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

Gregory D. Andreassian MD, PA

Organization Specialist · NPI 1770762551

Gregory D. Andreassian MD, PA is a Specialist in Fredericksburg, Texas. Licensed in Texas. Registered with an NPI since 2007.

Licensed in
TX
In the registry since
2007
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

205 W Windcrest St Ste 220
Fredericksburg, TX 78624-4479
Phone: (830) 997-6773
Fax: (830) 997-1961
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence H0136 (TX)

Record details

NPI number1770762551
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Andreassian — Medical Physician · (830) 997-6773
NPI enumeratedOctober 30, 2007
Last updated in NPPESAugust 6, 2010
Mailing address205 W Windcrest St, Suite 220, Fredericksburg, TX 78624-4479

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