Natalie Siwula, PA
NPI 1487470456 · Physician Assistant · Allendale, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalie Siwula, PA is a Physician Assistant provider in Allendale, MI (NPI 1487470456).
Provider details
- NPI number
- 1487470456
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
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
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-11-25
- Last updated
- 2024-11-25
- Certified
- 2024-11-25
Frequently asked questions
- What is Natalie Siwula's NPI number?
- Natalie Siwula's National Provider Identifier (NPI) is 1487470456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalie Siwula's specialty?
- Natalie Siwula is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Natalie Siwula located?
- Natalie Siwula's practice location on file with NPPES is 1 Campus Dr, Allendale, MI 49401-9403.
- What is Natalie Siwula's phone number?
- The practice phone number listed in the NPPES registry for Natalie Siwula is (616) 331-5700.
- Does Natalie Siwula accept Medicare?
- Natalie Siwula is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalie Siwula's NPI active?
- Yes — Natalie Siwula's NPI (1487470456) is active in the NPPES registry as of the last update on 2024-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.