Cassie Wassink, MD
NPI 1508503954 · Allergy & Immunology Physician · Iowa City, IA
Enrolled with Medicare as Order and Referring Only - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassie Wassink, MD is a Allergy & Immunology Physician provider in Iowa City, IA (NPI 1508503954).
Provider details
- NPI number
- 1508503954
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-55219 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-05-17
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Cassie Wassink's NPI number?
- Cassie Wassink's National Provider Identifier (NPI) is 1508503954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassie Wassink's specialty?
- Cassie Wassink is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Cassie Wassink located?
- Cassie Wassink's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Cassie Wassink's phone number?
- The practice phone number listed in the NPPES registry for Cassie Wassink is (319) 356-1311.
- Does Cassie Wassink accept Medicare?
- Cassie Wassink is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassie Wassink's NPI active?
- Yes — Cassie Wassink's NPI (1508503954) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.