What is Mark Hamer's specialty?

Mark Hamer (NPI 1235107152) is a Medicare-billing provider whose primary specialty is Clinical Cardiac Electrophysiology in Rochester, NY.

Where does Mark Hamer practice?

Mark Hamer practices in Rochester, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1235107152.

How much does Medicare pay Mark Hamer?

Mark Hamer (NPI 1235107152) received approximately $42K in total Medicare Part B payments, serving 408 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235107152

Mark HamerM.D.

Clinical Cardiac ElectrophysiologyRochester, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

587

Unique beneficiaries

—

Total services

1,056

Distinct HCPCS

Medicare payment

$38K

Peer benchmark

Total Medicare services vs. 167 Clinical Cardiac Electrophysiology providers in NY — below median (cohort median 2,973).

PRESCRIBING · PART D · 2024

Total Rx claims

1,227

Beneficiaries

—

Total drug cost

$328K

Distinct drugs

Brand share

24.5%

Top prescribed drugs

Metoprolol Succinate133 claims

Apixaban130 claims

Atorvastatin Calcium104 claims

Losartan Potassium70 claims

Amlodipine Besylate68 claims

QUALITY · MIPS · 2024

Final MIPS score

90.9

Quality

69.2

Cost

80.4

Improvement activities

40.0

Promoting interop.

98.0

Payment adjustment

0.67%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$16

Payment records

By payment type

Food and Beverage$16

Top paying entities

Food and Beverage$16

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 330151

Hospital

CCN 330285

Hospital

REFERRAL NETWORK

Where Mark Hamer'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). 29 inbound referrers · 75 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ROCHESTER GENERAL HOSPITAL	341	1,648
UNIVERSITY OF ROCHESTER	63	228
ST JAMES HOSPITAL	58	180
ACM MEDICAL LABORATORY INC	49	210
Vijay Krishnamoorthy Cardiology · Rochester, NY	42	107
Thomas Curran Cardiology · Rochester, NY	38	78
National Ambulance & Oxygen Service, Inc. Ambulance Service Provider · Rochester, NY	37	73
Seth Jacobson Cardiology · Rochester, NY	37	81
Thomas Stuver Cardiology · Rochester, NY	36	146
Edward Zinkin Diagnostic Radiology · Rochester, NY	36	64
Krishna Rao Cardiology · Rochester, NY	33	97
Meghan Single Diagnostic Radiology · Rochester, NY	29	57

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ROCHESTER GENERAL HOSPITAL	610	3,054
Pina Spampanato Physician Assistant · Rochester, NY	90	144
UNIVERSITY OF ROCHESTER	87	234
ST JAMES HOSPITAL	52	161
NPI 1467687145	51	165
Krishna Rao Cardiology · Rochester, NY	48	144
ACM MEDICAL LABORATORY INC	47	253
Thomas Curran Cardiology · Rochester, NY	46	140
Kevin Mcgrody Cardiology · Rochester, NY	46	92
Roy Wiener Cardiology · Rochester, NY	44	88
Eduardo Arazoza Cardiology · Rochester, NY	44	128
GENESEE REGION HOME CARE ASSOCIATION INC.	42	62

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events