IndividualActive
John Ewan, M.D.
NPI 1386787851 · Anesthesiology Physician · Dudley Hill, MA
John Ewan, M.D. is a Anesthesiology Physician provider in Dudley Hill, MA (NPI 1386787851).
Provider details
- NPI number
- 1386787851
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57269 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
340 Thompson Rd
Dudley Hill, MA 01570-1509
Phone: (508) 943-2600
Street-level locationGet directions
Mailing address
660 Marshall St
Holliston, MA 01746-1439
Registry dates
- Enumerated
- 2007-02-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Ewan's NPI number?
- John Ewan's National Provider Identifier (NPI) is 1386787851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Ewan's specialty?
- John Ewan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Ewan located?
- John Ewan's practice location on file with NPPES is 340 Thompson Rd, Dudley Hill, MA 01570-1509.
- What is John Ewan's phone number?
- The practice phone number listed in the NPPES registry for John Ewan is (508) 943-2600.
- Is John Ewan's NPI active?
- Yes — John Ewan's NPI (1386787851) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.