PROVIDER PROFILE · NPI 1245201516

Ellyn AshidaMD

PRACTICEELLYN R. ASHIDA, M.D., INC.See all providers at this practice →

Allergy/ ImmunologyTorrance, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

534

Unique beneficiaries

—

Total services

7,824

Distinct HCPCS

Medicare payment

$100K

Peer benchmark

Total Medicare services vs. 329 Allergy/ Immunology providers in CA — top quintile (cohort median 4,377).

PRESCRIBING · PART D · 2024

Total Rx claims

751

Beneficiaries

—

Total drug cost

$703K

Distinct drugs

Brand share

40.1%

Top prescribed drugs

Montelukast Sodium97 claims

Fluticasone Propionate75 claims

Azelastine Hcl74 claims

Albuterol Sulfate63 claims

Omalizumab49 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$522

Payment records

By payment type

Food and Beverage$467

Education$55

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050351

Hospital

REFERRAL NETWORK

Where Ellyn Ashida'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 · 9 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
TORRANCE MEMORIAL MEDICAL CENTER	75	524
Unilab Corporation Clinical Laboratory · West Hills, CA	47	333
PATHOLOGY, INC.	19	51
Michael Stein Diagnostic Radiology · Torrance, CA	14	32
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	13	65

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
TORRANCE MEMORIAL MEDICAL CENTER	68	596
Unilab Corporation Clinical Laboratory · West Hills, CA	54	400
PROVIDENCE HEALTH SYSTEM SOUTHERN CALIFORNIA	48	254
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	48	290
Takako Iwasaki Dermatology · Torrance, CA	17	155
PATHOLOGY, INC.	16	53
Jean Katow Ophthalmology · Los Angeles, CA	16	81
Michael Stein Diagnostic Radiology · Torrance, CA	15	49
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	14	78

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