What is Hanna Shammas's specialty?

Hanna Shammas (NPI 1770698854) is a Medicare-billing provider whose primary specialty is Ophthalmology in Lynwood, CA.

Where does Hanna Shammas practice?

Hanna Shammas practices in Lynwood, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1770698854.

How much does Medicare pay Hanna Shammas?

Hanna Shammas (NPI 1770698854) received approximately $45K in total Medicare Part B payments, serving 256 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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 · 2025

Total received

$11K

Payment records

By payment type

Royalty or License$6K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$4K

Food and Beverage$677

Top paying entities

Royalty or License$6K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$4K

Food and Beverage$677

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events