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Timothy Deffer, MD
NPI 1851478283 · Dermatology Physician · Springfield, MO
Timothy Deffer, MD is a Dermatology Physician provider in Springfield, MO (NPI 1851478283).
Provider details
- NPI number
- 1851478283
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2001013325 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
3231 S National Ave
Springfield, MO 65807-7304
Phone: (417) 885-0803
Fax: (417) 841-0110
Street-level locationGet directions
Mailing address
Po Box 2580
Springfield, MO 65801-2580
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2013-05-03
Frequently asked questions
- What is Timothy Deffer's NPI number?
- Timothy Deffer's National Provider Identifier (NPI) is 1851478283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Deffer's specialty?
- Timothy Deffer is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Deffer located?
- Timothy Deffer's practice location on file with NPPES is 3231 S National Ave, Springfield, MO 65807-7304.
- What is Timothy Deffer's phone number?
- The practice phone number listed in the NPPES registry for Timothy Deffer is (417) 885-0803.
- Is Timothy Deffer's NPI active?
- Yes — Timothy Deffer's NPI (1851478283) is active in the NPPES registry as of the last update on 2013-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.