William Ennis, MD
NPI 1356447254 · Anesthesiology Physician · Concord, NH
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Ennis, MD is a Anesthesiology Physician provider in Concord, NH (NPI 1356447254).
Provider details
- NPI number
- 1356447254
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9150 (NH)
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
3 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 (2)
- 60 Commercial St Ste 201Concord, NH 03301-5096Phone: (603) 789-9103Fax: (603) 227-7832
- 80 Highland StLaconia, NH 03246-3235Phone: (603) 789-9103Fax: (603) 227-7832
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2024-09-26
- Certified
- 2024-09-26
Frequently asked questions
- What is William Ennis's NPI number?
- William Ennis's National Provider Identifier (NPI) is 1356447254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ennis's specialty?
- William Ennis is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Ennis located?
- William Ennis's practice location on file with NPPES is 250 Pleasant St, Concord, NH 03301-2598.
- What is William Ennis's phone number?
- The practice phone number listed in the NPPES registry for William Ennis is (603) 789-9103.
- Does William Ennis accept Medicare?
- William Ennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Ennis's NPI active?
- Yes — William Ennis's NPI (1356447254) is active in the NPPES registry as of the last update on 2024-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.