Teresa A. Sion

Nurse Practitioner

100 HIGH ST, Buffalo, NY 14203

Medicare Accepted

8+ Years Experience

Contact Teresa A. Sion

(716) 859-5600 Get Directions

100 HIGH ST, Buffalo, NY 14203

For Providers

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Specialty

Nurse Practitioner Specialists

Coverage

Medicare + 6 Networks

Telehealth

Not Available

About Teresa A. Sion

Background and practice information

Teresa A. Sion is a nurse practitioner with over 8 years of clinical experience serving patients in the Buffalo, NY area. She completed her medical training at Other and has been in practice since 2018. She currently practices at Kaleida Health.

Teresa A. Sion 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 her among the top-performing providers in her specialty. Teresa A. Sion is in-network with 6 insurance providers, including Aetna, Cigna, Highmark BS Northeastern NY, and 3 more. Patients are encouraged to verify coverage with her office before scheduling an appointment.

At a Glance

GenderFemale

Experience8+ years

MedicareAccepted

TelehealthNot available

Education

Medical SchoolOther

Graduated2018

Are you Teresa A. Sion?

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Practice Locations

3 locations

Kaleida Health

Primary

100 High St

Buffalo, NY 14203

(716) 859-5600

Kaleida Health

445 Tremont St

North Tonawanda, NY 14120

(716) 694-4500

View 1 more location

Kaleida Health

445 Tremont St

North Tonawanda, NY 14120

(716) 694-4500

Affiliations

Hospital and facility affiliations

KALEIDA HEALTH

Hospital · BUFFALO, NY

Kaleida Health

Group Practice · BUFFALO, NY

Treatment & Experience

Clinical practice and procedure experience for Teresa A. Sion

Services & Procedures

Teresa A. Sion's clinical practice encompasses injections & procedures.

Injections & Procedures

11 services

Teresa A. Sion performs therapeutic injections and minor procedures, with insertion of non-tunneled central venous tube for infusion being a key part of her practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 94% below the billed amount.

Source: CMS Medicare Provider Utilization and Payment Data, 2023.

Insurance Networks

Accepted insurance plans and networks

Teresa A. Sion accepts 26 plans from 6 insurers, including Cigna, Aetna, Highmark BS Northeastern NY.

Cigna

In-NetworkView all Cigna doctors in Buffalo, NY →

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

Exceptional

CMS Quality Score · Out of 100

Dr. Sion 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. Sion among the highest-performing nurse practitioners in Buffalo, NY and nationwide. When searching for a top-rated nurse practitioner, 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 $21 in payments to Teresa A. Sion in 2024, primarily from Solventum Corporation for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.

Top Paying Companies

Solventum Corporation$21

Food and Beverage: $21

Source: CMS Open Payments, 2024.

Patient Reviews

Reviews and ratings from patients

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This profile appears in 6 insurance networks

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About Nurse Practitioner

Specialty overview and common conditions

A Nurse Practitioner (NP) is an advanced practice registered nurse who provides comprehensive healthcare services including diagnosing illnesses, prescribing medications, ordering and interpreting diagnostic tests, and developing treatment plans. NPs practice in various specialties including primary...

Common conditions treated by nurse practitioner specialists:

Diabetes Management
Hypertension (High Blood Pressure)
Respiratory Infections
Anxiety and Depression

Learn more about nurse practitioner specialists

Frequently Asked Questions

Common questions about Teresa A. Sion

Does Sion accept Medicare?

Yes, Sion accepts Medicare assignment. Patients with Medicare coverage can see Sion and typically pay less out of pocket when using a provider who accepts Medicare assignment.

What insurance does Sion accept?

Sion is in-network with 6 insurance providers, including Aetna, Cigna, Highmark BS Northeastern NY, Medicare, UMR, and 1 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Sion's office before scheduling.

Does Sion offer telehealth or virtual appointments?

Sion does not currently list telehealth services. For virtual care options, contact the office directly or consider other nurse practitioner providers in Buffalo who offer telehealth.

What conditions does Sion treat?

As a nurse practitioner specialist, Sion commonly treats conditions including diabetes management, hypertension (high blood pressure), respiratory infections, anxiety and depression, women's health issues, and other related health concerns. Contact the office to discuss your specific healthcare needs.

What is Sion's quality rating?

Sion 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 Sion go to medical school?

Sion completed medical training at Other and has been practicing since 2018, bringing over 8 years of clinical experience.

Where is Sion's office located?

Sion 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 Sion?

To schedule an appointment with Sion, 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 · Last updated: May 2026