What is John Weiter's specialty?

John Weiter (NPI 1992795421) is a Medicare-billing provider whose primary specialty is Ophthalmology in Peabody, MA.

Where does John Weiter practice?

John Weiter practices in Peabody, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1992795421.

How much does Medicare pay John Weiter?

John Weiter (NPI 1992795421) received approximately $92K in total Medicare Part B payments, serving 368 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1992795421

John WeiterMD PHD

PRACTICEJOHN J WEITER, MD, PCSee all providers at this practice →

OphthalmologyPeabody, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

855

Unique beneficiaries

—

Total services

1,523

Distinct HCPCS

Medicare payment

$84K

Peer benchmark

Total Medicare services vs. 558 Ophthalmology providers in MA — below median (cohort median 1,976).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$518

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Latanoprost51 claims

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 Weiter'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	93	150
MILFORD REGIONAL MEDICAL CENTER INC	75	203
CAPE COD HOSPITAL INC	50	123
Robert Kellan Ophthalmology · Methuen, MA	46	49
STEWARD HOLY FAMILY HOSPITAL, INC.	44	60
THE GENERAL HOSPITAL CORPORATION	31	46
Steven Nielsen Ophthalmology · Quincy, MA	27	37
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	22	27
FALMOUTH HOSPITAL ASSOCIATION INC	17	40
Helen Moreira Ophthalmology · Quincy, MA	16	24
SOUTH SHORE HOSPITAL INC.	13	25
Harbor Medical Associates, Inc. Clinical Laboratory · South Weymouth, MA	12	27

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