John Underwood, M.D.
NPI 1619937802 · Internal Medicine Physician · Shreveport, LA
John Underwood, M.D. is a Internal Medicine Physician provider in Shreveport, LA (NPI 1619937802).
Provider details
- NPI number
- 1619937802
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L03841 (LA)
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
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
Mailing address
Registry dates
- Enumerated
- 2006-03-23
- Last updated
- 2023-03-07
Frequently asked questions
- What is John Underwood's NPI number?
- John Underwood's National Provider Identifier (NPI) is 1619937802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Underwood's specialty?
- John Underwood is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Underwood located?
- John Underwood's practice location on file with NPPES is 9091 Ellerbe Rd, Shreveport, LA 71106-6738.
- What is John Underwood's phone number?
- The practice phone number listed in the NPPES registry for John Underwood is (318) 681-1630.
- Is John Underwood's NPI active?
- Yes — John Underwood's NPI (1619937802) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.