NPI age
19 years
Enumerated 2006-08-30
● Active
Type 1 · Individual
MS. Marcia E Loomis, MSN RN CCNS AC
Loomis is 1 of 9 clinical nurse specialist providers in San Antonio and 1 of 159 in Texas.
Primary specialty
Clinical Nurse Specialist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-10-03
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 159 active clinical nurse specialist providers in Texas.
NPI age
19 years
↑ 5 yr above median (14 yr)
State licenses
1 state
1% of peers hold multiple states
Subspecialties
0
25% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
4330 Medical Drive, Suite 400
San Antonio, TX 782293324
Mailing address
4330 Medical Drive, Suite 400
San Antonio, TX 782293324
Specialties
-
Clinical Nurse Specialist PrimaryA registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one...
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.