Lonna L Grosskopf, CRNA
Individual provider Active NPI Certified Registered Nurse Anesthetist · Woodruff, WI
NPI 1003856618 · NPPES record last updated Feb 11, 2026
Key facts
- NPI
- 1003856618
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Certified Registered Nurse Anesthetist 367500000X
- License
- 1152 (WI)
- Practice address
- 240 Maple St
Woodruff, WI 54568-0470 - Phone
- (715) 356-8000
- NPI assigned
- Jun 8, 2006
- Sex
- Female
- Sole proprietor
- No
Organizations & group practices 35
Hospital & facility affiliations 3
Medicare Care Compare profile
- Specialty
- Certified Registered Nurse Anesthetist (Crna)
- Education
- Other, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- MCHS Hospitals Inc
Gastrointestinal Associates S.C.
Beaver Dam Community Hospitals Inc.
Aspirus Ironwood Hospital and Clinics Inc
Practice addresses (Care Compare)
1000 N Oak Ave
Marshfield, WI 54449-5703
Phone (715) 387-5511
411 Westwood Dr
Wausau, WI 54401-4152
Phone (715) 847-2558
705 S University Ave
MMC Beaver Dam Medical Offices
Beaver Dam, WI 53916-3053
Phone (920) 887-7181
707 S University Ave
MMC Beaver Dam Hospital
Beaver Dam, WI 53916-3027
Phone (920) 887-7181
9576 Hwy 70
Minocqua, WI 54548-9067
Phone (715) 358-1710
N10561 Grandview LN
Ironwood, MI 49938-9622
Phone (906) 932-2525
N10561 Granview LN
Grand View Hospital
Ironwood, MI 49938-9622
Phone (906) 932-2525
N10565 Grandview LN Aspirus Ironwood
Aspirus Palliative Medicine Michi
Ironwood, MI 49938-9622
Phone (715) 843-1067
Hospital & facility affiliations
- Marshfield Medical Center - Beaver Dam (MMC-BD)
- Marshfield Medical Center - Minocqua
Merit-based Incentive Payment System (MIPS)
- Final score
- 78.6 of 100
- Quality
- 56.02
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 72.66
Merit-based Incentive Payment System (MIPS)
- Final score
- 90.86 of 100
- Quality
- 86.95
- Promoting interoperability
- 100
Merit-based Incentive Payment System (MIPS)
- Final score
- 80.58 of 100
- Quality
- 55.5
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 71.46
Merit-based Incentive Payment System (MIPS)
- Final score
- 82.72 of 100
- Quality
- 64.71
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 65.56
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (2 enrollments) in WI, MI
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20100621000934 | WI | Practitioner - Certified Registered Nurse Anesthetist (Crna) | 4284765116 | Reassigns benefits to 13 organizations |
| I20101206000308 | MI | Practitioner - Certified Registered Nurse Anesthetist (Crna) | 4284765116 | Reassigns benefits to 2 organizations |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1152 | WI | MD | Behavioral Analyst |
| 91239-030 | WI | MD | Registered Nurse |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Gastrointestinal Associates S.C. | Current |
Accepting new patients | |
| Marshfield Clinic Inc | Current |
Accepting new patients | |
| Memorial Hospital Inc | Current |
Accepting new patients | |
| The Howard Young Medical Center, Inc. | Current |
Accepting new patients | |
| Langlade Hospital - Hotel Dieu of St Joseph of Antigo Wisconsin | Current | Accepting new patients | |
| The Howard Young Medical Center, Inc. | Current | Accepting new patients | |
| Aspirus Stevens Point Hospital & Clinics, Inc. | Current |
Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Independent Surgery Center LLC | Current |
Accepting new patients | |
| The Howard Young Medical Center, Inc. | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Aspirus Ironwood Hospital & Clinics, Inc. | Current |
Accepting new patients | |
| Aspirus Medical Group, Inc. | Current |
Accepting new patients | |
| Langlade Hospital - Hotel Dieu of St. Joseph of Antigo Wisconsin | Current |
Accepting new patients | |
| Lakeview Medical Center Inc of Rice Lake | Current |
Accepting new patients | |
| Aspirus Stevens Point Hospital & Clinics, Inc. | Current |
Accepting new patients | |
| Flambeau Hospital Inc | Current |
Accepting new patients | |
| MCHS Hospitals Inc | Current |
Accepting new patients | |
| Flambeau Hospital Inc | Current | Accepting new patients | |
| Aspirus Ironwood Hospital & Clinics, Inc. | Current | Accepting new patients | |
| Lakeview Medical Center Inc of Rice Lake | Current |
Accepting new patients | |
| MCHS Hospitals Inc | Current |
Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current |
Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current |
Accepting new patients |
Locations
29980 Network Pl
Chicago, IL 60673
1400 W Ice Lake Rd
Iron River, MI 49935
Phone (906) 265-6121
N10565 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500
N10561 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500
112 E 5th Ave
Antigo, WI 54409
Phone (715) 623-2331
705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090
2751 Commercial Blvd
Ste 7
Chippewa Fls, WI 54729
Phone (715) 738-1800
3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200
1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111
135 S Gibson St
Medford, WI 54451
Phone (715) 748-8100
1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399
601 S Center Ave
Merrill, WI 54452
Phone (715) 536-5511
9576 State Highway 70
Minocqua, WI 54548
Phone (715) 358-1000
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
900 Illinois Ave
Stevens Point, WI 54481
Phone (715) 342-7500
411 Westwood Dr
Wausau, WI 54401
Phone (715) 479-0374
240 Maple St
Woodruff, WI 54568
Phone (715) 356-8000
Interoperability endpoints
- him@marshfieldclinichealthsystem.cernerdirect.com
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Registered Nurse | 163W00000X | 91239-030 | WI | |
| Certified Registered Nurse Anesthetist | 367500000X | 1152 | WI | Yes |
Addresses
Primary practice location
240 Maple St
Woodruff, WI 54568-0470
Mailing address
240 Maple St
PO Box 470
Woodruff, WI 54568-0470
Phone (715) 356-8000
Other practice location 1
9576 Hwy 70
Minocqua, WI 54548-9067
Phone (715) 358-1000
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 43371600 | Medicaid | WI |
Electronic endpoints
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | him@marshfieldclinichealthsystem.cernerdirect.com | Other |
Other providers in Woodruff, WI
- Gonzalez Family Chiropractic LLC.
- Guillermo Eduardo Gonzalez
- Roger John Gorectke
- Mark W Grady
- Whitney Lynn Graham
- Ronald S Hagen
- James A. Halminiak
- Kelly E Hamerla
- Jezerae M Hansen
- Maureen B. Hartzheim
All providers in Woodruff, WI · Certified Registered Nurse Anesthetist in Wisconsin
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Feb 11, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.