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

Marissa G Charles, DO

Individual provider Family Medicine Physician · NPI 1568607984

Marissa G Charles, DO is registered under Family Practice in San Antonio, Texas. Graduated from University of North Texas Hsc, College of Osteopathic Med in 2005, 21 years ago. Practices with Wellmed Medical Group PA, a 664-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
21
Trained at
University of North Texas Hsc, College of Osteopathic Med
Licensed in
TX
In the registry since
2008
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

6157 NW Loop 410 Ste 124
San Antonio, TX 78238-3302 Not confirmed with CMS for 10 years — call before visiting
Phone: (210) 523-1411
Fax: (210) 523-9307
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence M7101 (TX)

Record details

NPI number1568607984
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 15, 2008
Last updated in NPPESOctober 18, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF NORTH TEXAS HSC, COLLEGE OF OSTEOPATHIC MED
Graduated 2005 (21 years in practice)
Group practice Wellmed Medical Group Pa — 664 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 patients57
Services billed 297 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 $40 2 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.

Colleagues at Wellmed Medical Group PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 664 clinicians in the practice; 12 are shown here.

Other providers in San Antonio