Madelyn Heffner, FNP
Madelyn Heffner, FNP is an Integrative Medicine Physician in Meridian, ID, registered under NPI 1518801828.
Getting there
The practice address on file is 2939 W EXCURSION LN, Meridian, ID 83642. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 9871588 | ID | Integrative Medicine Physician primary |
This provider holds licence 9871588 issued in ID. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Integrative Medicine covers
A physician who specializes in the treatment of the whole person through prevention and treatment based on medical evidence. Integrative medicine considers all factors that influence health, wellness, and disease - including mind, body, and spirit. Conventional and alternative methods are used to facilitate the body's innate healing response. Appropriate consideration is given to use of less-invasive and less-harmful interventions, when possible. It also incorporates all appropriate therapeutic approaches, health care modalities, and disciplines to achieve optimal health and healing. NUCC Health Care Provider Taxonomy, code 202D00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1518801828 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 16, 2026 |
| Last updated | Apr 16, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | FNP |
| Practice address |
2939 W EXCURSION LN Meridian, ID 83642 (208) 385-7711 |
| Mailing address |
6951 W HUMMEL DR Boise, ID 83709 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 5 | 1 | 8 | 8 | 0 | 1 | 8 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 2 | 8 | 7 | 0 | 2 | 8 | 4 |
Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.