Calvin Nazario, O.D.
NPI 1538388343 · Optometrist · Deltona, FL
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Nazario, O.D. is a Optometrist provider in Deltona, FL (NPI 1538388343).
Provider details
- NPI number
- 1538388343
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- OPC003977 (FL)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-04-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Calvin Nazario's NPI number?
- Calvin Nazario's National Provider Identifier (NPI) is 1538388343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Nazario's specialty?
- Calvin Nazario is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Calvin Nazario located?
- Calvin Nazario's practice location on file with NPPES is 101 Howland Blvd, Deltona, FL 32738-9200.
- What is Calvin Nazario's phone number?
- The practice phone number listed in the NPPES registry for Calvin Nazario is (407) 324-3633.
- Does Calvin Nazario accept Medicare?
- Calvin Nazario is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Nazario's NPI active?
- Yes — Calvin Nazario's NPI (1538388343) 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.