What is Nicholas Mast's specialty?

Nicholas Mast (NPI 1932399698) is a Medicare-billing provider whose primary specialty is Orthopaedic Surgery in Novato, CA.

Where does Nicholas Mast practice?

Nicholas Mast practices in Novato, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1932399698.

How much does Medicare pay Nicholas Mast?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Nicholas Mast (NPI 1932399698) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1932399698

Nicholas Mast

PRACTICENOAH D. WEISS, MD INCSee all providers at this practice →

Orthopaedic SurgeryNovato, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

226

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

37.2%

Top prescribed drugs

Celecoxib114 claims

Oxycodone Hcl/Acetaminophen41 claims

Tramadol Hcl28 claims

Hydrocodone/Acetaminophen16 claims

Ondansetron14 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$23K

Payment records

By payment type

Consulting Fee$17K

Travel and Lodging$4K

Food and Beverage$1K

Top paying entities

Consulting Fee$17K

Travel and Lodging$4K

Food and Beverage$1K

REFERRAL NETWORK

Where Nicholas Mast'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UCSF HEALTH COMMUNITY HOSPITALS	295	1,592
Luke Scalcione Diagnostic Radiology · San Diego, CA	97	271
Flora Stepansky Diagnostic Radiology · San Francisco, CA	63	171
David Priest Diagnostic Radiology · San Francisco, CA	51	135
John Harris Diagnostic Radiology · San Francisco, CA	42	134
MARIN GENERAL HOSPITAL	28	198
Mamata Myneni Diagnostic Radiology · Durham, NC	26	74
Jessica Tan Diagnostic Radiology · San Francisco, CA	26	73
Michael Wahlers Anesthesiology · Santa Cruz, CA	19	61
Harris Goodman Pathology · Oakland, CA	16	46

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