Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: 1,973. Middle half: 902 to 4,526.
Close to the middle for Medicare Part B services among clinicians listed under Orthopaedic Surgery in Delaware (2024, 47 clinicians with data). Median for this group: 4,350. Middle half: 1,409 to 8,772.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 1,678 in 2020 to 2,745 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1941 Limestone Rd Ste 101
Wilmington, DE 198085413
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: Regional Orthopaedic Associates Pa. 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
Harvard Medical School
1995
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
541 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 $236,160 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 $178,860 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
157 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
$563 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: $47.50 across 2 records.
By nature of payment
- Food and Beverage: $47.50 across 2 records.
Reporting-company totals
- Eclipse Technology Solutions Inc.: $33.74 across 1 record.
- Solventum Corporation: $13.76 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
31 years (graduated 1995)
CMS Doctors and Clinicians data list 1995 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
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.
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. Patterson 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. Patterson 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 Wilmington and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: 1,973. Middle half: 902 to 4,526.
Close to the middle for clinicians listed under Orthopaedic Surgery in Delaware (2024, 47 clinicians with data). Median for this group: 4,350. Middle half: 1,409 to 8,772.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: $181,137. Middle half: $96,855 to $266,052.
Close to the middle for clinicians listed under Orthopaedic Surgery in Delaware (2024, 47 clinicians with data). Median for this group: $243,024. Middle half: $121,969 to $428,377.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: $134,956. Middle half: $73,158 to $200,485.
Close to the middle for clinicians listed under Orthopaedic Surgery in Delaware (2024, 47 clinicians with data). Median for this group: $186,991. Middle half: $92,527 to $327,092.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: 151. Middle half: 55 to 297.
Close to the middle for clinicians listed under Orthopaedic Surgery in Delaware (2024, 45 clinicians with data). Median for this group: 186. Middle half: 84 to 404.
Part D drug cost
A lower Part D drug cost than 60% of clinicians listed under Orthopaedic Surgery in Wilmington, DE (2024, 20 clinicians with data). Median for this group: $885. Middle half: $145 to $2,350.
A lower Part D drug cost than 70% of clinicians listed under Orthopaedic Surgery in Delaware (2024, 45 clinicians with data). Median for this group: $1,412. Middle half: $495 to $3,263.
35 active clinicians are listed under Orthopaedic Surgery with a practice address in Wilmington, DE (76 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Wilmington
2.9% of these 35 clinicians have the CMS telehealth indicator.
71.4% of these 35 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.
-
Medicare Part B services
Medicare Part B services increased 64% from 1,678 in 2020 to 2,745 in 2024.
- 2020: 1,678
- 2021: 1,406
- 2022: 1,682
- 2023: 1,545
- 2024: 2,745
-
Medicare-allowed amount
Medicare-allowed amount increased 34% from $176,178 in 2020 to $236,160 in 2024.
- 2020: $176,178
- 2021: $224,343
- 2022: $285,644
- 2023: $235,980
- 2024: $236,160
-
Paid by Medicare
Paid by Medicare increased 34% from $133,392 in 2020 to $178,860 in 2024.
- 2020: $133,392
- 2021: $173,868
- 2022: $214,668
- 2023: $175,911
- 2024: $178,860
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 175% from 57 in 2020 to 157 in 2024.
- 2020: 57
- 2021: 107
- 2022: 163
- 2023: 140
- 2024: 157
-
30-day fills
30-day fills increased 175% from 57 in 2020 to 157 in 2024.
- 2020: 57
- 2021: 107
- 2022: 163
- 2023: 140
- 2024: 157
-
Part D drug cost
Part D drug cost went from $252 in 2020 to $563 in 2024.
- 2020: $252
- 2021: $477
- 2022: $721
- 2023: $615
- 2024: $563
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $67.02 in 2020 to $47.50 in 2025.
- 2020: $67.02
- 2021: $168.51
- 2022: $58.93
- 2023: $44.44
- 2025: $47.50
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 $47.50.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Eclipse Technology Solutions Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $33.74 |
| Solventum Corporation |
Food and Beverage
Cash or cash equivalent
|
ACTIV.A.C. | General | $13.76 |
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 |
|---|---|---|---|---|
|
J1100
Injection, dexamethasone sodium phosphate, 1 mg
|
1,148 | 124 | $1.00 | $0.11 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
428 | 323 | $637.39 | $123.38 |
|
99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
142 | 142 | $831.72 | $158.21 |
|
73100
X-ray of wrist, 2 views
|
128 | 58 | $170.09 | $31.35 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
123 | 107 | $452.57 | $87.70 |
|
20550
Injection into tendon or ligament
|
119 | 98 | $291.94 | $54.59 |
|
64721
Release and/or relocation of hand nerve
|
103 | 92 | $2498.48 | $361.90 |
|
26055
Incision of tendon covering of finger
|
99 | 73 | $2940.13 | $225.11 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
88 | 84 | $863.52 | $176.53 |
|
73130
X-ray of hand, minimum of 3 views
|
50 | 33 | $189.96 | $35.72 |
|
73110
X-ray of wrist, minimum of 3 views
|
49 | 28 | $210.00 | $40.35 |
|
73140
X-ray of finger, minimum of 2 views
|
45 | 23 | $190.29 | $37.33 |
|
64718
Release and/or relocation of elbow nerve
|
43 | 38 | $3162.19 | $594.44 |
|
73070
X-ray of elbow, 2 views
|
36 | 24 | $149.86 | $28.60 |
|
76000
Imaging guidance for procedure, 60 minutes or less
|
28 | 27 | $149.50 | $14.40 |
|
99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
|
22 | 22 | $1056.00 | $207.99 |
|
25290
Incision of tendon of forearm and/or wrist, open procedure
|
20 | 20 | $2250.00 | $218.49 |
|
25600
Closed treatment of broken forearm (radius) bone at the wrist area on the thumb side of the wrist without manipulation
|
17 | 17 | $1879.00 | $325.79 |
|
20605
Aspiration and/or injection of fluid from medium joint
|
16 | 15 | $297.75 | $57.52 |
|
25609
Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device
|
15 | 15 | $5370.00 | $1040.79 |
|
20550
Injection into tendon or ligament
|
14 | 13 | $331.14 | $20.28 |
|
20600
Aspiration and/or injection of fluid from small joint
|
12 | 11 | $262.42 | $52.66 |
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 | 126 | 283 | $391.44 | 122 |
| Oxycodone Hcl | Oxycodone Hcl | 31 | 198 | $171.64 | 29 |
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: 2025-05-15NUCC 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: 207XS0106X
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20040224000474
DE
3971499302
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
Regional Orthopaedic Associates Pa
1941 Limestone Rd, Wilmington, DE 198085413
Phone: 3026559494
Regional Orthopaedic Associates Pa
100 Wilmington W Chester Pike, Chadds Ford, PA 193179040
Phone: 3026559494
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
Occupational Therapist
Occupational Therapist Registered, L
Nurse Practitioner
Advanced Practice Nurse
Physician Assistant
Physician Assistant
Surgery - Plastic and Reconstructive Surgery
Doctor of Medicine (M.D.)
Physical Therapist
Doctor of Physical Therapy
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1941 LIMESTONE RD STE 101, WILMINGTON, DE 198085413 (Tel: 3026559494)
Orthopaedic Surgery (license number reported to NPPES: DE C1-0006306)
Registered at 4923 OGLETOWN STANTON RD STE 300, NEWARK, DE 197132081 (Tel: 3026559494)
Registered at 1941 LIMESTONE RD STE 101, WILMINGTON, DE 198085413 (Tel: 3026559494)
NPI status registered as active in NPPES database
Registered at 1096 OLD CHURCHMANS RD, NEWARK, DE 197132102 (Tel: 3026559494)
Registered at 1096 OLD CHURCHMANS RD, NEWARK, DE 197132102 (Tel: 3026559494)
Recorded as JOHN PATTERSON, M.D.
Orthopaedic Surgery (license number reported to NPPES: DE C1-0006306)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Wilmington
- Dr. Damian Andrisani, MD
- Michael Hileman, PA
- Dr. Victor Kalman, DO
- Dr. David Solacoff, MD
- Dr. Jeffrey Lynch, DO
- Dr. Douglas Palma, MD
Mailing Address
1941 Limestone Rd Ste 101
Wilmington, DE 198085413
Phone: 3026559494