Cassie Sewald
NPI 1851104129 · Advanced Practice Midwife · Mountain View, CA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassie Sewald is a Advanced Practice Midwife provider in Mountain View, CA (NPI 1851104129).
Provider details
- NPI number
- 1851104129
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95219861 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
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
1 yr 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-01-30
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Cassie Sewald's NPI number?
- Cassie Sewald's National Provider Identifier (NPI) is 1851104129, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassie Sewald's specialty?
- Cassie Sewald is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassie Sewald located?
- Cassie Sewald's practice location on file with NPPES is 2495 Hospital Dr Ste 525, Mountain View, CA 94040-4186.
- What is Cassie Sewald's phone number?
- The practice phone number listed in the NPPES registry for Cassie Sewald is (650) 962-5829.
- Does Cassie Sewald accept Medicare?
- Cassie Sewald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassie Sewald's NPI active?
- Yes — Cassie Sewald's NPI (1851104129) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.