KATHERINE DUFFEY
NPI 1851888929
Internal Medicine - Gastroenterology in Philadelphia, PA

Q: What is Katherine Duffey's NPI number?

The NPI number for Katherine Duffey is 1851888929. It was assigned to this individual provider in the NPPES registry on April 15, 2018.

Q: What is Katherine Duffey's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Duffey was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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 April 15, 2018PECOS EnrolledAccepts Medicare Assignment

833 CHESTNUT ST STE 220, PHILADELPHIA, PA 19107(215) 955-8465 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 18, 2026, Aug 12, 2025, Jun 17, 2021 and 1 more (4 updates tracked since 2018).

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About Katherine Duffey NPPES

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

KATHERINE DUFFEY (NPI 1851888929) is an individual gastroenterology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD473869) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Jefferson Stratford Hospital, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2018).

NPPES Registry Identity

NPI1851888929

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameKATHERINE DUFFEY

Location Address833 CHESTNUT ST STE 220Philadelphia, PA 19107-4405

Mailing Address833 Chestnut St Ste 220Philadelphia, PA 19107-4405

Phone(215) 955-8465

Sole ProprietorNo

Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2018

Enumeration DateApril 15, 2018

Last NPPES UpdateMarch 18, 20264 updates tracked since enumeration

NPPES CertifiedMarch 18, 2026

✔ NPI 1851888929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in PA · MD473869

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD473869 (PA)

833 CHESTNUT ST STE 220, Philadelphia, PA 19107

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine Duffey is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688929748

PECOS Enrollment IDI20210623000354, I20251013002503

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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Jefferson Stratford Hospital

Acute Care Hospitals · Stratford, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310086

Location18 East Laurel RoadStratford, NJ 08084 · Camden County

Emergency services Birthing friendly

Thomas Jefferson University Hospital

Acute Care Hospitals · Philadelphia, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390174

Location111 South 11th StreetPhiladelphia, PA 19107 · Philadelphia County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19107 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

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RISA GOLDBERG

Student in an Organized Health Care Education/Training Program