PROVIDER PROFILE · NPI 1619066859

Thomas O'connorMD

PRACTICEREGENTS OF THE UNIVERSITY OF MICHIGANSee all providers at this practice →

Internal MedicineAnn Arbor, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

123

Unique beneficiaries

—

Total services

137

Distinct HCPCS

Medicare payment

$9K

Peer benchmark

Total Medicare services vs. 3,459 Internal Medicine providers in MI — bottom quintile (cohort median 549).

PRESCRIBING · PART D · 2024

Total Rx claims

1,205

Beneficiaries

—

Total drug cost

$85K

Distinct drugs

Brand share

10.1%

Top prescribed drugs

Atorvastatin Calcium204 claims

Amlodipine Besylate117 claims

Lisinopril86 claims

Losartan Potassium77 claims

Levothyroxine Sodium76 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Thomas O'connor's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 15 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	648	6,233
REGENTS OF THE UNIVERSITY OF MICHIGAN	515	2,155
Carly Marquis Henson Nurse Practitioner · Concord, NH	101	142
TERRELL, LINDA	22	50
William Armstrong Cardiology · Ann Arbor, MI	15	84
Lizabeth Binns Physician Assistant · Brighton, MI	15	70
Charisse Gencyuz Internal Medicine · Ann Arbor, MI	14	32
Stephanie Clark Internal Medicine · Ann Arbor, MI	13	65
Aine Kelly Diagnostic Radiology · Ann Arbor, MI	13	34
Jadranka Stojanovska Diagnostic Radiology · New York, NY	12	29
Mohamed Sayyouh Diagnostic Radiology · Ann Arbor, MI	12	27
FESSELL, DAVID	12	51

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history