What is John Mcmahon's specialty?

John Mcmahon (NPI 1821258062) is a Medicare-billing provider whose primary specialty is Sports Medicine in Portsmouth, NH.

Where does John Mcmahon practice?

John Mcmahon practices in Portsmouth, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1821258062.

How much does Medicare pay John Mcmahon?

John Mcmahon (NPI 1821258062) received approximately $180K in total Medicare Part B payments, serving 632 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1821258062

John McmahonDO

Sports MedicinePortsmouth, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,725

Unique beneficiaries

—

Total services

46,268

Distinct HCPCS

Medicare payment

$177K

Peer benchmark

Total Medicare services vs. 9 Sports Medicine providers in NH — top quintile (cohort median 2,304).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$72

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Prednisone20 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where John Mcmahon'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
YORK HOSPITAL	113	581
Akhilesh Sastry Orthopedic Surgery · Portsmouth, NH	30	44
Archie Mcgowan Diagnostic Radiology · Portland, ME	15	28
Cameron Eilts Podiatry · Portsmouth, NH	14	27
RHODES, DOUGLAS	11	24

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events