PROVIDER PROFILE · NPI 1033108329

John HamersmaM.D.

Family PracticeWyoming, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

609

Unique beneficiaries

—

Total services

831

Distinct HCPCS

Medicare payment

$37K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

8,356

Beneficiaries

—

Total drug cost

$923K

Distinct drugs

124

Brand share

21.1%

Top prescribed drugs

Atorvastatin Calcium627 claims

Levothyroxine Sodium529 claims

Lisinopril424 claims

Amlodipine Besylate339 claims

Rosuvastatin Calcium322 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$40

Payment records

By payment type

Food and Beverage$40

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (6)

Home health agency

Hospital

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where John Hamersma'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). 1 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
GRAND VALLEY MEDICAL SPECIALISTS PLC	86	608

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
REGENTS OF THE UNIVERSITY OF MICHIGAN	90	662
GRAND VALLEY MEDICAL SPECIALISTS PLC	87	639
SPECTRUM HEALTH HOSPITALS	87	838
METROPOLITAN HOSPITAL	44	376
SAINT MARY'S HEALTH SERVICES	14	86

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