Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marissa C. Grant, DO

Individual provider General Practice Physician · NPI 1134784796

Marissa C. Grant, DO practises Anesthesiology in Columbus, Ohio. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2019, 7 years ago. Practices with Phs Anesthesia Billing, LLC, a 239-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Ohio and Virginia.

Years since qualifying
7
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
OH, VA
In the registry since
2019
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

410 W 10th Ave
Columbus, OH 43210-1240
Phone: (614) 293-8487
Fax: (614) 293-8153
Show map & directions

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

Additional practice locations (3)

  • 4881 Sugar Maple Dr, Wright Patterson Afb, OH 45433-5529 — (937) 257-0837
  • 3551 Roger Brooke Dr, Jbsa Ft Sam Houston, TX 78234-4504 — (210) 916-8666
  • 1100 Wilford Hall Loop Bldg 4554, Jbsa Lackland, TX 78236 — (210) 916-8666

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 34.016761.MIL (OH)
General Practice Physician Taxonomy 208D00000X · Licence 0102206367 (VA)

Record details

NPI number1134784796
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 8, 2019
Last updated in NPPESMarch 18, 2026
Certification dateMarch 18, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2019 (7 years in practice)
Group practice Phs Anesthesia Billing, Llc — 239 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients44
Services billed 55 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 $17 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Phs Anesthesia Billing, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 239 clinicians in the practice; 12 are shown here.

Other providers in Columbus