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JAMES JOSEPH HARPER M.D.
NPI 1922132364
Emergency Medicine in Oconomowoc, WI

Active since March 16, 2007PECOS Enrolled
791 SUMMIT AVE, OCONOMOWOC, WI 53066(262) 569-0251 Get Directions Write a Review

NPPES record last updated: November 20, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James Joseph Harper M.d. NPPES

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

JAMES JOSEPH HARPER M.D. (NPI 1922132364) is an individual emergency medicine provider in Oconomowoc, Wisconsin, licensed in South Carolina (LL 29029) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922132364
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJAMES JOSEPH HARPERCredential: M.D.
Location Address791 SUMMIT AVEOconomowoc, WI 53066-3844
Mailing Address791 Summit AveOconomowoc, WI 53066-3844 · (262) 569-0251
Phone(262) 569-0251
Sole ProprietorNo
Enumeration DateMarch 16, 2007
Last NPPES UpdateNovember 20, 2025
NPPES CertifiedNovember 20, 2025
✔ NPI 1922132364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in SC · LL 29029
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
791 SUMMIT AVE, Oconomowoc, WI 53066
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James Joseph Harper 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.

Medicare Billing Reassignment

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

Sound Physicians Emergency Medicine Of South Carolina LLC
751 mi
Emergency Medicine
302 UNIVERSITY PKWY
Aiken, SC 29801
  • Reassigned Medicare billing, South Carolina enrollment
  • 187 clinicians in this Medicare group
NPI 1730636168 (803) 641-5000

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 53066 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
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 8

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

EVGENIYA KHEN NP
Nurse Practitioner (Acute Care)
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-9400
THOMAS RUFFALO PA
Physician Assistant
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-9119
DR. TERRENCE J GAYNOR M.D.
Anesthesiology
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-9400
DR. RICHARD MORRIS HANSEN MD
Internal Medicine (Hematology & Oncology)
791 SUMMIT AVE, PROHEALTH CARE REGIONAL CANCER CENTER
OCONOMOWOC, WI 53066
Waukesha County (262) 569-0554
LAKE COUNTRY PHARMACY
Pharmacist
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-0284
NORHAN MOHAMMED M.D.
Internal Medicine (Cardiovascular Disease)
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-9400
PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL, INC.
General Acute Care Hospital
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 928-2510
PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL, INC.
Pharmacy (Institutional Pharmacy)
791 SUMMIT AVE
OCONOMOWOC, WI 53066
Waukesha County (262) 569-0471

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 James Harper's NPI number?

The NPI number for James Harper is 1922132364. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Where is James Harper located?

James Harper practices at 791 Summit Ave, Oconomowoc, WI 53066. The listed phone number is (262) 569-0251.

What is James Harper's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is James Harper enrolled in Medicare?

Yes. James Harper is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Harper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Harper reassigns Medicare benefits to Sound Physicians Emergency Medicine Of South Carolina LLC (Aiken, SC). 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 James Harper'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 James Harper was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.