PROVIDER PROFILE · NPI 1952338048

John CallahanMD

Orthopedic SurgeryAmherst, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

425

Unique beneficiaries

—

Total services

736

Distinct HCPCS

Medicare payment

$33K

Peer benchmark

Total Medicare services vs. 1,320 Orthopedic Surgery providers in NY — above median (cohort median 1,129).

PRESCRIBING · PART D · 2024

Total Rx claims

123

Beneficiaries

—

Total drug cost

$653

Distinct drugs

Brand share

69.9%

Top prescribed drugs

Hydrocodone/Acetaminophen75 claims

Cephalexin22 claims

Methylprednisolone15 claims

Sulfamethoxazole/Trimethoprim11 claims

QUALITY · MIPS · 2024

Final MIPS score

89.8

Quality

89.9

Cost

82.5

Improvement activities

40.0

Promoting interop.

88.0

Payment adjustment

0.62%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$190

Payment records

By payment type

Food and Beverage$190

REFERRAL NETWORK

Where John Callahan'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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ERIE COUNTY MEDICAL CENTER CORPORATION	66	311
MERCY HOSPITAL OF BUFFALO	34	101
Lasalle Ambulance Inc Ambulance Service Provider · Buffalo, NY	18	72
Nicolette Sciolino Physician Assistant · Amherst, NY	14	23
MILLER, S. DAVID	13	15
TIRONE, CHARLES	12	31
Jai Wadhwani Cardiology · Williamsville, NY	11	53

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