What is Donna Markos's NPI number?

Donna Markos's National Provider Identifier (NPI) is 1306783378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Donna Markos's specialty?

Donna Markos is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).

Where is Donna Markos located?

Donna Markos's practice location on file with NPPES is 6500 West Loop S Ste 200d, Bellaire, TX 77401-3535.

What is Donna Markos's phone number?

The practice phone number listed in the NPPES registry for Donna Markos is (713) 486-9300.

Is Donna Markos's NPI active?

Yes — Donna Markos's NPI (1306783378) is active in the NPPES registry as of the last update on 2026-04-29.

IndividualActive

Donna Markos, RN, IBCLC

NPI 1306783378 · Lactation Consultant (Registered Nurse) · Bellaire, TX

Donna Markos, RN, IBCLC is a Lactation Consultant (Registered Nurse) provider in Bellaire, TX (NPI 1306783378).

Provider details

NPI number: 1306783378
Entity type: Individual
Primary specialty: Lactation Consultant (Registered Nurse)Nursing Service Providers
Credential: RN, IBCLC
Sex: Female
Sole proprietor: No
License: 568916 (TX)

Specialties & taxonomies

Lactation Consultant (Registered Nurse)Primary163WL0100XLicense 568916 (TX)
Nursing Service Providers

Profile Score

Established profile(62/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
4 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

6500 West Loop S Ste 200d

Bellaire, TX 77401-3535

Phone: (713) 486-9300

Approximate (ZIP-level) locationGet directions

More TX providers

Mailing address

6050 Lymbar Dr

Houston, TX 77096-4713

Additional practice locations (3)

1631 North Loop W Ste 220
Houston, TX 77008-1530
Phone: (713) 486-7900
929 Gessner Rd Ste 1300
Houston, TX 77024-2469
Phone: (713) 486-6600
6410 Fannin St Ste 250
Houston, TX 77030-3004
Phone: (832) 325-7131
Fax: (713) 512-2216

Enumerated: 2026-04-29
Last updated: 2026-04-29
Certified: 2026-04-29

Frequently asked questions

What is Donna Markos's NPI number?: Donna Markos's National Provider Identifier (NPI) is 1306783378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Donna Markos's specialty?: Donna Markos is listed in the NPPES registry with a primary specialty of Lactation Consultant (Registered Nurse) (Nursing Service Providers).
Where is Donna Markos located?: Donna Markos's practice location on file with NPPES is 6500 West Loop S Ste 200d, Bellaire, TX 77401-3535.
What is Donna Markos's phone number?: The practice phone number listed in the NPPES registry for Donna Markos is (713) 486-9300.
Is Donna Markos's NPI active?: Yes — Donna Markos's NPI (1306783378) is active in the NPPES registry as of the last update on 2026-04-29.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.