Katherine May
NPI 1891599635 · Physician Assistant · Saint Charles, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine May is a Physician Assistant provider in Saint Charles, MO (NPI 1891599635).
Provider details
- NPI number
- 1891599635
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2025011392 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
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
- 2025-04-02
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Katherine May's NPI number?
- Katherine May's National Provider Identifier (NPI) is 1891599635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine May's specialty?
- Katherine May is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine May located?
- Katherine May's practice location on file with NPPES is 1475 Kisker Rd Ste 200, Saint Charles, MO 63304-8788.
- What is Katherine May's phone number?
- The practice phone number listed in the NPPES registry for Katherine May is (636) 498-5810.
- Does Katherine May accept Medicare?
- Katherine May is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine May's NPI active?
- Yes — Katherine May's NPI (1891599635) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.