What is Robert Ash's specialty?

Robert Ash (NPI 1326238650) is a Medicare-billing provider whose primary specialty is Radiation Oncology in Orange, CA.

Where does Robert Ash practice?

Robert Ash practices in Orange, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1326238650.

How much does Medicare pay Robert Ash?

Robert Ash (NPI 1326238650) received approximately $143K in total Medicare Part B payments, serving 204 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1326238650

Robert AshMD

Radiation OncologyOrange, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

662

Unique beneficiaries

—

Total services

1,835

Distinct HCPCS

Medicare payment

$133K

Peer benchmark

Total Medicare services vs. 496 Radiation Oncology providers in CA — above median (cohort median 1,716).

PRESCRIBING · PART D · 2024

Total Rx claims

152

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

30.3%

Top prescribed drugs

Tamsulosin Hcl80 claims

Silver Sulfadiazine24 claims

Lidocaine Hcl22 claims

Silver Sulfadiazine15 claims

Nystatin11 claims

QUALITY · MIPS · 2024

Final MIPS score

92.8

Quality

78.5

Cost

70.4

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.75%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$280

Payment records

By payment type

Food and Beverage$280

Top paying entities

Food and Beverage$280

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050069

Hospital

REFERRAL NETWORK

Where Robert Ash'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 · 9 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	98	779
Dan Vu Diagnostic Radiology · Orange, CA	26	96
Afshin Forouzannia Radiation Oncology · Orlando, FL	24	227
Hieu Truong Diagnostic Radiology · Orange, CA	17	65
Tiberio Lindgren Internal Medicine · Orange, CA	16	420
Kirk Ohanian Diagnostic Radiology · Fort Worth, TX	15	65
Tariq Mahmood Hematology-Oncology · Orange, CA	13	447
Kenneth Meng Diagnostic Radiology · Orange, CA	12	52

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ST. JOSEPH HOSPITAL OF ORANGE	165	1,484
Unilab Corporation Clinical Laboratory · West Hills, CA	64	734
ST JOSEPH HOSPITAL OF ORANGE	18	68
Tiberio Lindgren Internal Medicine · Orange, CA	13	344
Hieu Truong Diagnostic Radiology · Orange, CA	13	36
Tariq Mahmood Hematology-Oncology · Orange, CA	12	425
Dan Vu Diagnostic Radiology · Orange, CA	11	51
ALEXSON, EDWARD	11	144
Joon Kim Diagnostic Radiology · Orange, CA	11	31

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