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John Wissinger, MD
NPI 1558326876 · Internal Medicine Physician · El Campo, TX
John Wissinger, MD is a Internal Medicine Physician provider in El Campo, TX (NPI 1558326876).
Provider details
- NPI number
- 1558326876
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G3918 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
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
1602 N Mechanic St
El Campo, TX 77437-2640
Phone: (979) 543-2956
Fax: (979) 543-6756
Street-level locationGet directions
Mailing address
2100 Regional Medical Dr
Wharton, TX 77488-9719
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2012-12-05
Frequently asked questions
- What is John Wissinger's NPI number?
- John Wissinger's National Provider Identifier (NPI) is 1558326876, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Wissinger's specialty?
- John Wissinger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Wissinger located?
- John Wissinger's practice location on file with NPPES is 1602 N Mechanic St, El Campo, TX 77437-2640.
- What is John Wissinger's phone number?
- The practice phone number listed in the NPPES registry for John Wissinger is (979) 543-2956.
- Is John Wissinger's NPI active?
- Yes — John Wissinger's NPI (1558326876) is active in the NPPES registry as of the last update on 2012-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.