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MR. RYAN WHITEHOUSE AA
NPI 1083367593
Anesthesiologist Assistant in Milwaukee, WI

Active since February 03, 2022
9200 W WISCONSIN AVE, MILWAUKEE, WI 53226(414) 805-6100(414) 805-6147 Get Directions Write a Review

NPPES record last updated: September 28, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 28, 2022, Feb 3, 2022 (2 updates tracked since 2022).

About Mr. Ryan Whitehouse Aa NPPES

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

MR. RYAN WHITEHOUSE AA (NPI 1083367593) is an individual anesthesiologist assistant in Milwaukee, Wisconsin, licensed in Wisconsin (507) and active in the NPI registry since February 2022. He is affiliated with Wellstar Kennestone Regional Medical Center and is a graduate of Other (2022).

NPPES Registry Identity

NPI1083367593
Entity TypeIndividualMale
Primary Taxonomy367H00000X
Provider Legal NameMR. RYAN WHITEHOUSECredential: AA
Location Address9200 W WISCONSIN AVEMilwaukee, WI 53226-3522
Mailing Address9200 W Wisconsin AveMilwaukee, WI 53226-3522 · (414) 805-6100 · Fax (414) 805-6147
Phone(414) 805-6100
Fax(414) 805-6147
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateFebruary 3, 2022
Last NPPES UpdateSeptember 28, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2022
✔ NPI 1083367593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
License✔ Licensed in WI · 507
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.
9200 W WISCONSIN AVE, Milwaukee, WI 53226
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Other Identifiers 1

Medicaid1083367593WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Ryan Whitehouse Aa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375921976
PECOS Enrollment IDI20240701003251

Medicare Billing Reassignments

2

Medicare enrollment records show Ryan Whitehouse reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wellstar Medical Group, LLC
634 mi
Family Medicine
12 MEDICAL DR NE
Cartersville, GA 30121
  • Reassigned Medicare billing, Georgia enrollment
  • 3,885 clinicians in this Medicare group
NPI 1588059653 (770) 386-1000
Mak Anesthesia Holdings LLC
651 mi
Anesthesiology
1300 RIDENOUR BLVD NW STE 300
Kennesaw, GA 30152
  • Reassigned Medicare billing, Georgia enrollment
  • 629 clinicians in this Medicare group
NPI 1912452939 (770) 702-1806

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wellstar Kennestone Regional Medical Center

Acute Care Hospitals · Marietta, GA
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number110035
Location677 Church StreetMarietta, GA 30060 · Cobb County
Emergency services Birthing friendly

Wellstar Cobb Medical Center

Acute Care Hospitals · Austell, GA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number110143
Location3950 Austell RdAustell, GA 30106 · Cobb County
Birthing friendly

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.

TRACY BLAIR WANDTKE HERRMANN APNP, CNM
Advanced Practice Midwife
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-4777
DR. ZACHARY SMITH DO
Internal Medicine (Gastroenterology)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 955-6830
DR. COLLEEN ANN CROWE M.D., M.P.H.
Emergency Medicine
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6469
ROBERTO MEJIAS APNP
Nurse Practitioner (Pediatrics)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6600
MRS. ANNE E B LAKATOS APN-BC, APNP, RN
Nurse Practitioner (Adult Health)
9200 W WISCONSIN AVE, DEPT OF INTERNAL MEDICINE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6850
MRS. AMANDA M MANDERS APNP
Nurse Practitioner (Adult Health)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6850
KATHLEEN A WATERHOUSE-SKIBICKI CRNA
Nurse Anesthetist, Certified Registered
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-5951
ANDREA L BEQUEST PA
Physician Assistant (Medical)
9200 W WISCONSIN AVE, INTERNAL MEDICINE
MILWAUKEE, WI 53226
Milwaukee County (414) 955-0350

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 Ryan Whitehouse's NPI number?

The NPI number for Ryan Whitehouse is 1083367593. It was assigned to this individual provider in the NPPES registry on February 3, 2022.

Where is Ryan Whitehouse located?

Ryan Whitehouse practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 805-6100.

What is Ryan Whitehouse's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Ryan Whitehouse enrolled in Medicare?

Yes. Ryan Whitehouse is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ryan Whitehouse's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Whitehouse reassigns Medicare benefits to 2 organizations: Wellstar Medical Group, LLC (Cartersville, GA) and Mak Anesthesia Holdings LLC (Kennesaw, GA). 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 Ryan Whitehouse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ryan Whitehouse accept?

Health plans from Oscar Health list Ryan Whitehouse 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.

Is Ryan Whitehouse affiliated with any hospitals?

According to CMS data, Ryan Whitehouse is affiliated with Wellstar Kennestone Regional Medical Center and Wellstar Cobb Medical Center.

When was this NPI record last updated?

The NPPES record for Ryan Whitehouse was last updated on September 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.