Active NPI
Ruth Mahmood, MD
- Internal Medicine Physician
- Weston, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 54044
- Practice address
- 3400 Ministry Pkwy
Weston, WI 54476-5220 - Phone
- (715) 393-3000
- NPI assigned
- Jan 20, 2009
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hospitalist Physician | 208M00000X | 54044 | WI | |
| Internal Medicine Physician | 207R00000X | 54044 | WI | Primary |
Addresses
Primary practice location
3400 Ministry Pkwy
Weston, WI 54476-5220
Mailing address
3400 Ministry Pkwy
Weston, WI 54476-5220
Phone (715) 393-3000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20101026000991 | WI | Practitioner - Internal Medicine | 9234322900 | Reassigns benefits to 13 organizations |
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 1992
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
- MCHS Hospitals Inc
Practice addresses (Care Compare)
1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511
200880 Canopy LN
Rosholt, WI 54473-6705
Phone (715) 439-3084
6105 Babl LN
Weston
Schofield, WI 54476-1966
Phone (715) 574-0413
Hospital & facility affiliations
- Compassus Central Wisconsin
- Compassus Wausau
- Moments Hospice of Green Bay
- Marshfield Medical Center - Weston
- Marshfield Medical Center
- Aspirus Wausau Hospital
- Pam Health Rehabilitation Hospital of Wausau
- Nu Roc Health and Rehabilitation CTR
- Abbotsford Health Care Center
- Eastview Health and Rehabilitation Center
- Careview Health and Rehab of Minocqua
- Pride TLC Therapy and Living Campus
Merit-based Incentive Payment System (MIPS)
- Final score
- 99.45 of 100
- Quality
- 90.06
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 87.15 of 100
- Quality
- 73.7
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 76.71
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.56 of 100
- Quality
- 87.43
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 78.24
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 54044 | WI | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| 3D Healthcare Consulting LLC | Current | Accepting new patients | |
| MCHS Hospitals Inc | Internal Medicine | Current | Accepting new patients |
| Memorial Hospital Inc | Current | Accepting new patients | |
| Lakeview Medical Center Inc of Rice Lake | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Black River Health Inc | Current | Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current | Accepting new patients | |
| Memorial Hospital Inc | Current | Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current | Accepting new patients | |
| Marshfield Clinic Inc | Current | Accepting new patients | |
| Flambeau Hospital Inc | Current | Accepting new patients | |
| Black River Health Inc | Current | Accepting new patients | |
| Bedrock HCS at Abbotsford LLC | Current | Accepting new patients | |
| J Rapha, SC | Internal Medicine | Current | Accepting new patients |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Black River Memorial Hospital Inc | Current | Accepting new patients | |
| Flambeau Hospital Inc | Current | Accepting new patients | |
| MCHS Hospitals Inc | Internal Medicine | Current | Accepting new patients |
Locations
N10565 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500
N10561 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500
705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090
711 W Adams St
Blk River Fls, WI 54615
Phone (715) 284-1302
610 W Adams St
Blk River Fls, WI 54615
Phone (715) 284-4311
201 Hospital Rd
Eagle River, WI 54521
Phone (715) 477-3000
3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200
1000 Starr Ave
Eau Claire, WI 54703
Phone (715) 858-4850
1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111
601 S Center Ave
Merrill, WI 54452
Phone (715) 536-5511
1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399
N3708 River Ave
Neillsville, WI 54456
Phone (715) 743-3101
2251 N Shore Dr
Ste 100
Rhinelander, WI 54501
Phone (715) 361-2074
1700 W Stout St
Rice Lake, WI 54868
Phone (715) 236-6133
1120 Pine St
Stanley, WI 54768
Phone (715) 644-5530
900 Illinois Ave
Stevens Point, WI 54481
Phone (715) 342-7500
401 W Mohawk Dr
Ste 100
Tomahawk, WI 54487
Phone (715) 453-7700
333 Pine Ridge Blvd
Wausau, WI 54401
Phone (715) 847-2160
1111 Westwood Dr
Wausau, WI 54401
Phone (715) 907-8419
3400 Ministry Pkwy
Weston, WI 54476
Phone (715) 393-1000
7805 Birch St
Weston, WI 54476
Phone (715) 298-3833
240 Maple St
Woodruff, WI 54568
Phone (715) 356-8000
Interoperability endpoints
- https://fhir-myrecord.cerner.com/r4/7b17929a-d976-4002-b080-2a37b05f2444/
- ruth.mahmood@marshfieldclinichealthsystem.cernerdirect.com
Ownership & related parties
All facility ownership & control disclosures 2
Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| Abbotsford Health Care Center | Skilled nursing facility | Operational/Managerial Control Adp of the SNF |
Jun 8, 2025 Jun 8, 2025 |
| Compassus - Central Wisconsin | Hospice | Contracted Managing Employee | Oct 1, 2023 |
Owned or controlled facilities with NPI records 2
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
- Skilled Nursing Facility
- Abbotsford, WI
- NPI 1154971364
Adp of the SNF, Operational/Managerial Control
-
- Community Based Hospice Care Agency
- Marshfield, WI
- NPI 1902413180
Contracted Managing Employee
Organizations & group practices 18
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Pharmacy
- Beaver Dam, WI
- NPI 1295771780
Hospital & facility affiliations 21
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Skilled Nursing Facility
- Minocqua, WI
- NPI 1821825084
Nursing home
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1232409600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778457600000",
"number": "1659518199",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3400 MINISTRY PKWY",
"city": "WESTON",
"state": "WI",
"postal_code": "544765220",
"telephone_number": "715-393-3000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3400 MINISTRY PKWY",
"city": "WESTON",
"state": "WI",
"postal_code": "544765220",
"telephone_number": "715-393-3000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAHMOOD",
"first_name": "RUTH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2009-01-20",
"last_updated": "2026-05-11",
"certification_date": "2026-05-11",
"status": "A"
},
"taxonomies": [
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "WI",
"license": "54044",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "WI",
"license": "54044",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Weston, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 11, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.