For Providers
Manage This ProfileSpecialty
Orthopedic Surgeons
Coverage
Medicare + 8 Networks
Telehealth
Not Available
About Dr. Donald J. Nenno
Background and practice information
Dr. Donald J. Nenno is an orthopedic surgeon with over 51 years of clinical experience serving patients in the Buffalo, NY area. He completed his medical training at Other and has been in practice since 1975. He currently practices at Kaleida Health.
Dr. Donald J. Nenno's clinical practice focuses on treating patients with arthritis pain and inflammation, pain and inflammation, moderate to severe pain, and related conditions, as well as performing hip replacement surgeries, knee replacement surgeries, minimally invasive leg arthroscopy procedures for joint diagnosis and repair.
Dr. Donald J. Nenno has earned an outstanding quality rating from the Centers for Medicare & Medicaid Services, scoring 94.3 out of 100 on the MIPS quality assessment — placing him among the top-performing providers in his specialty. Dr. Donald J. Nenno is in-network with 8 insurance providers, including Aetna, Cigna, Highmark BS Northeastern NY, and 5 more. Patients are encouraged to verify coverage with his office before scheduling an appointment.
At a Glance
Education
Are you Dr. Nenno?
Update your photo, bio, contact info, and accepting-new-patients status. Earn the “Verified” badge.
Claim this profilePractice Locations
4 locations
Kaleida Health
Primary100 High St
Buffalo, NY 14203
(716) 859-5600
415 Tremont St
North Tonawanda, NY 14120
(716) 833-4201
View 2 more locations
6932 Williams Rd
Niagara Falls, NY 14304
(716) 883-4204
Kaleida Health
900 Hertel Ave
Buffalo, NY 14216
(716) 871-1571
Affiliations
Hospital and facility affiliations
Treatment & Experience
Clinical practice and procedure experience for Dr. Donald J. Nenno
Dr. Donald Nenno is an experienced orthopedic surgeon in Buffalo, NY with a demonstrated track record in hip replacement surgeries. Based on verified procedure data reported to the Centers for Medicare & Medicaid Services (CMS), Dr. Nenno has significant surgical experience across multiple procedures.
Hip replacement
Dr. Nenno has performed 26 hip replacement surgeries (total hip arthroplasty), placing among the top 27% of surgeons nationwide for this procedure. This above average volume of experience is a meaningful indicator when choosing a hip replacement surgeon in Buffalo, NY, as medical research has consistently linked higher procedure volumes with improved patient outcomes and lower complication rates.
Knee replacement
Dr. Nenno also performs knee replacement surgeries (total knee arthroplasty).
Lower limb (leg) arthroscopy (minimally invasive joint repair)
Dr. Nenno also performs minimally invasive leg arthroscopy procedures for joint diagnosis and repair.
Upper limb (arm) arthroscopy (minimally invasive joint repair)
Dr. Nenno also performs minimally invasive arm and shoulder arthroscopy procedures.
Services & Procedures
Dr. Donald J. Nenno's clinical practice encompasses office visits, hospital care, other services.
Office Visits
129 servicesDr. Donald J. Nenno provides patient consultations ranging from routine follow-ups to comprehensive evaluations, including follow-up visit and new patient visit. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 70% below the billed amount.
Hospital Care
73 servicesDr. Donald J. Nenno manages inpatient hospital care including admissions, daily rounds, critical care, and discharge coordination, with hospital admission being a key part of his practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 71% below the billed amount.
Other Services
12 servicesDr. Donald J. Nenno provides additional clinical services, with treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement being a key part of his practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 69% below the billed amount.
Treatment Approach
Dr. Donald J. Nenno's treatment approach includes prescribing Diclofenac Sodium, Naproxen, Hydrocodone/acetaminophen (Hydrocodone-acetaminophen) for his patients. These medications are commonly used for treating arthritis pain and inflammation, pain and inflammation, moderate to severe pain. This prescribing pattern is consistent with a focused practice in orthopedic surgery.
Source: CMS Medicare Provider Utilization and Payment Data, 2023.
Insurance Networks
Accepted insurance plans and networks
Dr. Donald J. Nenno accepts 46 plans from 8 insurers, including Cigna, UnitedHealthcare, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Safety
CMS quality performance and patient safety measures
Exceptional
CMS Quality Score · Out of 100
Dr. Nenno received an overall quality score of 94.3 out of 100 from the Centers for Medicare & Medicaid Services (CMS), reflecting exceptional performance across clinical quality, patient safety, and care coordination. This score places Dr. Nenno among the highest-performing orthopedic surgeons in Buffalo, NY and nationwide. When searching for a top-rated orthopedic surgeon, a CMS quality score at this level indicates a strong commitment to evidence-based, high-quality patient care.
Clinical Quality
78.8/100Measures the quality of care provided based on clinical outcomes and patient safety
Cost Efficiency
68.9/100Evaluates how efficiently healthcare resources are used while maintaining quality
Health IT Adoption
100.0/100Measures adoption of electronic health records and patient access to health information
Care Improvement
40.0/40Reflects participation in activities that improve clinical practice and patient engagement
Source: CMS Merit-based Incentive Payment System
Financial Transparency
Industry payment disclosures
Pharmaceutical and medical device companies disclosed $140 in payments to Dr. Donald J. Nenno in 2024, primarily from Stryker Corporation for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.
Top Paying Companies
Source: CMS Open Payments, 2024.
Patient Reviews
Reviews and ratings from patients
Loading reviews...
Is This Your Practice?
This profile appears in 8 insurance networks
- Update your photo, bio, and contact info
- Mark whether you’re accepting new patients
- Earn the “Verified” badge
Starter $29 one-time. Professional from $59/mo unlocks review responses, office hours, photo gallery, and more.
About Orthopedic Surgery
Specialty overview and common conditions
An orthopedic surgeon (also spelled orthopaedic surgeon) is a medical doctor (M.D. or D.O.) who specializes in the diagnosis, treatment, prevention, and rehabilitation of disorders, injuries, and diseases of the musculoskeletal system—including bones, joints, ligaments, tendons, muscles, and nerves....
Common conditions treated by orthopedic surgery specialists:
- Osteoarthritis and Joint Pain
- ACL Tears and Ligament Injuries
- Fractures (Broken Bones)
- Rotator Cuff Tears
Frequently Asked Questions
Common questions about Donald J. Nenno
Does Dr. Nenno accept Medicare?
Yes, Dr. Nenno accepts Medicare assignment. Patients with Medicare coverage can see Dr. Nenno and typically pay less out of pocket when using a provider who accepts Medicare assignment.
What insurance does Dr. Nenno accept?
Dr. Nenno is in-network with 8 insurance providers, including Aetna, Cigna, Highmark BS Northeastern NY, Medicare, Molina Healthcare, and 3 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Dr. Nenno's office before scheduling.
Does Dr. Nenno offer telehealth or virtual appointments?
Dr. Nenno does not currently list telehealth services. For virtual care options, contact the office directly or consider other orthopedic surgery providers in Buffalo who offer telehealth.
What conditions does Dr. Nenno treat?
As a orthopedic surgery specialist, Dr. Nenno commonly treats conditions including osteoarthritis and joint pain, acl tears and ligament injuries, fractures (broken bones), rotator cuff tears, herniated disc and spinal stenosis, and other related health concerns. Contact the office to discuss your specific healthcare needs.
What medications does Dr. Nenno commonly prescribe?
Based on Medicare prescribing data, Dr. Nenno commonly prescribes medications including Diclofenac Sodium, Naproxen, Hydrocodone/Acetaminophen. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Dr. Nenno during their consultation.
What is Dr. Nenno's quality rating?
Dr. Nenno has received an outstanding quality score of 94.3 out of 100 from the Centers for Medicare & Medicaid Services (CMS) through the Merit-based Incentive Payment System (MIPS). This score reflects performance across quality measures, promoting interoperability, improvement activities, and cost efficiency.
Where did Dr. Nenno go to medical school?
Dr. Nenno completed medical training at Other and has been practicing since 1975, bringing over 51 years of clinical experience.
Where is Dr. Nenno's office located?
Dr. Nenno practices at 100 HIGH ST, Buffalo, NY 14203 at KALEIDA HEALTH. You can reach the office by calling (716) 859-5600.
How do I make an appointment with Dr. Nenno?
To schedule an appointment with Dr. Nenno, call the office at (716) 859-5600. New patients should have their insurance information and medical records ready when calling.
Data source: CMS National Provider Registry ·
Other Orthopedic Surgeons Nearby
Explore more providers in Buffalo, NY
Dr. Andrew Tetro, MD
Orthopedic Surgery · < 1 mi away
700 Michigan Ave, Buffalo, NY
(716) 854-5700
Dr. Matthew Dipaola, MD
Orthopedic Surgery · < 1 mi away
100 High St, Buffalo, NY
(716) 859-5600
Dr. Evgeny Dyskin
Orthopedic Surgery · < 1 mi away
100 High St, Buffalo, NY
(716) 859-5600
Dr. Zair Fishkin, MD
Orthopedic Surgery · < 1 mi away
700 Michigan Ave, Buffalo, NY
(716) 854-5700
Dr. Andrew Stegemann, DO
Orthopedic Surgery · < 1 mi away
100 High St, Buffalo, NY
(716) 859-5600
Dr. Sridhar Rachala, MD
Orthopedic Surgery · < 1 mi away
100 High St, Buffalo, NY
(716) 859-5600
Find Orthopedic Surgeons in Nearby Cities
Browse orthopedic surgeons providers in surrounding areas
Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards