What is Mark Ashby's specialty?

Mark Ashby (NPI 1093060386) is a Medicare-billing provider whose primary specialty is Physician Assistant in Sherman Oaks, CA.

Where does Mark Ashby practice?

Mark Ashby practices in Sherman Oaks, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1093060386.

How much does Medicare pay Mark Ashby?

Mark Ashby (NPI 1093060386) received approximately $112K in total Medicare Part B payments, serving 426 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1093060386

Mark AshbyPA

Physician AssistantSherman Oaks, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,318

Unique beneficiaries

—

Total services

1,364

Distinct HCPCS

Medicare payment

$108K

Peer benchmark

Total Medicare services vs. 7,073 Physician Assistant providers in CA — top quintile (cohort median 224).

PRESCRIBING · PART D · 2024

Total Rx claims

282

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

47.9%

Top prescribed drugs

Ibuprofen63 claims

Hydrocodone/Acetaminophen39 claims

Ondansetron31 claims

Sulfamethoxazole/Trimethoprim27 claims

Acetaminophen With Codeine24 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 050261

Hospital

CCN 050586

Hospital

CCN 050709

Hospital

REFERRAL NETWORK

Where Mark Ashby'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 · 14 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
TULARE LOCAL HEALTH CARE DISTRICT	41	191
ALTURA CENTERS FOR HEALTH	20	51
Robert Kollen Emergency Medicine · Colton, CA	17	67
Frank Macaluso Diagnostic Radiology · Tulare, CA	16	68
LIN, JOHN	11	25

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
TULARE LOCAL HEALTH CARE DISTRICT	98	353
Frank Macaluso Diagnostic Radiology · Tulare, CA	43	113
SMITH, RONALD	30	69
Brian Woo Emergency Medicine · Selma, CA	29	63
SMITH, PRUDENCE	24	51
KAWEAH DELTA HEALTH CARE DISTRICT	24	79
Sierra Lifestar Inc., Ambulance Service Provider · Tulare, CA	22	49
ALTURA CENTERS FOR HEALTH	18	48
Ronald Ostrom Emergency Medicine · Tulare, CA	15	32
LIN, JOHN	15	27
Michelle Thomas Hospitalist · Fresno, CA	14	43
David Smith Emergency Medicine · Hanford, CA	12	23

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