John Roser, D.O.
NPI 1730170853 · Family Medicine Physician · Fairfax, VA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Roser, D.O. is a Family Medicine Physician provider in Fairfax, VA (NPI 1730170853).
Provider details
- NPI number
- 1730170853
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 0102201281 (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
- 2005-10-31
- Last updated
- 2022-04-14
- Certified
- 2022-04-14
Frequently asked questions
- What is John Roser's NPI number?
- John Roser's National Provider Identifier (NPI) is 1730170853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Roser's specialty?
- John Roser is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Roser located?
- John Roser's practice location on file with NPPES is 4375 Fair Lakes Ct, Fairfax, VA 22033-4234.
- What is John Roser's phone number?
- The practice phone number listed in the NPPES registry for John Roser is (571) 432-2600.
- Does John Roser accept Medicare?
- John Roser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Roser's NPI active?
- Yes — John Roser's NPI (1730170853) is active in the NPPES registry as of the last update on 2022-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.