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DR. RALPH EMERSON DUNCAN III MD
NPI 1851312276
Urology in York, PA

Active since July 21, 2006PECOS Enrolled
25 MONUMENT RD, SUITE 100, YORK, PA 17403(717) 741-4785(717) 741-4696 Get Directions Write a Review

NPPES record last updated: October 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Ralph Emerson Duncan Iii Md NPPES

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

DR. RALPH EMERSON DUNCAN III MD (NPI 1851312276) is an individual urology provider in York, Pennsylvania, licensed in Pennsylvania (MD022079E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851312276
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameDR. RALPH EMERSON DUNCAN IIICredential: MD
Location Address25 MONUMENT RD, SUITE 100York, PA 17403-5060
Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405
Phone(717) 741-4785
Fax(717) 741-4696
Sole ProprietorYes
Enumeration DateJuly 21, 2006
Last NPPES UpdateOctober 6, 2025
NPPES CertifiedOctober 6, 2025
✔ NPI 1851312276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
License✔ Licensed in PA · MD022079E
Definition
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.
25 MONUMENT RD, York, PA 17403
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Other Identifiers 8

Other89372PA · Three Rivers
Other2237347PA · Cigna
Other01530901PA · Blue Cross/keystone
Other496625PA · United Healthcare
Other078367PA · Blue Shield
Other340009963PA · Railroad Medicare
Other26949PA · Mamsi
Medicaid1012374PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ralph Emerson Duncan Iii Md 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.

Medicare Billing Reassignment

Medicare enrollment records show Ralph Duncan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Wellspan Medical Group
Same address
Internal Medicine
25 MONUMENT RD, SUITE 140-145
York, PA 17403
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,080 clinicians in this Medicare group
NPI 1093883084 (717) 741-8003

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17403 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
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
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.

APPLE HILL PODIATRY ASSOCIATES, P.C.
Podiatrist
25 MONUMENT RD, STE 130
YORK, PA 17403
York County (717) 741-9055
DR. MATTHEW J LINK O.D.
Optometrist
25 MONUMENT RD, SUITE 297
YORK, PA 17403
York County (717) 741-6732
GRACE SANTOS MS, LAT, ATC
Specialist/Technologist (Athletic Trainer)
25 MONUMENT RD
YORK, PA 17403
York County (717) 812-4090
MS. MEGAN MILIZIANO ATC
Specialist/Technologist (Athletic Trainer)
25 MONUMENT RD
YORK, PA 17403
York County (717) 812-5870
LAURA SCHMITT
Physical Therapist
25 MONUMENT RD
YORK, PA 17403
York County (717) 741-8240
WENDY S WARNER
Occupational Therapist (Physical Rehabilitation)
25 MONUMENT RD
YORK, PA 17403
York County (717) 741-8240
MERRY HILDEBRAND
Physical Therapist
25 MONUMENT RD
YORK, PA 17403
York County (717) 741-8240
CRAIG RICHARD RUDER MD
Orthopaedic Surgery
25 MONUMENT RD, SUITE 290
YORK, PA 17403
York County (717) 812-4090

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 Ralph Duncan's NPI number?

The NPI number for Ralph Duncan is 1851312276. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Where is Ralph Duncan located?

Ralph Duncan practices at 25 Monument Rd Suite 100, York, PA 17403. The listed phone number is (717) 741-4785.

What is Ralph Duncan's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Ralph Duncan enrolled in Medicare?

Yes. Ralph Duncan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ralph Duncan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ralph Duncan reassigns Medicare benefits to Wellspan Medical Group (York, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ralph Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ralph Duncan was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.