What is John Walker's specialty?

John Walker (NPI 1720184435) is a Medicare-billing provider whose primary specialty is Physical Therapist in Private Practice in Princeton, NJ.

Where does John Walker practice?

John Walker practices in Princeton, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1720184435.

How much does Medicare pay John Walker?

John Walker (NPI 1720184435) received approximately $113K in total Medicare Part B payments, serving 104 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1720184435

John WalkerPT

PRACTICEORTHONJ LLCSee all providers at this practice →

Physical Therapist in Private PracticePrinceton, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

280

Unique beneficiaries

—

Total services

5,779

Distinct HCPCS

Medicare payment

$113K

Peer benchmark

Total Medicare services vs. 4,019 Physical Therapist in Private Practice providers in NJ — top quintile (cohort median 2,411).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where John Walker'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Rahul Nayak Physical Therapist in Private Practice · Hillsborough, NJ	15	96
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	12	69
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	12	46

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