Doctor profile · Federal record

Dr. Michael Riordan, PA-C

Physician Assistant · Pittsfield, MA

  • NPI 1629774195
  • Accepts Medicare
  • 4 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
725 North St
Pittsfield, MA 012014109
(413) 447-2000

Credentials & registration

NPPES · NUCC
NPI registered
February 2023 — 3 yrs on file
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629774195. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
137
Distinct HCPCS
2
Medicare allowed
$16,736
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 80 78 $103
99285 Emergency department visit with high level of medical decision making 57 57 $149

In context: peer comparison

Among 16 peers in Pittsfield Physician Assistant, average services per provider: 96. This provider delivers 1.4× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Riordan's medical specialty?
Dr. Michael Riordan practices Physician Assistant in Pittsfield, MA.
Where does Dr. Michael Riordan practice?
Dr. Michael Riordan practices at 725 North St, Pittsfield, MA 012014109. Office phone: 4134472000.
What is Dr. Michael Riordan's NPI?
Dr. Michael Riordan's National Provider Identifier (NPI) is 1629774195, issued by NPPES.
Does Dr. Michael Riordan accept Medicare assignment?
Yes. Dr. Michael Riordan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Riordan commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285). Source: CMS Medicare Physician & Other Practitioners file.