Marcia Corson, CNM
NPI 1992217913 · Advanced Practice Midwife · Waterloo, IA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcia Corson, CNM is a Advanced Practice Midwife provider in Waterloo, IA (NPI 1992217913).
Provider details
- NPI number
- 1992217913
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- B093700 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-10-31
- Last updated
- 2017-10-31
Frequently asked questions
- What is Marcia Corson's NPI number?
- Marcia Corson's National Provider Identifier (NPI) is 1992217913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcia Corson's specialty?
- Marcia Corson is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcia Corson located?
- Marcia Corson's practice location on file with NPPES is 212 W Dale St Ste 402, Waterloo, IA 50703-1954.
- What is Marcia Corson's phone number?
- The practice phone number listed in the NPPES registry for Marcia Corson is (319) 235-3865.
- Does Marcia Corson accept Medicare?
- Marcia Corson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcia Corson's NPI active?
- Yes — Marcia Corson's NPI (1992217913) is active in the NPPES registry as of the last update on 2017-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.