Marissa Shields, LMSW - Medicare Clinical Social Worker in Northville, MI

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Marissa Shields, LMSW is a medicare enrolled "Social Worker" provider in Northville, Michigan. Her current practice location is 21500 Haggerty Rd Ste 350, Northville, Michigan. You can reach out to her office (for appointments etc.) via phone at (734) 265-0841.

Marissa Shields is licensed to practice in Michigan (license number 6801115454) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1104525294.

Contact Information

Marissa Shields, LMSW
21500 Haggerty Rd Ste 350,
Northville, MI 48167-8992
(734) 265-0841
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameMarissa Shields
GenderFemale
SpecialitySocial Worker
Location21500 Haggerty Rd Ste 350, Northville, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1104525294
  • Provider Enumeration Date: 02/27/2023
  • Last Update Date: 07/22/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5193190551
  • Enrollment ID: I20230417002401

Medical Identifiers

Medical identifiers for Marissa Shields such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104525294NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 6801115454 (Michigan)Secondary
104100000XSocial Worker 6801115454 (Michigan)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Marissa Shields allows following entities to bill medicare on her behalf.
Entity NameUniversity Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447299797
PECOS PAC ID: 8628087681
Enrollment ID: O20060419000518
Entity NameSally Barbat Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356969810
PECOS PAC ID: 4183032998
Enrollment ID: O20210415002383

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Marissa Shields is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Marissa Shields, LMSW
21500 Haggerty Rd Ste 350,
Northville, MI 48167-8992

Ph: (734) 265-0841		Marissa Shields, LMSW
21500 Haggerty Rd Ste 350,
Northville, MI 48167-8992

Ph: (734) 265-0841

Reviews and Comments


Social Worker in Northville, MI

Mrs. Keely F Bartel, L.M.S.W.
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 413 Beal St, Northville, MI 48167
Phone: 248-767-0241    
Jennifer Lynn Cotter, LMSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 41740 6 Mile Rd Ste 103, Northville, MI 48168
Phone: 734-542-6969    
Katie Lynn Krajewski-kidd, TLLP, LLMSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 315 N Center St, Northville, MI 48167
Phone: 313-656-4052    
Samantha Ashlee Guyah, MSW
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 39901 Traditions Dr, Northville, MI 48168
Phone: 734-998-2020    
Amanda Rose-horne, LMSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 58171 8 Mile Rd, Northville, MI 48167
Phone: 248-207-5143    
Michelle Byers, LMSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 17706 Stonebrook Dr, Northville, MI 48168
Phone: 574-214-9078    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.