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ANDREA SIEG MSW
NPI 1487099297
Social Worker in Ann Arbor, MI

Active since May 07, 2013PECOS EnrolledAccepts Medicare Assignment
950 VICTORS WAY STE 10, ANN ARBOR, MI 48108(734) 975-5000 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Andrea Sieg Msw NPPES

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

ANDREA SIEG MSW (NPI 1487099297) is an individual social worker in Ann Arbor, Michigan, licensed in Michigan (6801095127) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Ann Arbor, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2009).

NPPES Registry Identity

NPI1487099297
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameANDREA SIEGCredential: MSW
Location Address950 VICTORS WAY STE 10Ann Arbor, MI 48108-5217
Mailing AddressPo Box 40412Belfast, ME 04915-1255 · (734) 975-5000
Phone(734) 975-5000
Sole ProprietorYes
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2009
Enumeration DateMay 7, 2013
Last NPPES UpdateJune 23, 2026
NPPES CertifiedJune 23, 2026
✔ NPI 1487099297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in MI · 6801095127
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
950 VICTORS WAY STE 10, Ann Arbor, MI 48108
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Secondary Practice Location 1

Location 1150 S 5th Ave, Suite 204Ann Arbor, MI 48104-1999 · Phone (734) 330-7629

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

Andrea Sieg 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 ID2860875861
PECOS Enrollment IDI20220823002909
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 Reassignment

Medicare enrollment records show Andrea Sieg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Vpa PC
30 mi
Family Medicine
21540 W 11 MILE RD STE 200
Southfield, MI 48076
  • Reassigned Medicare billing, Michigan enrollment
  • 279 clinicians in this Medicare group
NPI 1245859446 (248) 352-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 3

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

TIFFANY MARTINEZ FNP-C
Nurse Practitioner (Family)
950 VICTORS WAY STE 10
ANN ARBOR, MI 48108
Washtenaw County (734) 975-5000
ELIZABETH ANN HABRECHT PA-C
Physician Assistant
950 VICTORS WAY STE 10
ANN ARBOR, MI 48108
Washtenaw County (734) 975-5000
MRS. ASHLEY MAE HOWARD NP-C
Nurse Practitioner
950 VICTORS WAY STE 10
ANN ARBOR, MI 48108
Washtenaw County (734) 975-5000

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 Andrea Sieg's NPI number?

The NPI number for Andrea Sieg is 1487099297. It was assigned to this individual provider in the NPPES registry on May 7, 2013.

Where is Andrea Sieg located?

Andrea Sieg practices at 950 Victors Way Ste 10, Ann Arbor, MI 48108. The listed phone number is (734) 975-5000.

What is Andrea Sieg's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Andrea Sieg enrolled in Medicare?

Yes. Andrea Sieg 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 Andrea Sieg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrea Sieg reassigns Medicare benefits to Vpa PC (Southfield, MI). 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 Andrea Sieg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Andrea Sieg was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.