Anastasia Osipova, MD,PHD
Obstetrics & Gynecology · Marshfield, WI
At a glance
Marshfield Clinic, Marshfield, WI 54449-5703
NPPES record updated Jan 14, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
Marshfield Clinic 1000 N Oak AvenueMarshfield, WI 54449-5703
Additional reported practice locations
N2950 State Road 67Lake Geneva, WI 531472655
Phone: 2622454990
Fax: 2622452248 10400 Haligus Rd
Huntley, IL 601429553
Phone: 8153562323
Fax: 8478027201
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1996
- CMS specialties
- Obstetrics/Gynecology
Practice groups
Reported hospital affiliations
- Mercy Harvard Hospital Harvard, IL
- Mercy Health System Corp Janesville, WI
- Northwestern Medicine Mchenry Mchenry, IL
- St Mary Medical Center Inc Hobart, IN
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Obstetrics & Gynecology
- Taxonomy code
- 207V00000X
- Enumeration date
- Mar 30, 2012
- Record updated
- Jan 14, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD,PHD
Reported taxonomies and licenses
207VG0400X
License reported: 036127848 IL
207V00000X · Primary
License reported: 63050-20 WI
207V00000X
License reported: 036127848 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
Marshfield Clinic1000 N Oak Avenue
Marshfield, WI 54449-5703
- Phone
- (715) 387-5511
Mailing address
10400 HALIGUS RDHUNTLEY, IL 601429553
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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