Donald Riordan
NPI 1043792401 · Occupational Therapy Assistant · Baltimore, MD
Donald Riordan is a Occupational Therapy Assistant provider in Baltimore, MD (NPI 1043792401).
Provider details
- NPI number
- 1043792401
- Entity type
- Individual
- Primary specialty
- Occupational Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-09-02
- Last updated
- 2018-09-02
Frequently asked questions
- What is Donald Riordan's NPI number?
- Donald Riordan's National Provider Identifier (NPI) is 1043792401, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Riordan's specialty?
- Donald Riordan is listed in the NPPES registry with a primary specialty of Occupational Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Donald Riordan located?
- Donald Riordan's practice location on file with NPPES is 3320 Benson Ave, Baltimore, MD 21227.
- What is Donald Riordan's phone number?
- The practice phone number listed in the NPPES registry for Donald Riordan is (410) 644-7100.
- Is Donald Riordan's NPI active?
- Yes — Donald Riordan's NPI (1043792401) is active in the NPPES registry as of the last update on 2018-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.