ANASTASIA OSIPOVA MD,PHD
NPI 1073889382
Obstetrics & Gynecology in Marshfield, WI
About Anastasia Osipova Md,phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANASTASIA OSIPOVA MD,PHD (NPI 1073889382) is an individual obstetrics & gynecology provider in Marshfield, Wisconsin, licensed in Wisconsin (63050-20) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Anastasia Osipova Md,phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
13Medicare enrollment records show Anastasia Osipova reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Cresco, IA 52136
- Reassigned Medicare billing, Iowa enrollment
- 420 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 clinicians in this Medicare group
Rockford, IL 61103
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILMercy Harvard Hospital
Critical Access Hospitals · Harvard, ILSt Mary Medical Center Inc
Acute Care Hospitals · Hobart, INMercy Health System Corp
Acute Care Hospitals · Janesville, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARSHFIELD, WI 54449
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 Anastasia Osipova's NPI number?
The NPI number for Anastasia Osipova is 1073889382. It was assigned to this individual provider in the NPPES registry on March 30, 2012.
Where is Anastasia Osipova located?
Anastasia Osipova practices at Marshfield Clinic 1000 N Oak Avenue, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Anastasia Osipova's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Anastasia Osipova enrolled in Medicare?
Yes. Anastasia Osipova is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Anastasia Osipova's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anastasia Osipova reassigns Medicare benefits to 13 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Flambeau Hospital Inc (Park Falls, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI) and 8 more organizations, listed in the Medicare section above. 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 Anastasia Osipova's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anastasia Osipova accept?
Health plans from Anthem Blue Cross and Blue Shield, Dean Health Plan and HealthPartners list Anastasia Osipova 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 Anastasia Osipova affiliated with any hospitals?
According to CMS data, Anastasia Osipova is affiliated with Northwestern Medicine Mchenry, Mercy Harvard Hospital, St Mary Medical Center Inc and Mercy Health System Corp.
When was this NPI record last updated?
The NPPES record for Anastasia Osipova was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Anastasia Osipova, MD,PHD · NPI 1073889382
Obstetrics & Gynecology physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since March 30, 2012.
## Identity
- **NPI:** 1073889382 (Entity type: Individual)
- **Enumerated:** March 30, 2012
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 63050-20 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** MARSHFIELD CLINIC, 1000 N OAK AVENUE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); Flambeau Hospital Inc (NPI 1194317966, Park Falls, WI); Lakeview Medical Center Inc Of Rice Lake (NPI 1659008605, Chetek, WI); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** January 14, 2026
- **Other identifiers:** Other 1073889382 (WI); Medicaid 1073889382 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1073889382) · Data from the CMS NPPES public registry.