Janet Riordan, CNM
NPI 1730273020 · Advanced Practice Midwife · Damascus, MD
Janet Riordan, CNM is a Advanced Practice Midwife provider in Damascus, MD (NPI 1730273020).
Provider details
- NPI number
- 1730273020
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- R077676 (MD)
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 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
- 2006-10-03
- Last updated
- 2016-01-21
Frequently asked questions
- What is Janet Riordan's NPI number?
- Janet Riordan's National Provider Identifier (NPI) is 1730273020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Riordan's specialty?
- Janet Riordan is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Janet Riordan located?
- Janet Riordan's practice location on file with NPPES is 26005 Ridge Rd, Damascus, MD 20872-1892.
- What is Janet Riordan's phone number?
- The practice phone number listed in the NPPES registry for Janet Riordan is (301) 414-2305.
- Is Janet Riordan's NPI active?
- Yes — Janet Riordan's NPI (1730273020) is active in the NPPES registry as of the last update on 2016-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.