Thomas Herndon
NPI 1821355199 · Hospitalist Physician · Bethesda, MD
Thomas Herndon is a Hospitalist Physician provider in Bethesda, MD (NPI 1821355199).
Provider details
- NPI number
- 1821355199
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- D54030 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
- 2012-04-11
- Last updated
- 2017-07-21
Frequently asked questions
- What is Thomas Herndon's NPI number?
- Thomas Herndon's National Provider Identifier (NPI) is 1821355199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Herndon's specialty?
- Thomas Herndon is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Herndon located?
- Thomas Herndon's practice location on file with NPPES is 8600 Old Georgetown Rd, Bethesda, MD 20814-1422.
- What is Thomas Herndon's phone number?
- The practice phone number listed in the NPPES registry for Thomas Herndon is (301) 896-3100.
- Is Thomas Herndon's NPI active?
- Yes — Thomas Herndon's NPI (1821355199) is active in the NPPES registry as of the last update on 2017-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.