What is Mark Walsh's specialty?

Mark Walsh (NPI 1003952318) is a Medicare-billing provider whose primary specialty is Ophthalmology in Tucson, AZ.

Where does Mark Walsh practice?

Mark Walsh practices in Tucson, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1003952318.

How much does Medicare pay Mark Walsh?

Mark Walsh (NPI 1003952318) received approximately $4.9M in total Medicare Part B payments, serving 1,426 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1003952318

Mark WalshM.D.,PHD

OphthalmologyTucson, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,499

Unique beneficiaries

—

Total services

86,610

Distinct HCPCS

Medicare payment

$4.8M

Peer benchmark

Total Medicare services vs. 293 Ophthalmology providers in AZ — top quintile (cohort median 2,550).

PRESCRIBING · PART D · 2024

Total Rx claims

770

Beneficiaries

—

Total drug cost

$30K

Distinct drugs

Brand share

20.5%

Top prescribed drugs

Prednisolone Acetate308 claims

Neomycin/Polymyxin B/Dexametha158 claims

Ketorolac Tromethamine120 claims

Brimonidine Tartrate55 claims

Difluprednate37 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

100.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$956

Payment records

By payment type

Food and Beverage$956

Top paying entities

Food and Beverage$956

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 030011

Hospital

REFERRAL NETWORK

Where Mark Walsh'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 · 39 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC	71	178
NORTHWEST HOSPITAL LLC	62	95
TUCSON MEDICAL CENTER	46	73
ORO VALLEY HOSPITAL LLC	39	72
BANNER PHARMACY SERVICES LLC	34	61
April Harris Ophthalmology · Tucson, AZ	31	67
CARONDELET HEALTH NETWORK	27	53
Southwest Ambulance Of Tucson Inc Ambulance Service Provider · Tucson, AZ	24	34
Jason Levine Ophthalmology · Tucson, AZ	19	29
Timothy Hodges Ophthalmology · Tucson, AZ	18	33
COHEN, STEVEN	17	31
Inform Diagnostics, Inc. Clinical Laboratory · Coppell, TX	15	23

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Sonora Quest Laboratories Llc Clinical Laboratory · Phoenix, AZ	163	350
Laboratory Corporation Of America Clinical Laboratory · Phoenix, AZ	106	197
BANNER - UNIVERSITY MEDICAL CENTER TUCSON CAMPUS LLC	85	236
CARONDELET HEALTH NETWORK	78	181
NORTHWEST HOSPITAL LLC	65	110
TUCSON MEDICAL CENTER	48	86
ORO VALLEY HOSPITAL LLC	40	62
CARONDELET HEALTH NETWORK	28	47
April Harris Ophthalmology · Tucson, AZ	28	58
Paul Sagerman Pathology · Tucson, AZ	27	37
Southwest Ambulance Of Tucson Inc Ambulance Service Provider · Tucson, AZ	26	41
Cameron Javid Ophthalmology · Tucson, AZ	25	42

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