John Dufendach, M.D.
NPI 1689618399 · Emergency Medicine Physician · Gettysburg, PA
John Dufendach, M.D. is a Emergency Medicine Physician provider in Gettysburg, PA (NPI 1689618399).
Provider details
- NPI number
- 1689618399
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD025315E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-06-15
- Last updated
- 2007-10-30
Frequently asked questions
- What is John Dufendach's NPI number?
- John Dufendach's National Provider Identifier (NPI) is 1689618399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dufendach's specialty?
- John Dufendach is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Dufendach located?
- John Dufendach's practice location on file with NPPES is 147 Gettys St, Gettysburg, PA 17325-2534.
- What is John Dufendach's phone number?
- The practice phone number listed in the NPPES registry for John Dufendach is (717) 337-4216.
- Is John Dufendach's NPI active?
- Yes — John Dufendach's NPI (1689618399) is active in the NPPES registry as of the last update on 2007-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.