Mrs. Gretchen May Bartelli, MSW
Mrs. Gretchen May Bartelli is a Social Worker provider (Social Worker) practicing in Hancock, MI, registered in the NPPES registry with NPI 1851047021 since 2022. Practices at Copper Island Behavioral Health (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1851047021 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mrs. Gretchen May Bartelli |
| Credential | MSW |
| Sex | Female |
| Practice address | Hancock, MI, 49930 |
| Phone | 2314373018 |
| Enumeration date | 2022-02-26 |
| Last updated in NPPES | 2022-02-26 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 104100000X | Social Worker | Primary | 6802077923 | MI |
Copy-ready billing details
Provider: Gretchen Bartelli, MSW NPI: 1851047021 Taxonomy: 104100000X (Social Worker) Address: Hancock, MI, 49930
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629221916 | Copper Island Behavioral Health | Organization | Clinical Social Worker | Hancock, MI |
Verify this record
Cross-check NPI 1851047021 against the authoritative CMS record: view Mrs. Gretchen May Bartelli on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-02-26.