William Heffernan,m.d.
NPI 1699804427 · Family Medicine Physician · Highland, NY
William Heffernan,m.d. is a Family Medicine Physician organization in Highland, NY (NPI 1699804427).
Provider details
- NPI number
- 1699804427
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Heffernan, Owner(845) 691-9200
- License
- 162027 (NY)
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
19 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
- 2007-03-05
- Last updated
- 2008-02-11
Frequently asked questions
- What is William Heffernan,m.d.'s NPI number?
- William Heffernan,m.d.'s National Provider Identifier (NPI) is 1699804427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Heffernan,m.d.?
- William Heffernan,m.d. is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Heffernan,m.d. located?
- William Heffernan,m.d.'s practice location on file with NPPES is 240 S Riverside Rd, Highland, NY 12528-2523.
- What is William Heffernan,m.d.'s phone number?
- The practice phone number listed in the NPPES registry for William Heffernan,m.d. is (845) 691-9200.
- Who is the authorized official for William Heffernan,m.d.?
- The authorized official listed on William Heffernan,m.d.'s NPPES record is William Heffernan, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Heffernan,m.d.'s NPI active?
- Yes — William Heffernan,m.d.'s NPI (1699804427) is active in the NPPES registry as of the last update on 2008-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.