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Gregory Hasto, O.D.
NPI 1427130988 · Optometrist · Greenville, SC
Gregory Hasto, O.D. is a Optometrist provider in Greenville, SC (NPI 1427130988).
Provider details
- NPI number
- 1427130988
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1354 (SC)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
700 Haywood Drive
Greenville, SC 29607
Phone: (864) 234-1139
Street-level locationGet directions
Mailing address
8 Shinleaf Drive
Greenville, SC 29615-4407
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Hasto's NPI number?
- Gregory Hasto's National Provider Identifier (NPI) is 1427130988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hasto's specialty?
- Gregory Hasto is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Hasto located?
- Gregory Hasto's practice location on file with NPPES is 700 Haywood Drive, Greenville, SC 29607.
- What is Gregory Hasto's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hasto is (864) 234-1139.
- Is Gregory Hasto's NPI active?
- Yes — Gregory Hasto's NPI (1427130988) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.