PROVIDER PROFILE · NPI 1770698854

Hanna ShammasM.D.

PRACTICEH SHAMMAS MD INCSee all providers at this practice →

OphthalmologyLynwood, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

480

Unique beneficiaries

—

Total services

568

Distinct HCPCS

Medicare payment

$41K

Peer benchmark

Total Medicare services vs. 2,144 Ophthalmology providers in CA — below median (cohort median 1,859).

PRESCRIBING · PART D · 2024

Total Rx claims

1,942

Beneficiaries

—

Total drug cost

$108K

Distinct drugs

Brand share

28.7%

Top prescribed drugs

Latanoprost1,050 claims

Dorzolamide Hcl/Timolol Maleat343 claims

Brimonidine Tartrate105 claims

Timolol Maleate94 claims

Bimatoprost55 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$8K

Payment records

By payment type

Royalty or License$7K

Food and Beverage$732

Travel and Lodging$14

Top paying entities

Royalty or License$7K

Food and Beverage$732

Travel and Lodging$14

REFERRAL NETWORK

Where Hanna Shammas'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	62	119
Bill Matheis Certified Registered Nurse Anesthetist (CRNA) · Corona, CA	24	36
ST.FRANCIS MEDICAL CENTER	20	26
PIH HEALTH DOWNEY HOSPITAL	12	15

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