Active NPI 1457390957 Individual Practitioner Male Practitioner

Dr. John D Patterson , MD

Orthopaedic Surgery • Wilmington, DE

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Patterson, MD is a certified Orthopaedic Surgery practicing in Wilmington, DE. With approximately 31 years of clinical experience since graduating from Harvard Medical School in 1995, Dr. Patterson delivers high-quality medical care to the local community at 1941 LIMESTONE RD STE 101.

Dr. Patterson is affiliated with Regional Orthopaedic Associates Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, dexamethasone sodium phosphate, 1 mg, established patient outpatient office visit, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1941 Limestone Rd Ste 101

Wilmington, DE 198085413

Telephone 3026559494

Fax 3026911478

Associated Practice Facility / Clinic

🏢 Regional Orthopaedic Associates Pa Facility NPI 1194735779

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Wilmington, DE

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +7.1 yrs vs City Avg

City Avg: 23.9 Yrs

State Avg: 20.4 Yrs

Regional Practice Density

35 Specialists

Practicing in Wilmington, DE (81 Statewide)

Telehealth Adoption Rate

2.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

83.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Patterson (31 Years) 31 Yrs

Wilmington Specialty Average (23.9 Years) 23.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	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, typically 15 minutes	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	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 bones	17	17	$1879.00	$325.79
20605 Aspiration and/or injection of medium joint or joint capsule	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

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	327	271	$915.60	$177.02
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	210	176	$653.19	$126.01
J1100 Injection, dexamethasone sodium phosphate, 1 mg	139	105	$0.83	$0.13
73100 X-ray of wrist, 2 views	125	62	$149.84	$34.24
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	122	122	$1124.02	$217.52
20550 Injection into tendon or ligament	104	87	$302.69	$56.82
64721 Release and/or relocation of hand nerve	82	77	$2546.34	$359.28
26055 Incision of tendon covering	75	54	$3281.60	$235.26
64718 Release and/or relocation of elbow nerve	49	48	$3170.20	$589.79
73070 X-ray of elbow, 2 views	44	24	$134.09	$29.52
99213 Established patient office or other outpatient visit, typically 15 minutes	43	40	$463.26	$89.81
73140 X-ray of finger, minimum of 2 views	42	26	$150.00	$38.27
73130 X-ray of hand, minimum of 3 views	41	28	$145.61	$37.25
73110 X-ray of wrist, minimum of 3 views	35	22	$173.43	$41.34
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$853.10	$165.53
25290 Incision of tendon of forearm and/or wrist, open procedure	18	18	$2256.67	$221.12
Q4010 Cast supplies, short arm cast, adult (11 years +), fiberglass	17	12	$40.53	$22.77
20550 Injection into tendon or ligament	15	13	$296.67	$18.08
25600 Closed treatment of broken forearm bones	14	14	$1785.71	$349.85
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	14	14	$5385.00	$1057.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	488	368	$930.00	$180.89
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	183	183	$1139.95	$222.90
J1100 Injection, dexamethasone sodium phosphate, 1 mg	151	121	$0.86	$0.12
73100 X-ray of wrist, 2 views	139	71	$110.00	$35.25
20550 Injection into tendon or ligament	124	102	$307.26	$58.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	106	$660.00	$129.84
64721 Release and/or relocation of hand nerve	80	70	$2598.75	$370.10
26055 Incision of tendon covering	66	55	$3160.00	$255.27
73110 X-ray of wrist, minimum of 3 views	50	27	$130.00	$42.51
64718 Release and/or relocation of elbow nerve	42	35	$3342.86	$631.79
73130 X-ray of hand, minimum of 3 views	38	25	$120.00	$38.04
99213 Established patient office or other outpatient visit, typically 15 minutes	36	34	$470.00	$92.32
25290 Incision of tendon of forearm and/or wrist, open procedure	28	28	$2270.00	$225.05
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	28	28	$5440.00	$1077.27
25600 Closed treatment of broken forearm bones	26	26	$1790.00	$354.12
73140 X-ray of finger, minimum of 2 views	25	20	$120.00	$38.98
73070 X-ray of elbow, 2 views	24	17	$100.00	$30.30
20605 Aspiration and/or injection of medium joint or joint capsule	20	18	$290.00	$53.13
76000 Imaging guidance for procedure, 60 minutes or less	11	11	$140.00	$15.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	390	305	$920.40	$182.37
J1100 Injection, dexamethasone sodium phosphate, 1 mg	148	102	$1.00	$0.15
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	135	135	$1131.00	$226.19
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	124	94	$651.27	$129.30
73100 X-ray of wrist, 2 views	100	55	$69.67	$33.27
20550 Injection into tendon or ligament	93	79	$296.48	$57.74
64721 Release and/or relocation of hand nerve	69	68	$2442.16	$395.79
26055 Incision of tendon covering	55	40	$3192.22	$245.67
99213 Established patient office or other outpatient visit, typically 15 minutes	43	40	$462.44	$92.16
73130 X-ray of hand, minimum of 3 views	35	27	$74.57	$37.63
25290 Incision of tendon of forearm and/or wrist, open procedure	26	26	$2270.00	$226.99
20550 Injection into tendon or ligament	25	18	$298.28	$20.36
73110 X-ray of wrist, minimum of 3 views	25	18	$83.36	$39.26
64718 Release and/or relocation of elbow nerve	25	25	$3094.04	$584.82
25600 Closed treatment of broken forearm bones	21	21	$1762.86	$353.59
20605 Aspiration and/or injection of medium joint or joint capsule	21	18	$276.38	$51.67
73140 X-ray of finger, minimum of 2 views	18	14	$77.00	$36.97
29075 Application of elbow to finger cast	18	13	$446.28	$89.62
73070 X-ray of elbow, 2 views	18	11	$59.50	$30.15
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	17	17	$5437.00	$1087.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg	533	113	$1.00	$0.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	378	285	$560.00	$110.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	157	157	$554.00	$110.00
99213 Established patient office or other outpatient visit, typically 15 minutes	102	83	$386.00	$76.11
20550 Injection into tendon or ligament	100	86	$293.55	$56.92
64721 Release and/or relocation of hand nerve	74	65	$2483.24	$402.77
73100 X-ray of wrist, 2 views	68	38	$101.00	$27.04
26055 Incision of tendon covering	62	51	$2870.00	$249.50
20550 Injection into tendon or ligament	32	24	$464.38	$21.84
64718 Release and/or relocation of elbow nerve	28	26	$3139.00	$592.91
25600 Closed treatment of broken forearm bones	25	25	$1745.00	$347.97
73130 X-ray of hand, minimum of 3 views	24	17	$108.00	$25.86
25290 Incision of tendon of forearm and/or wrist, open procedure	24	23	$2296.00	$228.24
73110 X-ray of wrist, minimum of 3 views	19	16	$120.00	$35.12
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	17	17	$5862.71	$1132.74
26600 Closed treatment of fracture hand bone	12	11	$1559.00	$298.44
76000 Imaging guidance for procedure, 60 minutes or less	12	12	$95.67	$15.98
20600 Aspiration and/or injection of fluid from small joint	11	11	$312.00	$55.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0775 Injection, collagenase, clostridium histolyticum, 0.01 mg	1,170	13	$90.00	$45.89
J1100 Injection, dexamethasone sodium phosphate, 1 mg	916	172	$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	455	360	$560.00	$108.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	194	194	$560.00	$108.48
99213 Established patient office or other outpatient visit, typically 15 minutes	192	158	$383.00	$74.22
20550 Injection into tendon or ligament	160	125	$290.85	$54.34
64721 Release and/or relocation of hand nerve	97	91	$2316.64	$353.79
73100 X-ray of wrist, 2 views	79	41	$165.00	$23.38
26055 Incision of tendon covering	57	50	$2975.00	$246.03
64718 Release and/or relocation of elbow nerve	49	48	$3139.00	$596.76
20605 Aspiration and/or injection of medium joint or joint capsule	30	28	$264.00	$52.14
20550 Injection into tendon or ligament	28	23	$277.00	$19.89
20600 Aspiration and/or injection of fluid from small joint	25	21	$273.24	$52.00
73070 X-ray of elbow, 2 views	22	14	$140.00	$17.72
25290 Incision of tendon of forearm and/or wrist, open procedure	20	20	$2307.00	$227.28
25600 Closed treatment of broken forearm bones	16	16	$1729.00	$340.86
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	16	16	$5561.00	$1096.14
26341 Manipulation of palm pretendinous cord following enzyme injection	13	13	$534.00	$105.28
20527 Injection of medication into palm	13	13	$440.00	$86.83
25000 Incision to repair tendon covering at wrist	12	12	$1785.00	$175.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg	776	154	$1.00	$0.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	415	312	$556.00	$104.38
99213 Established patient office or other outpatient visit, typically 15 minutes	218	164	$377.00	$71.21
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	171	171	$559.00	$105.65
20550 Injection into tendon or ligament	136	110	$285.15	$52.11
73100 X-ray of wrist, 2 views	94	43	$163.00	$17.25
64721 Release and/or relocation of hand nerve	80	69	$2270.00	$351.93
26055 Incision of tendon covering	61	49	$2981.08	$247.52
64718 Release and/or relocation of elbow nerve	44	41	$3136.00	$557.06
20605 Aspiration and/or injection of medium joint or joint capsule	37	35	$278.27	$51.03
20600 Aspiration and/or injection of fluid from small joint	28	25	$259.96	$47.06
73130 X-ray of hand, minimum of 3 views	25	18	$165.00	$18.89
20550 Injection into tendon or ligament	24	20	$288.54	$18.18
25290 Incision of tendon of forearm and/or wrist, open procedure	20	20	$2306.00	$218.83
25600 Closed treatment of broken forearm bones	17	17	$1731.00	$328.83
76000 Imaging guidance for procedure, 60 minutes or less	12	12	$62.83	$8.71
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	11	11	$5545.00	$1052.47
J1030 Injection, methylprednisolone acetate, 40 mg	11	11	$33.00	$6.01
26600 Closed treatment of fracture hand bone	11	11	$1549.00	$294.30

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	456	321	$554.95	$101.95
J1030 Injection, methylprednisolone acetate, 40 mg	158	127	$17.29	$5.68
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	142	142	$558.93	$103.91
99213 Established patient office or other outpatient visit, typically 15 minutes	118	98	$376.94	$70.43
20550 Injection into tendon or ligament	110	92	$228.19	$50.67
73100 X-ray of wrist, 2 views	97	46	$44.00	$20.54
64721 Release and/or relocation of hand nerve	63	57	$2261.97	$293.38
64718 Release and/or relocation of elbow nerve	51	48	$3123.06	$546.06
26055 Incision of tendon covering	49	36	$1629.00	$232.79
73070 X-ray of elbow, 2 views	30	19	$42.17	$21.46
20550 Injection into tendon or ligament	28	22	$221.79	$20.02
73130 X-ray of hand, minimum of 3 views	27	19	$46.00	$21.16
20605 Aspiration and/or injection of medium joint or joint capsule	25	22	$293.44	$52.11
20600 Aspiration and/or injection of fluid from small joint	25	25	$268.84	$44.03
25290 Incision of tendon of forearm and/or wrist, open procedure	24	24	$2295.96	$217.75
73140 X-ray of finger, minimum of 2 views	21	13	$37.00	$25.71
25600 Closed treatment of broken forearm bones	17	17	$1627.53	$320.21
76000 Imaging guidance for procedure, 60 minutes or less	16	15	$54.13	$8.55
25609 Treatment of 3 or more broken lower forearm bone pieces on thumb side inside wrist joint with placement of stabilizing device	15	15	$5531.00	$1011.40
Q4010 Cast supplies, short arm cast, adult (11 years +), fiberglass	13	11	$97.00	$19.07
26600 Closed treatment of fracture hand bone	11	11	$1461.73	$288.26

Medical Specialties & State Licenses

CMS Verified: 2025-05-15

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License DE C1-0006306

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.

Orthopaedic Surgery - Hand Surgery

NUCC Taxonomy Code: 207XS0106X

State License DE C1-0006306

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.

Hospital & Practice Group Affiliations

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

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

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Physician Assistant

NPI 1023499183

Physician Assistant (Certified)

Dr. Dyllan Taylor , DPT

Physical Therapist

NPI 1043151046

Doctor of Physical Therapy

Brittany Miller , PA

Physician Assistant

NPI 1043909781

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

10 Historical Events

📍

Updated Practice Location May 15, 2025

Registered at 1941 LIMESTONE RD STE 101, WILMINGTON, DE 198085413 (Tel: 3026559494)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 06, 2025

Orthopaedic Surgery (License #C1-0006306 in DE)

📍

Updated Practice Location April 15, 2024

Registered at 4923 OGLETOWN STANTON RD STE 300, NEWARK, DE 197132081 (Tel: 3026559494)

📍

Updated Business Mailing Address April 15, 2024

Registered at 1941 LIMESTONE RD STE 101, WILMINGTON, DE 198085413 (Tel: 3026559494)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 1096 OLD CHURCHMANS RD, NEWARK, DE 197132102 (Tel: 3026559494)

📍

Updated Business Mailing Address July 08, 2007

Registered at 1096 OLD CHURCHMANS RD, NEWARK, DE 197132102 (Tel: 3026559494)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as JOHN PATTERSON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Orthopaedic Surgery (License #C1-0006306 in DE)

🟢

Initial NPI Registration & Enumeration June 06, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1457390957

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 06, 2006

Last Update: May 15, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1941 Limestone Rd Ste 101

Wilmington, DE 198085413

Phone: 3026559494

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.