Teresa Sion, DNP, FNP-BC
NPI 1861971558 · Family Nurse Practitioner · Buffalo, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Sion, DNP, FNP-BC is a Family Nurse Practitioner provider in Buffalo, NY (NPI 1861971558).
Provider details
- NPI number
- 1861971558
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 343093 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-08-13
- Last updated
- 2018-08-13
Frequently asked questions
- What is Teresa Sion's NPI number?
- Teresa Sion's National Provider Identifier (NPI) is 1861971558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Sion's specialty?
- Teresa Sion is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Teresa Sion located?
- Teresa Sion's practice location on file with NPPES is 100 High St, Buffalo, NY 14203-1126.
- What is Teresa Sion's phone number?
- The practice phone number listed in the NPPES registry for Teresa Sion is (716) 859-5600.
- Does Teresa Sion accept Medicare?
- Teresa Sion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Sion's NPI active?
- Yes — Teresa Sion's NPI (1861971558) is active in the NPPES registry as of the last update on 2018-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.