OrganizationActive
Gregory D. Andreassian M.D., P.A.
NPI 1770762551 · Specialist · Fredericksburg, TX
Gregory D. Andreassian M.D., P.A. is a Specialist organization in Fredericksburg, TX (NPI 1770762551).
Provider details
- NPI number
- 1770762551
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Gregory Andreassian, Medical Physician(830) 997-6773
- License
- H0136 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
205 W Windcrest St
Suite 220
Fredericksburg, TX 78624-4479
Phone: (830) 997-6773
Fax: (830) 997-1961
Street-level locationGet directions
Mailing address
205 W Windcrest St
Fredericksburg, TX 78624-4479
Registry dates
- Enumerated
- 2007-10-30
- Last updated
- 2010-08-06
Frequently asked questions
- What is Gregory D. Andreassian M.D., P.A.'s NPI number?
- Gregory D. Andreassian M.D., P.A.'s National Provider Identifier (NPI) is 1770762551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory D. Andreassian M.D., P.A.?
- Gregory D. Andreassian M.D., P.A. is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Gregory D. Andreassian M.D., P.A. located?
- Gregory D. Andreassian M.D., P.A.'s practice location on file with NPPES is 205 W Windcrest St, Fredericksburg, TX 78624-4479.
- What is Gregory D. Andreassian M.D., P.A.'s phone number?
- The practice phone number listed in the NPPES registry for Gregory D. Andreassian M.D., P.A. is (830) 997-6773.
- Who is the authorized official for Gregory D. Andreassian M.D., P.A.?
- The authorized official listed on Gregory D. Andreassian M.D., P.A.'s NPPES record is Gregory Andreassian, Medical Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory D. Andreassian M.D., P.A.'s NPI active?
- Yes — Gregory D. Andreassian M.D., P.A.'s NPI (1770762551) is active in the NPPES registry as of the last update on 2010-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.