Valerie Nelson-Mason, MD
NPI 1316986508 · Obstetrics & Gynecology Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Valerie Nelson-Mason, MD is a Obstetrics & Gynecology Physician provider in Saint Charles, MO (NPI 1316986508).
Provider details
- NPI number
- 1316986508
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2005000368 (MO)
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
- 2006-06-05
- Last updated
- 2014-10-09
Frequently asked questions
- What is Valerie Nelson-Mason's NPI number?
- Valerie Nelson-Mason's National Provider Identifier (NPI) is 1316986508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Valerie Nelson-Mason's specialty?
- Valerie Nelson-Mason is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Valerie Nelson-Mason located?
- Valerie Nelson-Mason's practice location on file with NPPES is 330 1st Capitol Dr, Saint Charles, MO 63301-2835.
- What is Valerie Nelson-Mason's phone number?
- The practice phone number listed in the NPPES registry for Valerie Nelson-Mason is (636) 255-3003.
- Does Valerie Nelson-Mason accept Medicare?
- Valerie Nelson-Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Valerie Nelson-Mason's NPI active?
- Yes — Valerie Nelson-Mason's NPI (1316986508) is active in the NPPES registry as of the last update on 2014-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.