Teresa Ansinn, ANP
NPI 1891185765 · Adult Health Nurse Practitioner · South Haven, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Ansinn, ANP is a Adult Health Nurse Practitioner provider in South Haven, MI (NPI 1891185765).
Provider details
- NPI number
- 1891185765
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704253493 (MI)
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
11 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 456 | 145 |
| Levothyroxine Sodium | 281 | 81 |
| Amlodipine Besylate | 267 | 84 |
| Lisinopril | 257 | 82 |
| Losartan Potassium | 186 | 56 |
| Omeprazole | 134 | 41 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$77 across 4 records (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
- 2015-01-30
- Last updated
- 2026-04-21
- Certified
- 2026-04-21
Frequently asked questions
- What is Teresa Ansinn's NPI number?
- Teresa Ansinn's National Provider Identifier (NPI) is 1891185765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Ansinn's specialty?
- Teresa Ansinn is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Teresa Ansinn located?
- Teresa Ansinn's practice location on file with NPPES is 955 S Bailey Ave Ste 200, South Haven, MI 49090-6743.
- What is Teresa Ansinn's phone number?
- The practice phone number listed in the NPPES registry for Teresa Ansinn is (269) 639-2777.
- Does Teresa Ansinn accept Medicare?
- Teresa Ansinn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Ansinn's NPI active?
- Yes — Teresa Ansinn's NPI (1891185765) is active in the NPPES registry as of the last update on 2026-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.