William Diehl, OD
NPI 1578668125 · Optometrist · Enid, OK
William Diehl, OD is a Optometrist provider in Enid, OK (NPI 1578668125).
Provider details
- NPI number
- 1578668125
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 802 (OK)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Eye and Vision Services Providers
Eye and Vision Services Providers
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
- 2006-09-14
- Last updated
- 2011-11-09
Frequently asked questions
- What is William Diehl's NPI number?
- William Diehl's National Provider Identifier (NPI) is 1578668125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Diehl's specialty?
- William Diehl is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is William Diehl located?
- William Diehl's practice location on file with NPPES is 502 W Owen K Garriott Rd, Enid, OK 73701-5523.
- What is William Diehl's phone number?
- The practice phone number listed in the NPPES registry for William Diehl is (580) 233-3599.
- Is William Diehl's NPI active?
- Yes — William Diehl's NPI (1578668125) is active in the NPPES registry as of the last update on 2011-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.