What is Mark O'brien's specialty?

Mark O'brien (NPI 1255322509) is a Medicare-billing provider whose primary specialty is Family Practice in Saint Clair, MI.

Where does Mark O'brien practice?

Mark O'brien practices in Saint Clair, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1255322509.

How much does Medicare pay Mark O'brien?

Mark O'brien (NPI 1255322509) received approximately $18K in total Medicare Part B payments, serving 111 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1255322509

Mark O'brienD.O.

PRACTICEDISTINCTIVE EYEWEAR, INC.See all providers at this practice →

Family PracticeSaint Clair, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

250

Unique beneficiaries

—

Total services

388

Distinct HCPCS

Medicare payment

$15K

Peer benchmark

Total Medicare services vs. 3,054 Family Practice providers in MI — above median (cohort median 403).

PRESCRIBING · PART D · 2024

Total Rx claims

3,474

Beneficiaries

—

Total drug cost

$150K

Distinct drugs

Brand share

22.0%

Top prescribed drugs

Atorvastatin Calcium209 claims

Hydrocodone/Acetaminophen190 claims

Levothyroxine Sodium188 claims

Alprazolam109 claims

Amlodipine Besylate103 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 Mark O'brien'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). 4 inbound referrers · 16 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Edward Mauch Diagnostic Radiology · Detroit, MI	26	86
ASCENSION ST JOHN HOSPITAL	11	31
David Hindy Family Practice · Algonac, MI	11	39
Thaddeus Gasowski Emergency Medicine · Fraser, MI	11	40

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ASCENSION RIVER DISTRICT HOSPITAL	165	910
CALDERON, HERMINIO	30	78
Hafeez Ahmed Diagnostic Radiology · Detroit, MI	25	61
CARRION, JOSE	22	68
Daniel Shogren Diagnostic Radiology · Port Huron, MI	19	49
Edward Mauch Diagnostic Radiology · Detroit, MI	18	54
MCLAREN PORT HURON	16	38
Tri Hospital Emergency Medical Services Corporation Ambulance Service Provider · Port Huron, MI	16	63
Leopold Fregoli Diagnostic Radiology · Port Huron, MI	16	51
ST. JOSEPH MERCY PORT HURTON	15	51
Noor Yono Neurology · Stuart, FL	13	69
John Ference Diagnostic Radiology · Port Huron, MI	13	25

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