Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1851312276 Individual Practitioner Male Practitioner

Dr. Ralph Emerson Duncan , MD

Urology • York, PA

Professional Overview & Biography Verified Profile Summary

Dr. Ralph Duncan, MD is a registered healthcare professional specializing in Urology in York, PA. Practice services are available at 25 MONUMENT RD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

25 Monument Rd
Suite 100

York, PA 174035060

Telephone 7177414785
Fax 7177414696
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in York, PA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 16.5 Yrs
State Avg: 28.1 Yrs
Regional Practice Density
11 Specialists

Practicing in York, PA (720 Statewide)

Telehealth Adoption Rate
27.3% 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

CMS Verified: 2025-10-06
Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License PA MD022079E

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
1012374 (PA)
Commercial Insurance / Payer ID Cigna
2237347 (PA)
Commercial Insurance / Payer ID Blue Cross/keystone
01530901 (PA)
Commercial Insurance / Payer ID United Healthcare
496625 (PA)
Commercial Insurance / Payer ID Three Rivers
89372 (PA)
Commercial Insurance / Payer ID Railroad Medicare
340009963 (PA)
Commercial Insurance / Payer ID Mamsi
26949 (PA)
Commercial Insurance / Payer ID Blue Shield
078367 (PA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
NPI 1003888496

Doctor of Optometry

Grace Santos , MS, LAT, ATC

Specialist/Technologist - Athletic Trainer

NPI 1033976030

Master of Science, Licensed Athletic Trainer, Certified Athletic Trainer

Megan Miliziano , ATC

Specialist/Technologist - Athletic Trainer

NPI 1043672777

Certified Athletic Trainer

Laura Schmitt

Physical Therapist

NPI 1053930669
Wendy Warner

Occupational Therapist - Physical Rehabilitation

NPI 1063040327
Merry Hildebrand

Physical Therapist

NPI 1073142261

Career & Practice History Timeline

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

7 Historical Events
📍
Updated Business Mailing Address October 06, 2025

Registered at 601 MEMORY LN, YORK, PA 174022231 (Tel: 7178511405)

NPI Profile Active July 09, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 09, 2007

Registered at 25 MONUMENT RD, SUITE 100, YORK, PA 174035060 (Tel: 7177414785)

📍
Updated Business Mailing Address July 09, 2007

Registered at 25 MONUMENT RD, SUITE 100, YORK, PA 174035060 (Tel: 7177414785)

👤
Provider Name / Credentials Updated July 09, 2007

Recorded as RALPH DUNCAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2007

Urology (License #MD022079E in PA)

🟢
Initial NPI Registration & Enumeration July 21, 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: 1851312276
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 21, 2006
Last Update: October 06, 2025
Sole Proprietor: Yes

Mailing Address

601 Memory Ln

York, PA 174022231

Phone: 7178511405

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.