NPI age
— years
Enumerated 2026-04-29
● Active
Type 1 · Individual
Donna Markos, RN, IBCLC
Markos is 1 of 1 registered nurse providers in Bellaire and 1 of 353 in Texas.
Primary specialty
Registered Nurse
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-04-29
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 353 active registered nurse providers in Texas.
NPI age
0 years
↓ 3 yr below median (3 yr)
State licenses
1 state
3% of peers hold multiple states
Subspecialties
0
21% of peers hold subspecialties
NPI lifetime · 2026 → 2026
2026-04Enumerated in NPPES
2026
2026
Where they practice
Practice location
6500 West Loop S Ste 200d
Bellaire, TX 774013535
Mailing address
6050 Lymbar Dr
Houston, TX 770964713
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
6410 Fannin St Ste 250
Houston, TX 770303004
Location 3
1631 North Loop W Ste 220
Houston, TX 770081530
Location 4
929 Gessner Rd Ste 1300
Houston, TX 770242469
Specialties
-
Registered Nurse PrimaryDefinition to come...
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.