John Casler, MD
NPI 1730183096 · Otolaryngology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Casler, MD is a Otolaryngology Physician provider in Jacksonville, FL (NPI 1730183096).
Provider details
- NPI number
- 1730183096
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME100360 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 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
- 2005-06-02
- Last updated
- 2024-02-23
- Certified
- 2024-02-23
Frequently asked questions
- What is John Casler's NPI number?
- John Casler's National Provider Identifier (NPI) is 1730183096, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Casler's specialty?
- John Casler is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is John Casler located?
- John Casler's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is John Casler's phone number?
- The practice phone number listed in the NPPES registry for John Casler is (904) 953-2000.
- Does John Casler accept Medicare?
- John Casler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Casler's NPI active?
- Yes — John Casler's NPI (1730183096) is active in the NPPES registry as of the last update on 2024-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.