WILLIAM K RIORDAN (DO) – Diagnostic Radiology Physician, NPI 1447259718

WILLIAM K RIORDAN (DO) is a healthcare provider. based in Petoskey, Michigan. specializing in Diagnostic Radiology Physician. They hold the professional credentials DO. They hold a License No. 5101010779 (MI). The NPI Number for WILLIAM K RIORDAN (DO) is 1447259718

Main info

Male
37 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM K RIORDAN (DO)
NPI
1447259718
Phone
(989) 401-4245
Address
416 CONNABLE AVE
Enumeration Date
19 July 2005
Last Update Date
13 August 2018

Doctor Profile

Medical School Name
MICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Secondary Phone
2316271257
Graduation Year
1989 (37 years ago)
PAC ID
1355307828
Group Practice PAC ID
2466418934
Professional Enrollment ID
I20101006001147
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for WILLIAM K RIORDAN (DO)

  • McLaren Northern Michigan, 416, Connable Avenue, Petoskey, Emmet County, Michigan, 49770, United States

    PETOSKEY, MI 497702297

    Phone: (989) 401-4245

    Fax: (989) 401-4235

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 49770)

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Provider's Procedures

WILLIAM K RIORDAN (DO) performs procedures in Diagnostic Radiology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
DIAGNOSTIC RADIOLOGYMI71250CT scan chest6766
DIAGNOSTIC RADIOLOGYMI73110X-ray of wrist, minimum of 3 views3531
DIAGNOSTIC RADIOLOGYMI73140X-ray of fingers, minimum of 2 views1413
DIAGNOSTIC RADIOLOGYMI74177CT scan of abdomen and pelvis with contrast232230
DIAGNOSTIC RADIOLOGYMI78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies5757

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 2466418934View full group profile
NameSpecialtyState
WILLIAM E HENRY (MD)
-MI
JENNIFER J. KOTTRA (M.D.)
Radiation Oncology, Diagnostic RadiologyAZ
JANICE M SCHWINKE (MD)
-MI

Reviews

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Frequently asked questions

Is there an official ID for WILLIAM K RIORDAN (DO) in U.S. healthcare records?
The official identifier for WILLIAM K RIORDAN (DO) is NPI 1447259718.
Is WILLIAM K RIORDAN (DO) still an active registrant?
WILLIAM K RIORDAN (DO) carries an active NPI according to the public dataset.
What expertise is attributed to WILLIAM K RIORDAN (DO)?
WILLIAM K RIORDAN (DO)'s specialty line reads Diagnostic Radiology Physician. Clinical services aligned with this taxonomy classification.
Is WILLIAM K RIORDAN (DO) located near Petoskey?
WILLIAM K RIORDAN (DO) currently maps to Petoskey, Michigan in this extract.
When was this NPI issued?
Enumeration for WILLIAM K RIORDAN (DO) is noted as July 19, 2005 where the registry provides it.

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