Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ERIN DUFFY M.D.
NPI 1487647061
Family Medicine in Willow Grove, PA

Q: What is Erin Duffy's NPI number?

The NPI number for Erin Duffy is 1487647061. It was assigned to this individual provider in the NPPES registry on August 29, 2005.

Q: What is Erin Duffy's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Erin Duffy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 29, 2005PECOS Enrolled

NAVAL HEALTH CLINIC - WILLOW GROVE, NAS/JRB WILLOW GROVE, WILLOW GROVE, PA 19090(215) 443-6360 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Erin Duffy M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ERIN DUFFY M.D. (NPI 1487647061) is an individual family medicine provider in Willow Grove, Pennsylvania, licensed in Virginia (0101-236239) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487647061

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. ERIN DUFFYCredential: M.D.

Location AddressNAVAL HEALTH CLINIC - WILLOW GROVE, NAS/JRB WILLOW GROVEWillow Grove, PA 19090

Mailing AddressNaval Health Clinic - Willow Grove, Nas/jrb Willow GroveWillow Grove, PA 19090 · (215) 443-6360

Phone(215) 443-6360

Sole ProprietorNo

Enumeration DateAugust 29, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1487647061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in VA · 0101-236239

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

NAVAL HEALTH CLINIC - WILLOW GROVE, Willow Grove, PA 19090

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Erin Duffy M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19090 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$92.69 typical visit price

range $59.88 – $180.99

Typical copayment $23.17 (range $14.97 – $45.24)

Most-billed visit code 99203

Established Patient

$105.21 typical visit price

range $19.30 – $147.29

Typical copayment $26.30 (range $4.82 – $36.82)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Erin Duffy's NPI number?

The NPI number for Erin Duffy is 1487647061. It was assigned to this individual provider in the NPPES registry on August 29, 2005.

Where is Erin Duffy located?

Erin Duffy practices at Naval Health Clinic - Willow Grove Nas/Jrb Willow Grove, Willow Grove, PA 19090. The listed phone number is (215) 443-6360.

What is Erin Duffy's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Erin Duffy enrolled in Medicare?

Yes. Erin Duffy is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Erin Duffy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.