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Charles Underwood, MD
NPI 1629131586 · Family Medicine Physician · Naples, FL
Charles Underwood, MD is a Family Medicine Physician provider in Naples, FL (NPI 1629131586).
Provider details
- NPI number
- 1629131586
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME38081 (FL)
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
400 8th St N
Naples, FL 34102-5519
Phone: (239) 595-6687
Street-level locationGet directions
Mailing address
400 8th St N
Naples, FL 34102-5519
Registry dates
- Enumerated
- 2006-12-19
- Last updated
- 2014-05-14
Frequently asked questions
- What is Charles Underwood's NPI number?
- Charles Underwood's National Provider Identifier (NPI) is 1629131586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Underwood's specialty?
- Charles Underwood is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Underwood located?
- Charles Underwood's practice location on file with NPPES is 400 8th St N, Naples, FL 34102-5519.
- What is Charles Underwood's phone number?
- The practice phone number listed in the NPPES registry for Charles Underwood is (239) 595-6687.
- Is Charles Underwood's NPI active?
- Yes — Charles Underwood's NPI (1629131586) is active in the NPPES registry as of the last update on 2014-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.