Doctor profile · Federal record

Dr. Kathleen Riordan

Acute Care Nurse Practitioner (CMS: Nurse Practitioner) · Milton, MA

  • NPI 1639555345
  • Accepts Medicare
  • 11 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3 Waldo RD
Milton, MA 021861723
(617) 480-0834

Credentials & registration

NPPES · NUCC
NPI registered
August 2015 — 11 yrs on file
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363LA2100X — NUCC code
State license (1)
Massachusetts #RN2292187

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639555345. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
18
Distinct HCPCS
1
Medicare allowed
$1,286
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 18 15 $71

In context: peer comparison

Among 1 peers in this city , average services per provider: 18. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
99
Patients
67
Total drug cost
$16,032
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 33 15 $626
Clopidogrel (Clopidogrel Bisulfate) Brand 30 24 $630
Xarelto (Rivaroxaban) Brand 21 15 $14,703
Oxycodone Hcl Generic 15 13 $74

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathleen Riordan's medical specialty?
Dr. Kathleen Riordan practices Acute Care Nurse Practitioner in Milton, MA.
Where does Dr. Kathleen Riordan practice?
Dr. Kathleen Riordan practices at 3 Waldo RD, Milton, MA 021861723. Office phone: 6174800834.
What is Dr. Kathleen Riordan's NPI?
Dr. Kathleen Riordan's National Provider Identifier (NPI) is 1639555345, issued by NPPES.
Does Dr. Kathleen Riordan accept Medicare assignment?
Yes. Dr. Kathleen Riordan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathleen Riordan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.