IndividualActive
John Terwilleger, M.D.
NPI 1164468351 · Pediatrics Physician · Deltona, FL
John Terwilleger, M.D. is a Pediatrics Physician provider in Deltona, FL (NPI 1164468351).
Provider details
- NPI number
- 1164468351
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME0045959 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(95/100 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
2 documented practice locations
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
1565 Saxon Blvd Ste 202
Deltona, FL 32725-5836
Phone: (386) 851-0644
Fax: (386) 851-0664
Street-level locationGet directions
Mailing address
1565 Saxon Blvd Ste 202
Deltona, FL 32725-5836
Additional practice locations (1)
- 775 Harley Strickland BlvdSuite 101Orange City, FL 32763-7963Phone: (386) 851-0644Fax: (386) 851-0664
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2021-06-28
- Certified
- 2021-06-28
Frequently asked questions
- What is John Terwilleger's NPI number?
- John Terwilleger's National Provider Identifier (NPI) is 1164468351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Terwilleger's specialty?
- John Terwilleger is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Terwilleger located?
- John Terwilleger's practice location on file with NPPES is 1565 Saxon Blvd Ste 202, Deltona, FL 32725-5836.
- What is John Terwilleger's phone number?
- The practice phone number listed in the NPPES registry for John Terwilleger is (386) 851-0644.
- Is John Terwilleger's NPI active?
- Yes — John Terwilleger's NPI (1164468351) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.