Kathleen Riordan
NPI 1639555345 · Acute Care Nurse Practitioner · Milton, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Riordan is a Acute Care Nurse Practitioner provider in Milton, MA (NPI 1639555345).
Provider details
- NPI number
- 1639555345
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN2292187 (MA)
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
10 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 60 | 33 |
| Apixabanbrand: Eliquis | 43 | 15 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 40 | 29 |
| Oxycodone Hcl | 40 | 36 |
| Rivaroxabanbrand: Xarelto | 30 | 13 |
| Gabapentin | 16 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-08-04
- Last updated
- 2015-08-04
Frequently asked questions
- What is Kathleen Riordan's NPI number?
- Kathleen Riordan's National Provider Identifier (NPI) is 1639555345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Riordan's specialty?
- Kathleen Riordan is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kathleen Riordan located?
- Kathleen Riordan's practice location on file with NPPES is 3 Waldo Rd, Milton, MA 02186-1723.
- What is Kathleen Riordan's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Riordan is (617) 480-0834.
- Does Kathleen Riordan accept Medicare?
- Kathleen Riordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Riordan's NPI active?
- Yes — Kathleen Riordan's NPI (1639555345) is active in the NPPES registry as of the last update on 2015-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.