Robert Sileo, M.D.
NPI 1629040001 · Internal Medicine Physician · Vienna, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Sileo, M.D. is a Internal Medicine Physician provider in Vienna, VA (NPI 1629040001).
Provider details
- NPI number
- 1629040001
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101029056 (VA)
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
- 2006-02-01
- Last updated
- 2011-03-17
Frequently asked questions
- What is Robert Sileo's NPI number?
- Robert Sileo's National Provider Identifier (NPI) is 1629040001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Sileo's specialty?
- Robert Sileo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Sileo located?
- Robert Sileo's practice location on file with NPPES is 201 Park St Se, Vienna, VA 22180-4644.
- What is Robert Sileo's phone number?
- The practice phone number listed in the NPPES registry for Robert Sileo is (703) 938-7100.
- Does Robert Sileo accept Medicare?
- Robert Sileo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Sileo's NPI active?
- Yes — Robert Sileo's NPI (1629040001) is active in the NPPES registry as of the last update on 2011-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.