Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
MARY ELIZABETH FEISTNER
Active Sole ProprietorMARY ELIZABETH FEISTNER is a Addiction (Substance Use Disorder) Counselor healthcare provider located in UPLAND, California. NPI 1508499526 is currently active in the NPPES registry. Verify at CMS.
Addiction (Substance Use Disorder) Counselor · UPLAND, CA
Registration Details
- NPI Number
- 1508499526
- Provider Type
- Individual
- Gender
- Female
- NPI Issued
- Feb 18, 2020 (6.4773155887096 yrs)
- Last Updated
- Dec 10, 2025
- License
-
14645 (CA)
- Sole Proprietor
- Yes
Practice Information
- Address
-
934 N MOUNTAIN AVE STE A-DUPLAND, CA, 917863659Browse CA providers · Browse ZIP 91786
- Phone
- 9516836596
- Primary Specialty
-
Addiction (Substance Use Disorder) Counselor
101YA0400X
Other Addiction (Substance Use Disorder) Counselor Providers in UPLAND, CA
| Name | Credential | NPI |
|---|---|---|
| JANICE KAY DEGRANDE | CAS | 1245387687 |
| MISS SUSAN EVETTE OTERO | — | 1831222652 |
| MR. ROBERT FULLER | — | 1609998459 |
| MR. ROBERT ANDREW GALLEGOS | CADC II | 1669697322 |
| PATRICIA OWENS | — | 1952593089 |
| ANTONIO PEREZ III | CADCIII B0011040519 | 1811189483 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.