Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JUSTIN DIEDRICH MD
NPI 1396978037
Obstetrics & Gynecology in Agoura Hills, CA

Q: What is Justin Diedrich's NPI number?

The NPI number for Justin Diedrich is 1396978037. It was assigned to this individual provider in the NPPES registry on August 28, 2009.

Q: What is Justin Diedrich's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Justin Diedrich was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days 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 August 28, 2009PECOS Enrolled

29525 CANWOOD ST STE 220, AGOURA HILLS, CA 91301(818) 722-3262(818) 584-8882 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 28, 2026, Mar 3, 2021 (2 updates tracked since 2021).

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About Dr. Justin Diedrich Md NPPES

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

DR. JUSTIN DIEDRICH MD (NPI 1396978037) is an individual obstetrics & gynecology provider in Agoura Hills, California, licensed in California (A114859) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Bernardino.

NPPES Registry Identity

NPI1396978037

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. JUSTIN DIEDRICHCredential: MD

Location Address29525 CANWOOD ST STE 220Agoura Hills, CA 91301-4231

Mailing Address29525 Canwood St Ste 220Agoura Hills, CA 91301-4231 · (818) 722-3262 · Fax (818) 584-8882

Phone(818) 722-3262

Fax(818) 584-8882

Sole ProprietorYes

Enumeration DateAugust 28, 2009

Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1396978037 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · A114859

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

29525 CANWOOD ST STE 220, Agoura Hills, CA 91301

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Secondary Practice Location 1

Location 11873 Commercenter WSan Bernardino, CA 92408-3303 · Phone (714) 922-4100

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Justin Diedrich Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

Medicare enrollment records show Justin Diedrich reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California Irvine

51 mi

Federally Qualified Health Center (FQHC)

2441 W LA PALMA AVE
Anaheim, CA 92801

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

NPI 1598790529 (657) 282-6356

Regents Of The University Of California

56 mi

Obstetrics & Gynecology

101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868

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

NPI 1356304034 (714) 456-6431

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 91301 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

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

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

DR. MARK HESTRIN M.D.

Anesthesiology

29525 CANWOOD ST STE 220
AGOURA HILLS, CA 91301

Los Angeles County (310) 903-1980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Justin Diedrich's NPI number?

The NPI number for Justin Diedrich is 1396978037. It was assigned to this individual provider in the NPPES registry on August 28, 2009.

Where is Justin Diedrich located?

Justin Diedrich practices at 29525 Canwood St Ste 220, Agoura Hills, CA 91301. The listed phone number is (818) 722-3262.

What is Justin Diedrich's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Justin Diedrich enrolled in Medicare?

Yes. Justin Diedrich is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Justin Diedrich's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Diedrich reassigns Medicare benefits to 2 organizations: University Of California Irvine (Anaheim, CA) and Regents Of The University Of California (Orange, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Justin Diedrich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Justin Diedrich accept?

Health plans from Oscar Health Maintenance Organization of Florida, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Justin Diedrich as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Justin Diedrich was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days 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.