Marsha Mason, M.D.
NPI 1831205129 · Specialist · Manassas, VA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Mason, M.D. is a Specialist provider in Manassas, VA (NPI 1831205129).
Provider details
- NPI number
- 1831205129
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 0101031466 (VA)
Specialties & taxonomies
Other Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marsha Mason's NPI number?
- Marsha Mason's National Provider Identifier (NPI) is 1831205129, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Mason's specialty?
- Marsha Mason is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Marsha Mason located?
- Marsha Mason's practice location on file with NPPES is 9384 Forestwood Ln, Manassas, VA 20110-4747.
- What is Marsha Mason's phone number?
- The practice phone number listed in the NPPES registry for Marsha Mason is (703) 369-2999.
- Does Marsha Mason accept Medicare?
- Marsha Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Mason's NPI active?
- Yes — Marsha Mason's NPI (1831205129) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.