PROVIDER PROFILE · NPI 1790849685

Fred VonstieffM.D.

PRACTICEFRED J VON STIEFF MD A PROFESSIONAL CORPORATIONSee all providers at this practice →

Addiction MedicineConcord, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

174

Unique beneficiaries

—

Total services

377

Distinct HCPCS

Medicare payment

$35K

Peer benchmark

Total Medicare services vs. 27 Addiction Medicine providers in CA — above median (cohort median 268).

PRESCRIBING · PART D · 2024

Total Rx claims

629

Beneficiaries

—

Total drug cost

$14K

Distinct drugs

Brand share

1.9%

Top prescribed drugs

Trazodone Hcl75 claims

Gabapentin68 claims

Hydroxyzine Pamoate64 claims

Famotidine64 claims

Naltrexone Hcl57 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$27

Payment records

By payment type

Food and Beverage$27

REFERRAL NETWORK

Where Fred Vonstieff'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
JOHN MUIR BEHAVIORAL HEALTH	95	388
Jonathan Posin Diagnostic Radiology · Walnut Creek, CA	13	22

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