ERIK A RANHEIM MD PHD
NPI 1275595456
Pathology - Hematology in Madison, WI
About Erik A Ranheim Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIK A RANHEIM MD PHD (NPI 1275595456) is an individual hematology provider in Madison, Wisconsin, licensed in Wisconsin (45293) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Unitypoint Health - Meriter, and is a graduate of University Of Minnesota Medical School (1996).
NPPES Registry Identity
Specialties & Licenses 4
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
Erik A Ranheim Md Phd 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 Erik Ranheim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 2,832 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Unitypoint Health - Meriter
Acute Care Hospitals · Madison, WIUniversity Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53792 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.
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.
MADISON, WI 53792
MADISON, WI 53792
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 Erik Ranheim's NPI number?
The NPI number for Erik Ranheim is 1275595456. It was assigned to this individual provider in the NPPES registry on April 4, 2006.
Where is Erik Ranheim located?
Erik Ranheim practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 263-8437.
What is Erik Ranheim's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Hematology, with taxonomy code 207ZH0000X.
Is Erik Ranheim enrolled in Medicare?
Yes. Erik Ranheim 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 Erik Ranheim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erik Ranheim reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). 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 Erik Ranheim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Erik Ranheim affiliated with any hospitals?
According to CMS data, Erik Ranheim is affiliated with Unitypoint Health - Meriter and University Of Wi Hospitals & Clinics Authority.
When was this NPI record last updated?
The NPPES record for Erik Ranheim was last updated on January 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Erik A Ranheim, MD PHD · NPI 1275595456
Hematology physician in Madison, Wisconsin. Individual provider, active in the CMS NPPES registry since April 4, 2006.
## Identity
- **NPI:** 1275595456 (Entity type: Individual)
- **Enumerated:** April 4, 2006
- **Primary specialty:** Pathology - Hematology · taxonomy 207ZH0000X
- **State license:** 45293 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 HIGHLAND AVE, Madison, WI 53792-0001
- **Phone:** (608) 263-8437
## 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:** University Of Wisconsin Medical Foundation, Inc (NPI 1598784555, Middleton, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 1996
## Record status
- **NPPES last updated:** January 20, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1275595456) · Data from the CMS NPPES public registry.