MRS. ANASTASIA TERESCHUK-PHILLIPS
NPI 1720319940
Nurse Practitioner - Psychiatric/Mental Health in Sandusky, MI
About Mrs. Anastasia Tereschuk-phillips NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ANASTASIA TERESCHUK-PHILLIPS (NPI 1720319940) is an individual psychiatric/mental health provider in Sandusky, Michigan, licensed in Michigan (4704300715) and active in the NPI registry since January 2010. She is enrolled in Medicare PECOS, is affiliated with Upper Connecticut Valley Hospital, and maintains a secondary practice location in Berlin.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Secondary Practice Location 1
Other Identifiers 3
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
Mrs. Anastasia Tereschuk-phillips 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 Reassignment
Medicare enrollment records show Anastasia Tereschuk-phillips reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Berlin, NH 03570
- Reassigned Medicare billing, New Hampshire enrollment
- Also billed through NPI 1386680593 (New Hampshire)
- 129 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upper Connecticut Valley Hospital
Critical Access Hospitals · Colebrook, NHAndroscoggin Valley Hospital
Critical Access Hospitals · Berlin, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48471 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Tereschuk-phillips's NPI number?
The NPI number for Anastasia Tereschuk-phillips is 1720319940. It was assigned to this individual provider in the NPPES registry on January 28, 2010. The provider is also known as Mrs. Anastasia Mikel Tereschuk Msn Acnp-Bc Pmhnp-Bc.
Where is Anastasia Tereschuk-phillips located?
Anastasia Tereschuk-phillips practices at 425 W Sanilac Rd, Sandusky, MI 48471. The listed phone number is (615) 509-2664.
What is Anastasia Tereschuk-phillips's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Anastasia Tereschuk-phillips enrolled in Medicare?
Yes. Anastasia Tereschuk-phillips 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 organization bills Medicare for Anastasia Tereschuk-phillips's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anastasia Tereschuk-phillips reassigns Medicare benefits to Androscoggin Valley Hospital Inc (Berlin, NH). The 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 Tereschuk-phillips's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anastasia Tereschuk-phillips accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and CareSource list Anastasia Tereschuk-phillips 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 Tereschuk-phillips affiliated with any hospitals?
According to CMS data, Anastasia Tereschuk-phillips is affiliated with Upper Connecticut Valley Hospital and Androscoggin Valley Hospital.
When was this NPI record last updated?
The NPPES record for Anastasia Tereschuk-phillips was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mrs. Anastasia Tereschuk-Phillips · NPI 1720319940
Psychiatric/Mental Health physician in Sandusky, Michigan. Individual provider, active in the CMS NPPES registry since January 28, 2010.
## Identity
- **NPI:** 1720319940 (Entity type: Individual)
- **Enumerated:** January 28, 2010
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 4704300715 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 425 W SANILAC RD, Sandusky, MI 48471-1072
- **Phone:** (615) 509-2664
## 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:** Androscoggin Valley Hospital Inc (NPI 1679526644, Berlin, NH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** August 10, 2026
- **Other identifiers:** Medicaid 3073139 (NH); Other 1031505037 (TN); Medicaid 1518627 (TN)
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Source: [NPI Profile](https://npiprofile.com/npi/1720319940) · Data from the CMS NPPES public registry.