Marilyn Osias, NP
NPI 1437755477 · Nurse Practitioner · Stockton, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Osias, NP is a Nurse Practitioner provider in Stockton, CA (NPI 1437755477).
Provider details
- NPI number
- 1437755477
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95016046 (CA)
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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 77 | 42 |
| Hydrocortisone | 44 | 22 |
| Tacrolimus | 40 | 22 |
| Fluorouracil | 34 | 33 |
| Ketoconazole | 30 | 12 |
| Calcipotriene | 21 | 12 |
| Triamcinolone Acetonide | 16 | 13 |
| Fluocinonide | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-12-06
- Last updated
- 2020-12-06
- Certified
- 2020-12-06
Frequently asked questions
- What is Marilyn Osias's NPI number?
- Marilyn Osias's National Provider Identifier (NPI) is 1437755477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Osias's specialty?
- Marilyn Osias is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilyn Osias located?
- Marilyn Osias's practice location on file with NPPES is 5030 Pier Dr, Stockton, CA 95206-6159.
- What is Marilyn Osias's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Osias is (209) 598-3523.
- Does Marilyn Osias accept Medicare?
- Marilyn Osias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Osias's NPI active?
- Yes — Marilyn Osias's NPI (1437755477) is active in the NPPES registry as of the last update on 2020-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.