Cay Denherder, M.D.
NPI 1386804961 · Internal Medicine Physician · Worcester, MA
Cay Denherder, M.D. is a Internal Medicine Physician provider in Worcester, MA (NPI 1386804961).
Provider details
- NPI number
- 1386804961
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 56671 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- Blackstone Valley Free Medical ClinicNhs, 427 Linwood AvenueWhitinsville, MA 01588Phone: (508) 278-0613
Registry dates
- Enumerated
- 2008-06-17
- Last updated
- 2019-04-02
Frequently asked questions
- What is Cay Denherder's NPI number?
- Cay Denherder's National Provider Identifier (NPI) is 1386804961, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cay Denherder's specialty?
- Cay Denherder is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cay Denherder located?
- Cay Denherder's practice location on file with NPPES is 605 Lincoln St, Worcester, MA 01605-1901.
- What is Cay Denherder's phone number?
- The practice phone number listed in the NPPES registry for Cay Denherder is (508) 856-0104.
- Is Cay Denherder's NPI active?
- Yes — Cay Denherder's NPI (1386804961) is active in the NPPES registry as of the last update on 2019-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.