OrganizationActive
Donald W Blocker DO
NPI 1609078229 · Eyewear Supplier · Portland, TN
Donald W Blocker DO is a Eyewear Supplier organization in Portland, TN (NPI 1609078229).
Provider details
- NPI number
- 1609078229
- Entity type
- Organization
- Primary specialty
- Eyewear SupplierSuppliers
- Parent organization
- Donald W Blocker OD
- Organization subpart
- Yes
- Authorized official
- Donald Blocker, Owner Optometrist(615) 325-2020
Specialties & taxonomies
Suppliers
Profile Score
Detailed profile(89/100 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
605 S Broadway
Portland, TN 37148-1619
Phone: (615) 325-2020
Fax: (615) 325-5862
Street-level locationGet directions
Mailing address
Po Box 470
Portland, TN 37148-0470
Other names (DBA / former)
- Doing business as
- Portland Vision Clinic
Registry dates
- Enumerated
- 2007-06-05
- Last updated
- 2014-10-24
Frequently asked questions
- What is Donald W Blocker DO's NPI number?
- Donald W Blocker DO's National Provider Identifier (NPI) is 1609078229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Donald W Blocker DO?
- Donald W Blocker DO is classified in the NPPES registry as Eyewear Supplier (Suppliers).
- Where is Donald W Blocker DO located?
- Donald W Blocker DO's practice location on file with NPPES is 605 S Broadway, Portland, TN 37148-1619.
- What is Donald W Blocker DO's phone number?
- The practice phone number listed in the NPPES registry for Donald W Blocker DO is (615) 325-2020.
- Who is the authorized official for Donald W Blocker DO?
- The authorized official listed on Donald W Blocker DO's NPPES record is Donald Blocker, Owner Optometrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Donald W Blocker DO's NPI active?
- Yes — Donald W Blocker DO's NPI (1609078229) is active in the NPPES registry as of the last update on 2014-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.