Kathryn Hay, MD
NPI 1669173605 · Urology Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Hay, MD is a Urology Physician provider in Boston, MA (NPI 1669173605).
Provider details
- NPI number
- 1669173605
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs 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
- 2023-03-16
- Last updated
- 2024-05-06
- Certified
- 2024-02-09
Frequently asked questions
- What is Kathryn Hay's NPI number?
- Kathryn Hay's National Provider Identifier (NPI) is 1669173605, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Hay's specialty?
- Kathryn Hay is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Kathryn Hay located?
- Kathryn Hay's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Kathryn Hay's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Hay is (857) 238-3838.
- Does Kathryn Hay accept Medicare?
- Kathryn Hay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Hay's NPI active?
- Yes — Kathryn Hay's NPI (1669173605) is active in the NPPES registry as of the last update on 2024-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.