Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marshon M Isaac Sr.

Individual provider Family Nurse Practitioner · NPI 1366057325

Marshon M Isaac Sr. is a Nurse Practitioner in Baton Rouge, Louisiana. Qualified in 2020, 6 years ago. Practices with Spencer J Hardenbrook MD PC, a 93-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
6
Licensed in
LA
In the registry since
2020
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Practice location Address checks out

1857 Wooddale Blvd
Baton Rouge, LA 70806-1510
Phone: (800) 640-3451
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Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1731 Lutcher Ave, Lutcher, LA 70071-5151 — (225) 390-0731
  • 3905 Highway 75, Saint Gabriel, LA 70776-4303 — (225) 642-1322

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 214812 (LA)

Record details

NPI number1366057325
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedSeptember 15, 2020
Last updated in NPPESDecember 5, 2024
Certification dateDecember 5, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Spencer J Hardenbrook Md Pc — 93 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 $124 1 payment · 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.

Colleagues at Spencer J Hardenbrook MD PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 93 clinicians in the practice; 12 are shown here.

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