Cathy Sizer, NP
Cathy Sizer, NP is a pediatric nurse practitioner practicing in Westford, MA. The NPI was issued on October 4, 2005, and the record was last updated in NPPES on July 13, 2026.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Pediatric Nurse Practitioner Primary | 363LP0200X | 153270 (MA) |
Practice location
Local context
Active NPPES records list 889 providers with pediatric nurse practitioner as the primary taxonomy within 25 miles of this practice location's ZIP code, 44 of them within 10 miles.
The same primary taxonomy is listed by 1,321 in Massachusetts and 23,953 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- Cathy Sizer
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
Building software? Fetch this NPI programmatically with the NPILayer Provider API.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://api.npilayer.com/v1/providers/1467449512"