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Active NPI 1356392211 Individual Practitioner Male Practitioner

Dr. William J Dennis , MD

Pediatrics • Phila, PA

Professional Overview & Biography Verified Profile Summary

Dr. William Dennis, MD is a registered healthcare professional specializing in Pediatrics in Phila, PA. Practice services are available at 3823 J ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

3823 J St

Phila, PA 191245405

Telephone 2152880157
Fax 2152884764
Associated Practice Facility / Clinic
🏢 Wm. J. Dennis Md Facility NPI 1104950831

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Phila, PA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 22.2 Yrs
Regional Practice Density
16 Specialists

Practicing in Phila, PA (3505 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License PA MD011421E

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
00652930 (PA)
Commercial Insurance / Payer ID Bcbs
16766
Commercial Insurance / Payer ID Cigna
6130173A
Commercial Insurance / Payer ID Keystone Mercy
1025945
Commercial Insurance / Payer ID Keystone Health Plan East
0055536001
Commercial Insurance / Payer ID Aetna
118185

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
✅
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 3823 J ST, PHILA, PA 191245405 (Tel: 2152880157)

📍
Updated Business Mailing Address July 08, 2007

Registered at 3823 J ST, PHILA, PA 191245405 (Tel: 2152880157)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as WILLIAM DENNIS, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Pediatrics (License #MD011421E in PA)

🟢
Initial NPI Registration & Enumeration May 15, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1356392211
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 15, 2006
Last Update: July 13, 2026
Sole Proprietor: No
Update or Correct Profile

Mailing Address

3823 J St

Phila, PA 191245405

Phone: 2152880157

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.