DR. JANTJE MATTHEW GROOT MD
NPI 1083859912
Psychiatry & Neurology - Psychiatry in Ventura, CA

Q: What is Jantje Groot's NPI number?

The NPI number for Jantje Groot is 1083859912. It was assigned to this individual provider in the NPPES registry on December 5, 2008.

Q: What is Jantje Groot's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Jantje Groot was last updated on May 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 05, 2008PECOS EnrolledAccepts Medicare Assignment

4258 TELEGRAPH RD, VENTURA, CA 93003(805) 477-5700(805) 644-5245 Get Directions Write a Review

NPPES record last updated: May 21, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 21, 2021, Jun 14, 2019 (2 updates tracked since 2019).

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About Dr. Jantje Matthew Groot Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JANTJE MATTHEW GROOT MD (NPI 1083859912) is an individual psychiatry provider in Ventura, California, licensed in California (A102213) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2006).

NPPES Registry Identity

NPI1083859912

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. JANTJE MATTHEW GROOTCredential: MD

Location Address4258 TELEGRAPH RDVentura, CA 93003-3706

Mailing Address800 S Victoria Ave, L4615, Vchca - Physician ServicesVentura, CA 93009-0003 · (805) 677-5181 · Fax (805) 677-5304

Phone(805) 477-5700

Fax(805) 644-5245

Sole ProprietorNo

Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2006

Enumeration DateDecember 5, 2008

Last NPPES UpdateMay 21, 20212 updates tracked since enumeration

NPPES CertifiedMay 21, 2021

✔ NPI 1083859912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A102213

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

4258 TELEGRAPH RD, Ventura, CA 93003

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Jantje Matthew Groot Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850457474

PECOS Enrollment IDI20090306000176

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Jantje Groot reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Ventura

Same address

Community/Behavioral Health

4258 TELEGRAPH RD
Ventura, CA 93003

Reassigned Medicare billing, California enrollment
710 clinicians in this Medicare group

NPI 1235259029 (805) 477-5700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$185.36 typical visit price

range $62.32 – $185.36

Typical copayment $46.34 (range $15.58 – $46.34)

Most-billed visit code 99205

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEPHAN LEO BALITAO

Registered Nurse (Psychiatric/Mental Health)