Active NPI 1932152980 Individual Practitioner Male Practitioner

Dr. Donald Alan Weimer , MD

Orthopaedic Surgery • O Fallon, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Donald Weimer, MD is a certified Orthopaedic Surgery practicing in O Fallon, IL. With approximately 38 years of clinical experience since graduating from Medical College Of Wisconsin in 1988, Dr. Weimer delivers high-quality medical care to the local community at 1512 N GREEN MOUNT RD.

Dr. Weimer is affiliated with Hshs Medical Group Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include x-ray of shoulder, minimum of 2 views, injection, triamcinolone acetonide, not otherwise specified, 10 mg, established 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

1512 N Green Mount Rd
Suite 300

O Fallon, IL 622691953

Telephone 6186415800

Associated Practice Facility / Clinic

🏢 Health Ventures Of Southern Illinois Llc Facility NPI 1831179415

Medicare Profile & Education

Medical School

Medical College Of Wisconsin

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in O Fallon, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +15.3 yrs vs City Avg

City Avg: 22.7 Yrs

State Avg: 27.0 Yrs

Regional Practice Density

3 Specialists

Practicing in O Fallon, IL (1064 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Weimer (38 Years) 38 Yrs

O Fallon Specialty Average (22.7 Years) 22.7 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
73030 X-ray of shoulder, minimum of 2 views	438	145	$79.92	$17.74
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	376	76	$7.00	$0.95
99213 Established patient office or other outpatient visit, typically 15 minutes	225	155	$178.00	$91.04
20610 Aspiration and/or injection of fluid from large joint	124	81	$186.00	$68.85
73562 X-ray of knee, 3 views	122	51	$100.00	$20.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	80	74	$251.00	$126.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$221.00	$112.82
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	43	11	$398.00	$116.48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	37	36	$267.00	$136.17
23472 Prosthetic repair of shoulder joint, total shoulder	26	26	$3841.00	$1555.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	26	26	$330.00	$166.19
27447 Replacement of knee joint, both sides of knee	19	19	$3410.00	$1387.72
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	17	17	$1221.00	$185.93
29823 Removal of extensive shoulder joint tissue using an endoscope	16	16	$2168.00	$229.16
29824 Partial removal of collar bone at shoulder using an endoscope	13	13	$2332.00	$417.36
29827 Repair of shoulder rotator cuff using an endoscope	12	12	$2829.00	$1064.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	300	61	$7.00	$1.07
73030 X-ray of shoulder, minimum of 2 views	244	100	$65.78	$20.40
99213 Established patient office or other outpatient visit, typically 15 minutes	164	109	$157.29	$89.22
73562 X-ray of knee, 3 views	133	52	$75.88	$23.87
20610 Aspiration and/or injection of fluid from large joint	119	77	$186.00	$71.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	65	$218.81	$128.04
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	62	16	$312.00	$121.53
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$212.82	$113.56
23472 Prosthetic repair of shoulder joint, total shoulder	21	21	$3476.00	$1532.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$319.26	$161.28
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$265.50	$133.73
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	16	16	$1221.00	$167.94
29827 Repair of shoulder rotator cuff using an endoscope	15	15	$2539.00	$1053.21
27447 Replacement of knee joint, both sides of knee	14	13	$3278.86	$1363.90
29824 Partial removal of collar bone at shoulder using an endoscope	13	13	$2332.00	$266.75
29823 Removal of extensive shoulder joint tissue using an endoscope	11	11	$2168.00	$163.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	322	112	$42.45	$17.96
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	270	55	$7.00	$1.16
73562 X-ray of knee, 3 views	184	72	$48.35	$21.26
20610 Aspiration and/or injection of fluid from large joint	134	77	$186.00	$73.67
99213 Established patient office or other outpatient visit, typically 15 minutes	126	87	$135.00	$91.68
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	88	22	$226.00	$128.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	54	47	$201.00	$126.55
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	51	47	$81.00	$57.60
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$203.00	$115.16
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$313.00	$171.21
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	12	12	$1221.00	$176.34
27447 Replacement of knee joint, both sides of knee	12	12	$3104.00	$1389.16
29824 Partial removal of collar bone at shoulder using an endoscope	11	11	$2332.00	$393.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	422	136	$41.76	$17.16
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	380	77	$7.00	$1.27
73562 X-ray of knee, 3 views	228	82	$47.67	$20.26
20610 Aspiration and/or injection of fluid from large joint	165	93	$186.00	$72.03
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	112	90	$81.00	$56.40
99213 Established patient office or other outpatient visit, typically 15 minutes	95	79	$135.00	$92.47
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	93	19	$226.00	$131.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	65	60	$201.00	$131.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$203.00	$115.44
73502 X-ray of hip, 2-3 views	31	17	$38.77	$19.69
23472 Prosthetic repair of shoulder joint, total shoulder	25	25	$3330.00	$1573.94
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$313.00	$173.18
27447 Replacement of knee joint, both sides of knee	20	20	$3104.00	$1398.90
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	14	14	$1221.00	$191.27
29823 Removal of extensive shoulder joint tissue using an endoscope	13	13	$2168.00	$132.99
29824 Partial removal of collar bone at shoulder using an endoscope	12	12	$2332.00	$349.01
29827 Repair of shoulder rotator cuff using an endoscope	11	11	$2394.00	$1157.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	388	122	$44.15	$18.06
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	302	61	$7.00	$1.46
73562 X-ray of knee, 3 views	161	70	$51.47	$22.09
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	138	106	$81.00	$46.18
20610 Aspiration and/or injection of fluid from large joint	123	77	$186.00	$69.67
99213 Established patient office or other outpatient visit, typically 15 minutes	85	72	$135.00	$76.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	70	70	$203.00	$110.64
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	64	16	$226.00	$143.94
23472 Prosthetic repair of shoulder joint, total shoulder	25	25	$3330.00	$1578.98
73560 X-ray of knee, 1-2 views	25	11	$42.16	$17.56
99202 New patient office or other outpatient visit, typically 20 minutes	16	16	$137.00	$77.25
27447 Replacement of knee joint, both sides of knee	13	12	$3104.00	$1405.57
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	11	11	$1221.00	$180.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	447	84	$7.00	$1.58
73030 X-ray of shoulder, minimum of 2 views	220	122	$57.79	$24.42
20610 Aspiration and/or injection of fluid from large joint	194	100	$186.00	$59.35
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	166	121	$81.00	$44.70
73562 X-ray of knee, 3 views	157	96	$64.97	$28.68
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	79	19	$226.00	$141.16
99213 Established patient office or other outpatient visit, typically 15 minutes	48	43	$135.00	$71.77
99202 New patient office or other outpatient visit, typically 20 minutes	42	42	$137.00	$76.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$203.00	$109.96
23472 Prosthetic repair of shoulder joint, total shoulder	21	21	$3330.00	$1587.75
73502 X-ray of hip, 2-3 views	16	12	$72.44	$34.66
27447 Replacement of knee joint, both sides of knee	13	13	$3104.00	$1482.37
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	12	11	$1221.00	$194.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	611	117	$7.00	$1.79
73030 X-ray of shoulder, minimum of 2 views	239	134	$61.92	$22.79
20610 Aspiration and/or injection of fluid from large joint	236	127	$186.00	$57.91
73562 X-ray of knee, 3 views	215	113	$73.39	$26.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	192	142	$81.00	$42.66
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	91	23	$226.00	$141.40
99213 Established patient office or other outpatient visit, typically 15 minutes	71	64	$135.00	$70.14
99202 New patient office or other outpatient visit, typically 20 minutes	39	39	$137.00	$74.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$203.00	$106.13
73502 X-ray of hip, 2-3 views	33	22	$83.30	$26.13
23472 Prosthetic repair of shoulder joint, total shoulder	18	18	$3330.00	$1568.69
27447 Replacement of knee joint, both sides of knee	18	17	$3104.00	$1463.40
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	15	$138.00	$74.46
99201 New patient office or other outpatient visit, typically 10 minutes	16	16	$80.00	$44.41
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope	13	13	$1197.54	$182.79
29824 Partial removal of collar bone at shoulder using an endoscope	11	11	$2279.00	$237.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	744	136	$7.00	$1.77
73030 X-ray of shoulder, minimum of 2 views	366	148	$65.96	$15.43
73562 X-ray of knee, 3 views	294	120	$78.00	$19.20
20610 Aspiration and/or injection of fluid from large joint	276	155	$186.00	$65.87
99213 Established patient office or other outpatient visit, typically 15 minutes	182	138	$135.00	$71.75
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose	147	33	$226.00	$146.52
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	108	98	$81.00	$43.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	88	88	$203.00	$104.86
73502 X-ray of hip, 2-3 views	40	17	$87.00	$20.76
99202 New patient office or other outpatient visit, typically 20 minutes	27	27	$137.00	$74.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	18	$201.00	$106.85
23472 Prosthetic repair of shoulder joint, total shoulder	18	18	$5044.67	$1571.80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$264.00	$140.82

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License IL 036101574

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

Medicaid State Provider ID

036101574 (IL)

Hospital & Practice Group Affiliations

Hshs Medical Group Inc

3 Saint Elizabeth Blvd, O Fallon, IL 622691099

Phone: 6186415803

Practice Associates & Co-Workers

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

3 Associated Practitioners

Timothy Casey , MSED, ATC, CSCS

Rehabilitation Hospital

NPI 1235358722

Master of Science in Education, Certified Athletic Trainer, Certified Strength and Conditioning Specialist

Geofry Manzo , ATC

Specialist/Technologist - Athletic Trainer

NPI 1427024926

Certified Athletic Trainer

Elizabeth Caschetta , MS, ATC

Specialist/Technologist - Athletic Trainer

NPI 1962470989

Master of Science, Certified Athletic Trainer

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active August 20, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location August 20, 2015

Registered at 1512 N GREEN MOUNT RD, SUITE 300, O FALLON, IL 622691953 (Tel: 6186415800)

📍

Updated Business Mailing Address August 20, 2015

Registered at 1512 N GREEN MOUNT RD, SUITE 300, O FALLON, IL 622691953 (Tel: 6186415800)

👤

Provider Name / Credentials Updated August 20, 2015

Recorded as DONALD WEIMER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 20, 2015

Orthopaedic Surgery (License #036101574 in IL)

🟢

Initial NPI Registration & Enumeration May 19, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Donald Weimer. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1932152980

Entity Type:

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

Enumeration Date: May 19, 2006

Last Update: August 20, 2015

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1512 N Green Mount Rd, Suite 300

O Fallon, IL 622691953

Phone: 6186415800

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.