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ROY D AYALON, MD., INC
NPI 1578854808
Obstetrics & Gynecology in Tarzana, CA

Active since April 20, 2011
18411 CLARK ST STE 107, TARZANA, CA 91356(818) 654-9312(818) 654-9631 Get Directions Write a Review

NPPES record last updated: July 31, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Roy D Ayalon, Md., Inc NPPES

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

ROY D AYALON, MD., INC (NPI 1578854808) is a healthcare organization registered as an obstetrics & gynecology in Tarzana, California and active in the NPI registry since April 2011. The organization lists Roy D Ayalon, Ob/gyn, as its authorized official.

NPPES Registry Identity

NPI1578854808
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameROY D AYALON, MD., INC
Location Address18411 CLARK ST STE 107Tarzana, CA 91356-3530
Mailing Address18411 Clark StTarzana, CA 91356-3506 · (818) 654-9312 · Fax (818) 654-9631
Phone(818) 654-9312
Fax(818) 654-9631
Organization SubpartNo
Authorized OfficialRoy D AyalonOb/gyn · (818) 654-9312
Enumeration DateApril 20, 2011
Last NPPES UpdateJuly 31, 2011
✔ NPI 1578854808 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 · A102319
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.
18411 CLARK ST STE 107, Tarzana, CA 91356
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Roy D Ayalon, Md., Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Roy D Ayalon, MD., Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Roy Ayalon, M.D.
Obstetrics/Gynecology
NPI 1154599546
18411 CLARK ST STE 107
Tarzana, CA 91356
(818) 654-9312
✔ PECOS✔ Accepts MedicareSame address

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

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 Roy D Ayalon, MD., Inc's NPI number?

The NPI number for Roy D Ayalon, MD., Inc is 1578854808. It was assigned to this organization in the NPPES registry on April 20, 2011.

Where is Roy D Ayalon, MD., Inc located?

Roy D Ayalon, MD., Inc is located at 18411 Clark St Ste 107, Tarzana, CA 91356. The listed phone number is (818) 654-9312.

What is Roy D Ayalon, MD., Inc's specialty?

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

Is Roy D Ayalon, MD., Inc enrolled in Medicare?

Yes. Roy D Ayalon, MD., Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Roy D Ayalon, MD., Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Obstetrics/Gynecology) reassigns their Medicare billing to Roy D Ayalon, MD., Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Roy D Ayalon, MD., Inc was last updated on July 31, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.