MISS ERIN VLIETSTRA MSW
NPI 1699187138
Social Worker - Clinical in Portage, MI

Active since June 02, 2014PECOS EnrolledAccepts Medicare Assignment
800 E MILHAM AVE STE 200, PORTAGE, MI 49002(269) 249-7179 Get Directions Write a Review

NPPES record last updated: May 11, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 11, 2021, Apr 29, 2021, Sep 25, 2020 and 2 more (5 updates tracked since 2017).

About Miss Erin Vlietstra Msw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MISS ERIN VLIETSTRA MSW (NPI 1699187138) is an individual clinical provider in Portage, Michigan, licensed in Michigan (6801095955) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lowell, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1699187138
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMISS ERIN VLIETSTRACredential: MSW
Location Address800 E MILHAM AVE STE 200Portage, MI 49002-1492
Mailing Address800 E Milham Ave Ste 200Portage, MI 49002-1492 · (269) 249-7179
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateJune 2, 2014
Last NPPES UpdateMay 11, 20215 updates tracked since enumeration
NPPES CertifiedMay 11, 2021
✔ NPI 1699187138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MI · 6801095955
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
800 E MILHAM AVE STE 200, Portage, MI 49002

Other Names 1

Former Name (1)Erin Anstey

Secondary Practice Location 1

Location 111652 W Grand River AveLowell, MI 49331-8465 · Phone (616) 248-5131

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

Miss Erin Vlietstra Msw 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.

PECOS PAC ID8325305998
PECOS Enrollment IDI20171207000135
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show Erin Vlietstra reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinical
246 E KILGORE RD
Portage, MI 49002
  • Reassigned Medicare billing, Michigan enrollment
  • 18 clinicians in this Medicare group
Hospitalist
601 JOHN STREET
Kalamazoo, MI 49007
  • Reassigned Medicare billing, Michigan enrollment
  • 1,133 clinicians in this Medicare group
Psychologist
4328 W MICHIGAN AVE
Kalamazoo, MI 49006
  • Reassigned Medicare billing, Michigan enrollment
  • 12 clinicians in this Medicare group
Internal Medicine
451 HEALTH PKWY
Paw Paw, MI 49079
  • Reassigned Medicare billing, Michigan enrollment
  • 251 clinicians in this Medicare group
Internal Medicine
300 NORTH AVE
Battle Creek, MI 49017
  • Reassigned Medicare billing, Michigan enrollment
  • 557 clinicians in this Medicare group
Family Medicine
950 S BAILEY AVE
South Haven, MI 49090
  • Reassigned Medicare billing, Michigan enrollment
  • 190 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49002 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $54.34 – $166.68
Typical copayment $0.00 (range $13.58 – $41.67)
Most-billed visit code NA
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
800 E MILHAM AVE STE 200
PORTAGE, MI 49002
Social Worker (Clinical)
800 E MILHAM AVE STE 200
PORTAGE, MI 49002
Social Worker (Clinical)
800 E MILHAM AVE STE 200
PORTAGE, MI 49002
Social Worker (Clinical)
800 E MILHAM AVE STE 200
PORTAGE, MI 49002
Social Worker (Clinical)
800 E MILHAM AVE STE 200
PORTAGE, MI 49002

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 Erin Vlietstra's NPI number?

The NPI number for Erin Vlietstra is 1699187138. It was assigned to this individual provider in the NPPES registry on June 2, 2014. The provider is also known as Erin Anstey.

Where is Erin Vlietstra located?

Erin Vlietstra practices at 800 E Milham Ave Ste 200, Portage, MI 49002. The listed phone number is (269) 249-7179.

What is Erin Vlietstra's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Erin Vlietstra enrolled in Medicare?

Yes. Erin Vlietstra 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 Erin Vlietstra's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Vlietstra reassigns Medicare benefits to 6 organizations: Restorative Therapy & Counseling Services (Portage, MI), Bronson Methodist Hospital (Kalamazoo, MI), Neuropsychology Associates Plc (Kalamazoo, MI), Bronson Lakeview Hospital (Paw Paw, MI), Bronson Battle Creek Hospital (Battle Creek, MI) and 1 more organization, 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 Erin Vlietstra's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Erin Vlietstra accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Erin Vlietstra 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.

When was this NPI record last updated?

The NPPES record for Erin Vlietstra was last updated on May 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.