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Dr. Donald J. Nenno

MD·Orthopedic Surgery

100 HIGH ST, Buffalo, NY 14203

Medicare Accepted
51+ Years Experience

Contact Dr. Nenno

(716) 859-5600Get Directions

100 HIGH ST, Buffalo, NY 14203

For Providers

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Specialty

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

GenderMale
Experience51+ years
MedicareAccepted
TelehealthNot available

Education

Medical SchoolOther
Graduated1975

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Practice Locations

4 locations

Kaleida Health

Primary

100 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

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

26Top 27%

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

1-10

Dr. Nenno also performs knee replacement surgeries (total knee arthroplasty).

Lower limb (leg) arthroscopy (minimally invasive joint repair)

1-10

Dr. Nenno also performs minimally invasive leg arthroscopy procedures for joint diagnosis and repair.

Upper limb (arm) arthroscopy (minimally invasive joint repair)

1-10

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 services

Dr. 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 services

Dr. 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 services

Dr. 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.

Diclofenac Sodium— for arthritis pain and inflammation
Naproxen— for pain and inflammation
Hydrocodone/Acetaminophen(Hydrocodone-Acetaminophen)— for moderate to severe pain
Gabapentin— for nerve pain and seizures

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.

Az Localflex Excl Ebh And Pathwell
Az Localflex Incl Ebh And Pathwell
Az Localflex Incl Ebh Excl Pathwell
Healthpartners Qualified Network
Localplus
Localplus Exclude Ebh With Pathwell
Localplus Sar
Localplus With Ebh Plus Pathwell
Mvp Mohawk Valley Physicians
National OapOAP
National PpoPPO
National Ppo Sar 1PPO
National Ppo Sar IiPPO
Oap Shared Admin RepricingOAP
Pathwell OapOAP
Pathwell PpoPPO
Priority Health Alliance

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

94

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.

78.8

Clinical Quality

78.8/100

Measures the quality of care provided based on clinical outcomes and patient safety

68.9

Cost Efficiency

68.9/100

Evaluates how efficiently healthcare resources are used while maintaining quality

100.0

Health IT Adoption

100.0/100

Measures adoption of electronic health records and patient access to health information

40.0

Care Improvement

40.0/40

Reflects 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

Stryker Corporation$114
Solventum Corporation$27
Food and Beverage: $140

Source: CMS Open Payments, 2024.

Patient Reviews

Reviews and ratings from patients

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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
Learn more about orthopedic surgery specialists

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 ·

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Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards

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