IndividualActive
Joyce Duncan, MD
NPI 1770559296 · Family Medicine Physician · Northampton, MA
Joyce Duncan, MD is a Family Medicine Physician provider in Northampton, MA (NPI 1770559296).
Provider details
- NPI number
- 1770559296
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 55226 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
325b King Street
Northampton, MA 01060-2370
Phone: (413) 387-4100
Fax: (413) 387-4119
Street-level locationGet directions
Mailing address
280 Chestnut St
Springfield, MA 01199-1000
Registry dates
- Enumerated
- 2006-02-24
- Last updated
- 2013-05-06
Frequently asked questions
- What is Joyce Duncan's NPI number?
- Joyce Duncan's National Provider Identifier (NPI) is 1770559296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joyce Duncan's specialty?
- Joyce Duncan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joyce Duncan located?
- Joyce Duncan's practice location on file with NPPES is 325b King Street, Northampton, MA 01060-2370.
- What is Joyce Duncan's phone number?
- The practice phone number listed in the NPPES registry for Joyce Duncan is (413) 387-4100.
- Is Joyce Duncan's NPI active?
- Yes — Joyce Duncan's NPI (1770559296) is active in the NPPES registry as of the last update on 2013-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.