GRIETJE VAN DYK (MD) – Orthopaedic Surgery Physician, NPI 1003126830

Orthopaedic Surgery Physician

GRIETJE VAN DYK (MD) is a healthcare provider. based in Los alamitos, California. specializing in Orthopaedic Surgery Physician. They hold the professional credentials MD. They hold a License No. G61231 (CA). The NPI Number for GRIETJE VAN DYK (MD) is 1003126830

Main info

Female

Sole Proprietor

40 Years Of Experience

Accepts Medicare Assignment

Name

GRIETJE VAN DYK (MD)

NPI

1003126830

Phone

(562) 314-1400

Address

3851 KATELLA AVE STE 150

Enumeration Date

14 October 2010

Last Update Date

27 October 2020

Doctor Profile

Medical School Name

UN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE

Secondary Phone

5623141400

Graduation Year

1986 (40 years ago)

PAC ID

5698934826

Group Practice PAC ID

3678565512

Professional Enrollment ID

I20120307000949

Data current as of

20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience54

Completeness75

Years active:15State licenses:1Digital endpointsOther names

Provider Addresses for GRIETJE VAN DYK (MD)

3851 KATELLA AVE STE 150
LOS ALAMITOS, CA 907203353
Phone: (562) 314-1400
Fax: (562) 431-0564
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 90720)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 3678565512View full group profile

Name	Specialty	State
PERRY ROBERT SECOR (MD)	-	CA
DIANA LAU (M.D.)	-	CA

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Frequently asked questions

Does GRIETJE VAN DYK (MD) share an NPI with anyone else?

NPI numbers are unique to each provider or organization — GRIETJE VAN DYK (MD) uses 1003126830.

Does CMS list GRIETJE VAN DYK (MD) as active?

Yes — GRIETJE VAN DYK (MD) is active in the NPI listing used on this page.

What taxonomy line describes GRIETJE VAN DYK (MD)?

For research purposes, treat GRIETJE VAN DYK (MD) as Orthopaedic Surgery Physician in this dataset. Clinical services aligned with this taxonomy classification.

Where is GRIETJE VAN DYK (MD) based?

GRIETJE VAN DYK (MD) is tied to Los Alamitos, California in the data we show; additional addresses may exist on the full record.

What does 'Individual Provider' mean on this profile?

Entity type tells you whether the number belongs to a person or an organization.