Mary Alice Decoursey, CNM
NPI 1952439507 · Advanced Practice Midwife · Williamsport, PA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Alice Decoursey, CNM is a Advanced Practice Midwife provider in Williamsport, PA (NPI 1952439507).
Provider details
- NPI number
- 1952439507
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- AP04898 (LA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing 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
- 2007-03-02
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is Mary Alice Decoursey's NPI number?
- Mary Alice Decoursey's National Provider Identifier (NPI) is 1952439507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Alice Decoursey's specialty?
- Mary Alice Decoursey is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Alice Decoursey located?
- Mary Alice Decoursey's practice location on file with NPPES is 740 High St Ste 1004, Williamsport, PA 17701-3102.
- What is Mary Alice Decoursey's phone number?
- The practice phone number listed in the NPPES registry for Mary Alice Decoursey is (570) 321-3300.
- Does Mary Alice Decoursey accept Medicare?
- Mary Alice Decoursey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Alice Decoursey's NPI active?
- Yes — Mary Alice Decoursey's NPI (1952439507) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.