Erin Duffy, M.D.
NPI 1487647061 · Family Medicine Physician · Willow Grove, PA
Enrolled with Medicare as Order and Referring Only - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Duffy, M.D. is a Family Medicine Physician provider in Willow Grove, PA (NPI 1487647061).
Provider details
- NPI number
- 1487647061
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- 0101-236239 (VA)
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
- 2005-08-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Erin Duffy's NPI number?
- Erin Duffy's National Provider Identifier (NPI) is 1487647061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Duffy's specialty?
- Erin Duffy is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erin Duffy located?
- Erin Duffy's practice location on file with NPPES is Naval Health Clinic - Willow Grove, Willow Grove, PA 19090.
- What is Erin Duffy's phone number?
- The practice phone number listed in the NPPES registry for Erin Duffy is (215) 443-6360.
- Does Erin Duffy accept Medicare?
- Erin Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Duffy's NPI active?
- Yes — Erin Duffy's NPI (1487647061) 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.