Thomas Greig, MD, MPH, MSIST
NPI 1104788017 · Aerospace Medicine Physician · Oakton, VA
Thomas Greig, MD, MPH, MSIST is a Aerospace Medicine Physician provider in Oakton, VA (NPI 1104788017).
Provider details
- NPI number
- 1104788017
- Entity type
- Individual
- Primary specialty
- Aerospace Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH, MSIST
- Sex
- Male
- Sole proprietor
- Yes
- License
- 037222 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
Under 1 yr in 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
- 2025-11-29
- Last updated
- 2025-11-29
- Certified
- 2025-11-29
Frequently asked questions
- What is Thomas Greig's NPI number?
- Thomas Greig's National Provider Identifier (NPI) is 1104788017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Greig's specialty?
- Thomas Greig is listed in the NPPES registry with a primary specialty of Aerospace Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Greig located?
- Thomas Greig's practice location on file with NPPES is 11711 Lariat Ln, Oakton, VA 22124-2323.
- What is Thomas Greig's phone number?
- The practice phone number listed in the NPPES registry for Thomas Greig is (571) 265-9340.
- Is Thomas Greig's NPI active?
- Yes — Thomas Greig's NPI (1104788017) is active in the NPPES registry as of the last update on 2025-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.