What is John Gustafson's specialty?

John Gustafson (NPI 1003836016) is a Medicare-billing provider whose primary specialty is Obstetrics & Gynecology in Ventura, CA.

Where does John Gustafson practice?

John Gustafson practices in Ventura, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1003836016.

How much does Medicare pay John Gustafson?

John Gustafson (NPI 1003836016) received approximately $15K in total Medicare Part B payments, serving 172 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1003836016

John GustafsonM.D.

PRACTICEVENTURA COUNTY OBSTETRIC AND GYNECOLOGIC MEDICAL GROUP, INCSee all providers at this practice →

Obstetrics & GynecologyVentura, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

221

Unique beneficiaries

—

Total services

232

Distinct HCPCS

Medicare payment

$13K

Peer benchmark

Total Medicare services vs. 1,761 Obstetrics & Gynecology providers in CA — above median (cohort median 118).

PRESCRIBING · PART D · 2024

Total Rx claims

355

Beneficiaries

—

Total drug cost

$23K

Distinct drugs

Brand share

52.4%

Top prescribed drugs

Estradiol132 claims

Progesterone, Micronized43 claims

Estradiol36 claims

Clotrimazole/Betamethasone Dip22 claims

Valacyclovir Hcl17 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$54

Payment records

By payment type

Food and Beverage$54

Top paying entities

Food and Beverage$54

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050394

Hospital

REFERRAL NETWORK

Where John Gustafson'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 · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	25	75
COMMUNITY MEMORIAL HEALTH SYSTEM	16	21

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	40	94
COMMUNITY MEMORIAL HEALTH SYSTEM	19	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