NPI age
19 years
Enumerated 2006-08-15
● Active
Type 1 · Individual
DR. Muriel Ann Marshall, D.O.
Marshall is 1 of 2 preventive medicine providers in McKinney and 1 of 154 in Texas.
Primary specialty
Preventive Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-09-11
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 154 active preventive medicine providers in Texas.
NPI age
19 years
↑ 3 yr above median (16 yr)
State licenses
1 state
8% of peers hold multiple states
Subspecialties
1
In the 33% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
825 N McDonald St
McKinney, TX 750692141
Mailing address
825 N McDonald St
McKinney, TX 750692141
Specialties
-
Preventive Medicine PrimaryPublic health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with...
-
Family MedicineFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of...
Practice context
Part of a multi-provider practice. 2 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.