PROVIDER PROFILE · NPI 1558374090

David HartzokO.D.

OptometryChambersburg, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

941

Unique beneficiaries

—

Total services

1,130

Distinct HCPCS

Medicare payment

$52K

Peer benchmark

Total Medicare services vs. 1,495 Optometry providers in PA — top quintile (cohort median 322).

PRESCRIBING · PART D · 2024

Total Rx claims

266

Beneficiaries

—

Total drug cost

$8K

Distinct drugs

Brand share

19.5%

Top prescribed drugs

Timolol Maleate108 claims

Latanoprost106 claims

Dorzolamide Hcl/Timolol Maleat37 claims

Brimonidine Tartrate/Timolol15 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where David Hartzok'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
V. Eugene Kilmore, Jr. Ophthalmology · Mechanicsburg, PA	20	58
HOLDAWAY, DIANE	16	33
Michael Husar Podiatry · Chambersburg, PA	15	25
Stephen Thuahnai Diagnostic Radiology · Chambersburg, PA	14	18
Betsie Figueroa-Cruz Cardiology · Chambersburg, PA	13	26

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