PROVIDER PROFILE · NPI 1811910581

Christine CallahanMD

PRACTICETHE MILTON S HERSHEY MEDICAL CENTERSee all providers at this practice →

OphthalmologyHershey, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

982

Unique beneficiaries

—

Total services

1,084

Distinct HCPCS

Medicare payment

$38K

Peer benchmark

Total Medicare services vs. 810 Ophthalmology providers in PA — below median (cohort median 1,854).

PRESCRIBING · PART D · 2024

Total Rx claims

2,288

Beneficiaries

—

Total drug cost

$198K

Distinct drugs

Brand share

35.0%

Top prescribed drugs

Latanoprost609 claims

Dorzolamide Hcl/Timolol Maleat317 claims

Timolol Maleate252 claims

Prednisolone Acetate192 claims

Brimonidine Tartrate121 claims

QUALITY · MIPS · 2024

Final MIPS score

79.4

Quality

56.7

Cost

74.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.18%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$5K

Payment records

By payment type

Debt forgiveness$5K

REFERRAL NETWORK

Where Christine 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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UPMC PINNACLE HOSPITALS	27	99
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	22	57
THE GOOD SAMARITAN HOSPITAL OF LEBANON, PENNSYLVANIA	22	105
LANCASTER GENERAL HOSPITAL	19	100
Donald Martin Anesthesiology · Hershey, PA	14	57
Ingrid Scott Ophthalmology · Hershey, PA	13	52
Seth Pantanelli Ophthalmology · Hershey, PA	13	44
Cathy Paige Anesthesiology · Hershey, PA	13	56

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