Ruth Ann Crystal, MD, A Professional Corporation
NPI 1881640423ActiveOrganization· Obstetrics & Gynecology· Palo Alto, CA
Obstetrics & Gynecology in Palo Alto, California, registered in NPPES in May 2006. The authorized official on file is Ruth Ann Crystal, MD, President.
Overview
| NPI | 1881640423 |
|---|---|
| Status | Active |
| Entity type | Organization |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Dec 3, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
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