Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Ralph Eugene Grinnell Jr., APRN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1457666109

Ralph Eugene Grinnell Jr., APRN, FNP-BC is a Nurse Practitioner in San Antonio, Texas. Graduated from University of Texas Medical School at San Antonio in 2010, 16 years ago. Practices with Tmc Provider Group PLLC, a 214-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
16
Trained at
University of Texas Medical School at San Antonio
Licensed in
TX
In the registry since
2010
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

5107 Medical Dr
San Antonio, TX 78229-4801
Phone: (210) 614-8612
Fax: (210) 615-1666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 588252 (TX)

Record details

NPI number1457666109
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN , FNP-BC
Sole proprietorNo
NPI enumeratedAugust 18, 2010
Last updated in NPPESOctober 13, 2015

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 2010 (16 years in practice)
Group practice Tmc Provider Group Pllc — 214 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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