IndividualActive
Rex Ballinger, OD
NPI 1124089560 · Optometrist · Baltimore, MD
Provider details
- NPI number
- 1124089560
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 1409 (NC)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
10 N Greene St
Rm 2d-168
Baltimore, MD 21201-1524
Phone: (410) 605-7000
Fax: (410) 605-7232
Street-level locationGet directions
Mailing address
10 N Greene St
Baltimore, MD 21201
Registry dates
- Enumerated
- 2006-03-28
- Last updated
- 2007-07-17
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.