DR. RHIANON MICHELE GROOM M.D.
NPI 1871724302
Psychiatry & Neurology - Psychiatry in Middleton, WI
About Dr. Rhianon Michele Groom M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RHIANON MICHELE GROOM M.D. (NPI 1871724302) is an individual psychiatry provider in Middleton, Wisconsin, licensed in Wisconsin (72280-20) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Accepted Insurance
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. Rhianon Michele Groom M.d. 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 Reassignments
2Medicare enrollment records show Rhianon Groom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elm Grove, WI 53122
- Reassigned Medicare billing, Wisconsin enrollment
- 1,457 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 10 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53562 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
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 Rhianon Groom's NPI number?
The NPI number for Rhianon Groom is 1871724302. It was assigned to this individual provider in the NPPES registry on July 31, 2009.
Where is Rhianon Groom located?
Rhianon Groom practices at 8333 Greenway Blvd, Middleton, WI 53562. The listed phone number is (630) 974-6602.
What is Rhianon Groom's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Rhianon Groom enrolled in Medicare?
Yes. Rhianon Groom 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 organizations bill Medicare for Rhianon Groom's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rhianon Groom reassigns Medicare benefits to 2 organizations: Gundersen Lutheran Medical Center Inc (Elm Grove, WI) and Tms Clinical Services Of Wisconsin Sc (West Allis, WI). Each 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 Rhianon Groom's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rhianon Groom accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Dean Health Plan, HealthPartners and Quartz list Rhianon Groom as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Rhianon Groom was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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. Rhianon Michele Groom, M.D. · NPI 1871724302
Psychiatry physician in Middleton, Wisconsin. Individual provider, active in the CMS NPPES registry since July 31, 2009.
## Identity
- **NPI:** 1871724302 (Entity type: Individual)
- **Enumerated:** July 31, 2009
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 72280-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 8333 GREENWAY BLVD, Middleton, WI 53562-3684
- **Phone:** (630) 974-6602 · **Fax:** (630) 487-2411
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Gundersen Lutheran Medical Center Inc (NPI 1548992316, Elm Grove, WI); Tms Clinical Services Of Wisconsin Sc (NPI 1528734902, West Allis, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** October 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871724302) · Data from the CMS NPPES public registry.