Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Margaret Ann Gressle, ACNP-BC

Individual provider Acute Care Nurse Practitioner · NPI 1003119132

MS. Margaret Ann Gressle, ACNP-BC is a Nurse Practitioner in Port Huron, Michigan. Graduated from Wayne State University School of Medicine in 2010, 16 years ago. Practices with Oak Street Health Care Center P C, a 3-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
16
Trained at
Wayne State University School of Medicine
Licensed in
MI
In the registry since
2010
Specialties on file
2
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Practice location Address checks out

1221 Pine Grove Ave
Port Huron, MI 48060-3511
Phone: (810) 987-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2601 Electric Ave, Port Huron, MI 48060-6587 — (810) 985-1500

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 4704235966 (MI)
Registered Nurse Taxonomy 163W00000X · Licence 4704235966 (MI)

Record details

NPI number1003119132
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP-BC
Sole proprietorNo
NPI enumeratedDecember 12, 2010
Last updated in NPPESMarch 17, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Oak Street Health Care Center P C — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients75
Services billed 137 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $128 6 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Oak Street Health Care Center P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Port Huron