Claire Cassiday, PA
NPI 1649129321 · Physician Assistant · Grand Rapids, MI
Claire Cassiday, PA is a Physician Assistant provider in Grand Rapids, MI (NPI 1649129321).
Provider details
- NPI number
- 1649129321
- 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
Under 1 yr in 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
- 2026-01-26
- Last updated
- 2026-01-26
- Certified
- 2026-01-26
Frequently asked questions
- What is Claire Cassiday's NPI number?
- Claire Cassiday's National Provider Identifier (NPI) is 1649129321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Cassiday's specialty?
- Claire Cassiday is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Claire Cassiday located?
- Claire Cassiday's practice location on file with NPPES is 301 Michigan St Ne Ste 200, Grand Rapids, MI 49503-3314.
- What is Claire Cassiday's phone number?
- The practice phone number listed in the NPPES registry for Claire Cassiday is (616) 331-5700.
- Is Claire Cassiday's NPI active?
- Yes — Claire Cassiday's NPI (1649129321) is active in the NPPES registry as of the last update on 2026-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.