What is Fred Vonstieff's specialty?

Fred Vonstieff (NPI 1790849685) is a Medicare-billing provider whose primary specialty is Addiction Medicine in Concord, CA.

Where does Fred Vonstieff practice?

Fred Vonstieff practices in Concord, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1790849685.

How much does Medicare pay Fred Vonstieff?

Fred Vonstieff (NPI 1790849685) received approximately $36K in total Medicare Part B payments, serving 66 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Top paying entities

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