Active NPI 1114174265 Individual Practitioner Male Practitioner

Dr. Gregory N Nelson , MD

Orthopaedic Surgery • Bridgeton, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Nelson, MD is a certified Orthopaedic Surgery practicing in Bridgeton, MO. With approximately 18 years of clinical experience since graduating from Yale University School Of Medicine in 2008, Dr. Nelson delivers high-quality medical care to the local community at 12349 DE PAUL DR STE 100.

Dr. Nelson is affiliated with Orthopedic Associates Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include aspiration and/or injection of fluid from large joint, established patient outpatient office visit, x-ray of shoulder, minimum of 2 views. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

12349 De Paul Dr Ste 100

Bridgeton, MO 630442512

Telephone 3142917900

Associated Practice Facility / Clinic

🏢 Ssm Depaul Medical Group Facility NPI 1174962922

Medicare Profile & Education

Medical School

Yale University School Of Medicine

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Bridgeton, MO

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs -11.7 yrs vs City Avg

City Avg: 29.7 Yrs

State Avg: 25.7 Yrs

Regional Practice Density

9 Specialists

Practicing in Bridgeton, MO (550 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

65.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Nelson (18 Years) 18 Yrs

Bridgeton Specialty Average (29.7 Years) 29.7 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
20610 Aspiration and/or injection of fluid from large joint	93	68	$193.72	$48.64
99213 Established patient office or other outpatient visit, typically 15 minutes	71	52	$113.38	$61.99
73030 X-ray of shoulder, minimum of 2 views	35	26	$75.60	$8.70
73564 X-ray of knee, 4 or more views	33	23	$75.60	$10.67
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	29	$319.63	$127.11
73562 X-ray of knee, 3 views	24	19	$58.80	$8.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$171.85	$78.87
73502 X-ray of hip, 2-3 views	20	12	$112.80	$10.33
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$300.00	$124.75
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	11	$50.00	$33.84

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
20610 Aspiration and/or injection of fluid from large joint	87	66	$192.67	$45.74
99213 Established patient office or other outpatient visit, typically 15 minutes	82	71	$107.37	$60.90
73030 X-ray of shoulder, minimum of 2 views	37	28	$84.97	$8.90
73502 X-ray of hip, 2-3 views	36	31	$118.68	$10.57
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	35	35	$168.80	$80.71
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	30	$318.15	$132.11
73562 X-ray of knee, 3 views	29	23	$84.08	$8.91
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	24	24	$300.00	$126.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	22	$37.30	$28.91
73564 X-ray of knee, 4 or more views	22	16	$99.96	$10.88
27130 Replacement of thigh bone and hip joint with prosthesis	13	13	$5203.00	$1254.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$321.73	$129.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	87	75	$99.48	$64.73
20610 Aspiration and/or injection of fluid from large joint	80	65	$59.98	$47.38
73030 X-ray of shoulder, minimum of 2 views	50	35	$30.00	$9.14
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	49	46	$187.65	$141.38
73502 X-ray of hip, 2-3 views	40	33	$30.00	$10.84
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	38	37	$59.95	$52.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$118.64	$81.25
73564 X-ray of knee, 4 or more views	33	25	$30.00	$10.83
73562 X-ray of knee, 3 views	25	20	$30.00	$9.16
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$300.00	$132.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	15	$60.00	$35.86
27130 Replacement of thigh bone and hip joint with prosthesis	16	16	$4524.00	$1274.83
27447 Replacement of knee joint, both sides of knee	13	13	$4836.00	$1269.62
27245 Treatment of broken neck of thigh bone with bone implant	12	12	$2964.00	$1218.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
20610 Aspiration and/or injection of fluid from large joint	100	73	$74.27	$50.69
99213 Established patient office or other outpatient visit, typically 15 minutes	58	46	$100.09	$62.74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	53	52	$289.25	$134.37
73564 X-ray of knee, 4 or more views	42	28	$30.00	$11.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	41	39	$131.83	$94.85
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	36	31	$184.58	$137.15
73562 X-ray of knee, 3 views	34	23	$24.53	$9.32
73502 X-ray of hip, 2-3 views	32	26	$30.00	$11.05
73030 X-ray of shoulder, minimum of 2 views	29	21	$30.00	$9.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$119.32	$81.79
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	22	22	$185.23	$135.35
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	18	$63.55	$35.31
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	19	19	$61.89	$52.51
27447 Replacement of knee joint, both sides of knee	13	12	$4836.00	$1134.24
27245 Treatment of broken neck of thigh bone with bone implant	11	11	$2964.00	$1236.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
20610 Aspiration and/or injection of fluid from large joint	121	90	$67.45	$51.69
99213 Established patient office or other outpatient visit, typically 15 minutes	117	96	$71.79	$51.15
73030 X-ray of shoulder, minimum of 2 views	56	35	$30.00	$9.61
73502 X-ray of hip, 2-3 views	47	33	$30.00	$11.36
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	45	40	$105.51	$78.24
73562 X-ray of knee, 3 views	45	32	$24.00	$9.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	42	42	$93.33	$74.70
73564 X-ray of knee, 4 or more views	39	29	$30.00	$11.39
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	30	28	$62.93	$52.95
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	28	24	$31.64	$25.98
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	26	25	$268.31	$138.08
27130 Replacement of thigh bone and hip joint with prosthesis	14	14	$4524.00	$1386.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
20610 Aspiration and/or injection of fluid from large joint	148	108	$67.81	$52.21
99213 Established patient office or other outpatient visit, typically 15 minutes	137	108	$57.16	$50.47
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	94	94	$88.29	$74.75
73502 X-ray of hip, 2-3 views	68	44	$25.74	$11.36
73030 X-ray of shoulder, minimum of 2 views	66	40	$21.82	$9.73
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	54	54	$211.80	$137.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	47	45	$89.70	$76.97
73610 X-ray of ankle, minimum of 3 views	39	14	$20.51	$8.89
73564 X-ray of knee, 4 or more views	39	31	$26.79	$11.95
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	28	26	$28.21	$25.62
73562 X-ray of knee, 3 views	21	17	$20.95	$9.58
27130 Replacement of thigh bone and hip joint with prosthesis	15	15	$4021.33	$1393.56
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	13	13	$63.69	$52.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
20610 Aspiration and/or injection of fluid from large joint	80	60	$59.14	$49.10
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	79	79	$85.54	$75.44
99213 Established patient office or other outpatient visit, typically 15 minutes	77	61	$56.19	$50.94
73030 X-ray of shoulder, minimum of 2 views	49	29	$20.00	$9.49
73502 X-ray of hip, 2-3 views	43	27	$25.00	$11.25
73564 X-ray of knee, 4 or more views	40	33	$25.00	$11.25
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	33	$186.00	$136.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	25	$84.00	$78.01
73562 X-ray of knee, 3 views	25	12	$20.00	$9.48
73560 X-ray of knee, 1-2 views	17	11	$20.00	$8.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	244	56	$4.25	$1.76
73030 X-ray of shoulder, minimum of 2 views	81	63	$78.85	$28.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	71	60	$267.70	$106.33
20610 Aspiration and/or injection of fluid from large joint	51	51	$156.85	$61.77
99213 Established patient office or other outpatient visit, typically 15 minutes	27	26	$181.38	$72.40
99213 Established patient office or other outpatient visit, typically 15 minutes	23	22	$98.70	$49.30
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$268.38	$106.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$93.90	$75.91
20610 Aspiration and/or injection of fluid from large joint	13	12	$83.58	$46.22
27447 Replacement of knee joint, both sides of knee	12	12	$6472.92	$208.51

Medical Specialties & State Licenses

CMS Verified: 2020-11-19

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License MO 2017006909

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.

Specialist

NUCC Taxonomy Code: 174400000X

State License AZ 49237

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License NJ 25MA09367900

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License PA MD448629

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License AZ 49237

Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery

NUCC Taxonomy Code: 207XS0114X

State License AZ 49237

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, adult reconstructive orthopaedic surgeons deal with reconstructive procedures such as joint arthroplasty (i.e., hip and knee), osteotomy, arthroscopy, soft-tissue reconstruction, and a variety of other adult reconstructive surgical procedures.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

PENDING (AZ)

Hospital & Practice Group Affiliations

Orthopedic Associates Llc

1050 Old Des Peres Rd, Saint Louis, MO 631311873

Phone: 3145690612

Secondary Practice Locations

18444 N 25th Ave, Ste 310

Phoenix, AZ 850231266

Phone: 6235375600

Practice Associates & Co-Workers

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

17 Associated Practitioners

Dr. Crystel Knierim , MD

Orthopaedic Surgery

NPI 1023034857

Doctor of Medicine (M.D.)

Laura Fischer

Physician Assistant

NPI 1023638038

Dr. Syed Abdul Khader , MD

Physical Medicine & Rehabilitation

NPI 1043262009

Doctor of Medicine (M.D.)

Dr. Terry Weis , DO

Orthopaedic Surgery

NPI 1154347995

Doctor of Osteopathic Medicine (D.O.)

Dr. Randall Roush , MD

Orthopaedic Surgery

NPI 1255357091

Doctor of Medicine (M.D.)

Dr. Christian Oliver , MD

Pain Medicine - Interventional Pain Medicine

NPI 1316387327

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location November 19, 2020

Registered at 12349 DE PAUL DR STE 100, BRIDGETON, MO 630442512 (Tel: 3142917900)

📍

Updated Business Mailing Address November 19, 2020

Registered at PO BOX 955534, SAINT LOUIS, MO 631955534

✅

NPI Profile Active June 26, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location June 26, 2014

Registered at 18444 N 25TH AVE, STE 310, PHOENIX, AZ 850231266 (Tel: 6235375600)

📍

Updated Business Mailing Address June 26, 2014

Registered at 925 CHESTNUT ST, 5TH FLOOR, PHILADELPHIA, PA 191074216 (Tel: 2673393500)

👤

Provider Name / Credentials Updated June 26, 2014

Recorded as GREGORY NELSON, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 26, 2014

Specialist (License #49237 in AZ)

🟢

Initial NPI Registration & Enumeration August 20, 2008

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: 1114174265

Entity Type:

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

Enumeration Date: August 20, 2008

Last Update: November 19, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 955534

Saint Louis, MO 631955534

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.