Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Ann Washington MD, PA

Organization Nephrology Physician · NPI 1346612918

Mary Ann Washington MD, PA provides Nephrology Physician services in Houston, Texas. Licensed in Texas. Registered with an NPI since 2015.

Licensed in
TX
In the registry since
2015
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1140 Westmont Dr Ste 320
Houston, TX 77015-4363 Not confirmed with CMS for 10 years — call before visiting
Phone: (713) 637-6320
Fax: (713) 637-0590
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence J0721 (TX)

Record details

NPI number1346612918
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Camille Guillen — Clinical Supervisor · (713) 637-6320
NPI enumeratedOctober 22, 2015
Last updated in NPPESJune 28, 2016
Mailing address5116 Bissonnet St, Suite 459, Bellaire, TX 77401-4007

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