What is Hassan Alissa's specialty?

Hassan Alissa (NPI 1770522633) is a Medicare-billing provider whose primary specialty is Rheumatology in San Marcos, TX.

Where does Hassan Alissa practice?

Hassan Alissa practices in San Marcos, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1770522633.

How much does Medicare pay Hassan Alissa?

Hassan Alissa (NPI 1770522633) received approximately $156K in total Medicare Part B payments, serving 523 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1770522633

Hassan AlissaMD

RheumatologySan Marcos, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,523

Unique beneficiaries

—

Total services

3,809

Distinct HCPCS

Medicare payment

$131K

Peer benchmark

Total Medicare services vs. 382 Rheumatology providers in TX — above median (cohort median 13,742).

PRESCRIBING · PART D · 2024

Total Rx claims

2,215

Beneficiaries

—

Total drug cost

$1.9M

Distinct drugs

Brand share

21.8%

Top prescribed drugs

Hydroxychloroquine Sulfate381 claims

Prednisone320 claims

Tramadol Hcl126 claims

Leflunomide105 claims

Methotrexate Sodium96 claims

QUALITY · MIPS · 2024

Final MIPS score

74.8

Quality

66.0

Cost

57.5

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-0.03%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$652

Payment records

By payment type

Food and Beverage$592

Education$60

Top paying entities

Food and Beverage$592

Education$60

REFERRAL NETWORK

Where Hassan Alissa'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). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	294	1,337
CHRISTUS SANTA ROSA HEALTH CARE CORPORATION	65	151
Stephen Swearingen Diagnostic Radiology · San Marcos, TX	55	94
Douglas Smith Diagnostic Radiology · San Marcos, TX	40	69
Cameron Gates Diagnostic Radiology · Chattanooga, TN	40	74
ASCENSION SETON	39	170
Jonathan Welch Ophthalmology · San Marcos, TX	20	40
Song Hong Critical Care (Intensivists) · Longview, TX	19	72
John Hogg Diagnostic Radiology · San Antonio, TX	18	45
Rajesh Shetty Internal Medicine · Kyle, TX	18	67
Gladys Weng Internal Medicine · San Marcos, TX	16	39
Jason Carroll Interventional Pain Management · Austin, TX	15	44

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