DR. WILLIAM ERIC OBERDORF D.O.
NPI 1437569431
Hospitalist in Camden, NJ
About Dr. William Eric Oberdorf D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM ERIC OBERDORF D.O. (NPI 1437569431) is an individual hospitalist provider in Camden, New Jersey, licensed in New Jersey (25MB10158800) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Cooper University Hospital, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2014).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William Eric Oberdorf D.o. 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.
Medicare Billing Reassignment
Medicare enrollment records show William Oberdorf reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Camden, NJ 08103
- Reassigned Medicare billing, New Jersey enrollment
- 535 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cooper University Hospital
Acute Care Hospitals · Camden, NJInspira Medical Center Vineland
Acute Care Hospitals · Vineland, NJInspira Medical Center Mullica Hill
Acute Care Hospitals · Mullica Hill, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 William Oberdorf's NPI number?
The NPI number for William Oberdorf is 1437569431. It was assigned to this individual provider in the NPPES registry on April 30, 2014.
Where is William Oberdorf located?
William Oberdorf practices at 1 Cooper Plz, Camden, NJ 08103. The listed phone number is (856) 342-2000.
What is William Oberdorf's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is William Oberdorf enrolled in Medicare?
Yes. William Oberdorf is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for William Oberdorf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Oberdorf reassigns Medicare benefits to Cooper Physician Offices, PA (Camden, NJ). 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 William Oberdorf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Oberdorf affiliated with any hospitals?
According to CMS data, William Oberdorf is affiliated with Cooper University Hospital, Inspira Medical Center Vineland and Inspira Medical Center Mullica Hill.
When was this NPI record last updated?
The NPPES record for William Oberdorf was last updated on November 22, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.
# Dr. William Eric Oberdorf, D.O. · NPI 1437569431
Hospitalist physician in Camden, New Jersey. Individual provider, active in the CMS NPPES registry since April 30, 2014.
## Identity
- **NPI:** 1437569431 (Entity type: Individual)
- **Enumerated:** April 30, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 25MB10158800 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 COOPER PLZ, Camden, NJ 08103-1461
- **Phone:** (856) 342-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Cooper Physician Offices, PA (NPI 1154369510, Camden, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Osteo Medicine Of New York Institute Of Technology, class of 2014
## Record status
- **NPPES last updated:** November 22, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1437569431) · Data from the CMS NPPES public registry.