Oak Medical SC

Organization Active NPI Internal Medicine Physician · Waukesha, WI

NPI 1669910345 · NPPES record last updated Jun 2, 2026

Key facts

NPI
1669910345
Entity type
Organization (NPI type 2)
Primary specialty
Internal Medicine Physician 207R00000X
Legal business name
OAK MEDICAL SC
Practice address
N20W22961 Watertown Rd
Waukesha, WI 53186-1308
Phone
(262) 875-5070
Fax
(866) 384-9486
NPI assigned
Feb 2, 2017
Organization subpart
No

Authorized official

Name
Mahtab Sidhu, M.D.
Title
Medical Director
Phone
(262) 875-5070

Owned or controlled facilities with NPI records 6

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Practitioners 204

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 204

Medicare participation

Medicare fee-for-service enrollment
Enrolled in WI

All facility ownership & control disclosures 6

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Maplewood Center
West Allis, WI · CCN 525069
Skilled nursing facility Adp of the SNF Apr 8, 2025
Brown County Community Treatment Center - Bayshore Village
Green Bay, WI · CCN 525693
Skilled nursing facility Adp of the SNF Oct 29, 2022
Holton Manor
Elkhorn, WI · CCN 525541
Skilled nursing facility Adp of the SNF Jan 14, 2019
Geneva Lake Manor
Lake Geneva, WI · CCN 525565
Skilled nursing facility Adp of the SNF Oct 10, 2022
Careview Health and Rehab of Minocqua
Minocqua, WI · CCN 525678
Skilled nursing facility Adp of the SNF Dec 14, 2024
Hillsboro Health and Rehab LLC
Hillsboro, OH · CCN 365994
Skilled nursing facility Adp of the SNF Jun 30, 2025

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
O20170331001848 WI Part B Supplier - Clinic/Group Practice 0042595175 Receives reassigned benefits from 196 practitioners
Practice locations: Milwaukee, WI; Oconomowoc, WI; Watertown, WI; Waukesha, WI; Menomonee Falls, WI; Brookfield, WI; Elkhorn, WI; Germantown, WI…

National Provider Directory

Locations

400 N Main St
Dousman, WI 53118
Phone (262) 965-2111

W173N10915 Bernies Way
Germantown, WI 53022
Phone (262) 509-3300

2428 N Grandview Blvd
Waukesha, WI 53188
Phone (262) 875-5070

1200 Delafield St
Waukesha, WI 53188
Phone (262) 297-0724

N20W22961 Watertown Rd
Waukesha, WI 53186
Phone (262) 875-5070

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician
Group: 193400000X SINGLE SPECIALTY GROUP
207R00000X Yes
Physical Medicine & Rehabilitation Physician
Group: 193200000X MULTI-SPECIALTY GROUP
208100000X
Psychiatric/Mental Health Nurse Practitioner
Group: 193200000X MULTI-SPECIALTY GROUP
363LP0808X

Addresses

Primary practice location

N20W22961 Watertown Rd
Waukesha, WI 53186-1308

Mailing address

N20W22961 Watertown Rd
Waukesha, WI 53186-1308
Phone (262) 875-5070

Other providers in Waukesha, WI

All providers in Waukesha, WI · Internal Medicine Physician in Wisconsin

Sources for this page

Verify at the official NPI Registry.