William Caplan, M.D.
NPI 1679553408 · Cardiovascular Disease Physician · Dartmouth, MA
William Caplan, M.D. is a Cardiovascular Disease Physician provider in Dartmouth, MA (NPI 1679553408).
Provider details
- NPI number
- 1679553408
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 42506 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2018-02-01
Frequently asked questions
- What is William Caplan's NPI number?
- William Caplan's National Provider Identifier (NPI) is 1679553408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Caplan's specialty?
- William Caplan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Caplan located?
- William Caplan's practice location on file with NPPES is 535 Faunce Corner Rd, Dartmouth, MA 02747-1242.
- What is William Caplan's phone number?
- The practice phone number listed in the NPPES registry for William Caplan is (508) 996-3991.
- Is William Caplan's NPI active?
- Yes — William Caplan's NPI (1679553408) is active in the NPPES registry as of the last update on 2018-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.