Dr. John Riehl, MD

Orthopedic Surgery
47 procedures 2 hospitals Decatur, AL
Latest available Medicare data — updated April 2026

Contact & Location

Phone: 256-350-0362
Practice phone listed in the NPI registry
1107 14th Ave Se Ste 300
Decatur, AL 35601
NPI: 1487727764
Credentials: MD
Active Medicare provider (NPI verified)
20 years of practice experience
Licensed MD
Licensed surgical specialist
Board-certified orthopedic surgeon
Sports medicine specialist
Contact information available
Find Practice on Google Maps
Knee replacement recovery kit Ice machines, mobility aids, bathroom safety, all under $50
National Comparison by Procedure
Hip 18 vs 36 avg (4,532 surgeons)
Knee 29 vs 45 avg (6,599 surgeons)

Dr. John Riehl is a board-certified orthopedic surgeon practicing in Decatur, Alabama. A Medicare provider since 2006, Dr. Riehl has performed 29 Medicare-verified knee replacements (#46 in Alabama) and 18 hip replacements, for a combined total of 47 procedures.

In Alabama, Dr. Riehl performs near average in knee (29 vs 32 avg), below average in hip (18 vs 26 avg).

Dr. Riehl's reported Medicare volume is split between knee replacements (29 cases) and hip replacements (18 cases).

Beyond general orthopedic surgery, Dr. Riehl holds additional credentials in Adult Reconstructive Orthopaedic Surgery, reflecting subspecialty training that may benefit patients with complex joint conditions.

Decatur is home to 3 orthopedic surgeons in the current Medicare dataset. Patients in the Decatur area can compare surgeon volume and procedure specialization to find the right fit for their joint replacement needs.

Dr. Riehl's Medicare data spans 12 years, beginning in 2013. Volume peaked at 95 procedures in 2013 before settling at 47 in the most recent data. Changes in Medicare reporting, payer mix shifts, or practice focus adjustments can all influence year-to-year volume.

Dr. Riehl's 29 knee replacement procedures is below the national average of 45 among 6,599 surgeons. Medicare data captures roughly a third of all joint replacements, so actual volume is likely higher.

Verified Medicare Cases

Knee Replacement
29 verified cases
#46 in Alabama
Hip Replacement
18 verified cases
#33 in Alabama
Estimated total: 130 – 140 procedures (all insurers)
Based on Medicare FFS representing 33–37% of national joint replacement volume
How is this estimated?

Medicare Part B fee-for-service claims represent approximately 33–37% of all joint replacements performed nationally (source: CMS data, AJRR). This range estimates the surgeon's total practice volume across all payers. The verified Medicare count above is the definitive, audited figure.

How Dr. Riehl Compares

Procedure volume compared to the Alabama state average.

Hip Below Avg
18 Avg: 26
Knee Average
29 Avg: 32
Dr. Riehl Alabama Average

Volume Trend Analysis

Dr. Riehl's recorded volume peaked at 95 procedures in 2013 and stood at 47 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.

Years of Data 12
2024 Volume 47
Peak Volume 95 (2013)
Trend Declining

Hospital Affiliations & Quality

H
Decatur Morgan Hospital-Decatur Campus
3/5
Decatur, AL
Similar to national avg
H
Cullman Regional Medical Center
2/5
Cullman, AL
Similar to national avg

Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.

Patient Resources: Preparing for Knee Replacement

If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:

Knee Replacement Recovery Overview

Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:

Week 1-2 Walking with assistive device. Knee bending exercises begin immediately. Ice therapy and elevation for swelling control.
Week 3-6 Increased range of motion (target 90 degrees). Walking longer distances. Physical therapy intensifies with strengthening exercises.
Week 7-12 Most patients walk without assistive devices. Resume driving and desk work. Continue PT for strength and flexibility.
Month 4-6 Near-full recovery. Resume most recreational activities. Some swelling and stiffness may persist but continues improving.

Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations

Frequently Asked Questions About Dr. Riehl

How does Dr. Riehl's procedure volume compare to other Alabama surgeons?

Dr. Riehl has performed 47 Medicare-verified joint replacement procedures. This is in line with the Alabama average of 44 procedures per surgeon. Dr. Riehl ranks #45 out of 126 orthopedic surgeons in Alabama.

What types of joint replacement does Dr. Riehl perform?

Dr. Riehl's Medicare data shows procedures in knee replacement (29 cases) and hip replacement (18 cases).

Are there other orthopedic surgeons near Dr. Riehl in Decatur?

Yes. There are 3 orthopedic surgeons in Decatur in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Alabama surgeons.

What does the Medicare data for Dr. Riehl represent?

The procedure counts shown are based on the most recent Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). This captures approximately 33–37% of all joint replacements performed nationally. Dr. Riehl's total practice volume — including private insurance and Medicare Advantage patients — is likely higher than the 47 procedures shown here.

Has Dr. Riehl's procedure volume changed over time?

Dr. Riehl's Medicare-recorded volume peaked at 95 procedures in 2013 and was 47 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.

Does Dr. Riehl perform more than one type of joint replacement?

Yes. Dr. Riehl's Medicare data shows procedures in knee replacement (29 cases), hip replacement (18 cases). Surgeons who perform multiple joint replacement types maintain broad technical skills across different anatomical joints.

Which hospitals is Dr. Riehl affiliated with?

According to CMS facility affiliation data, Dr. Riehl is affiliated with Decatur Morgan Hospital-Decatur Campus, Cullman Regional Medical Center.

How does Dr. Riehl compare to other orthopedic surgeons in Decatur?

Among the 3 orthopedic surgeons in Decatur, Dr. Riehl ranks #2 by total Medicare procedure volume. Dr. Riehl is among the highest-volume surgeons in Decatur.

What are the quality ratings for hospitals where Dr. Riehl practices?

Decatur Morgan Hospital-Decatur Campus (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Cullman Regional Medical Center (2 out of 5 CMS stars, hip/knee complication rate similar to national average). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.

Other Orthopedic Surgeons in Decatur, Alabama

Dr. Riehl's 47 Medicare procedures are at the Decatur average of 47. The table below compares verified procedure volumes for orthopedic surgeons practicing in Decatur.

SurgeonProceduresSpecialties
Dr. Robert Tapscott 70 Knee, Shoulder
Dr. Richard Sharp 23 Hip, Knee

Patient Resources & Verification

Research reviews, verify credentials, and check official quality data through these trusted sources:

Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.

Cite This Data

APA: OrthoProcedures. (2026). Dr. John Riehl, MD -- Orthopedic Surgeon Profile. Retrieved from https://orthoprocedures.com/surgeons/al/dr-john-riehl-decatur.html

Link: https://orthoprocedures.com/surgeons/al/dr-john-riehl-decatur.html

Data source: CMS Medicare Part B Provider Utilization & Payment Data. Full methodology | Open Data API

Important: Rankings are based solely on Medicare procedure volume and do not reflect quality of care, patient outcomes, or procedures covered by private insurance. This data represents approximately one-third to 40% of all joint replacement procedures nationwide. Always consult with healthcare providers to make informed decisions about your care.