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DR. ROY DANIEL AYALON M.D.
NPI 1154599546
Obstetrics & Gynecology - Gynecology in Tarzana, CA

Active since February 19, 2008PECOS EnrolledAccepts Medicare AssignmentCLIA 05D2033847 · Microscopy
18411 CLARK ST STE 107, TARZANA, CA 91356(818) 654-9312 Get Directions Write a Review

NPPES record last updated: March 14, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Roy Daniel Ayalon M.d. NPPES

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

DR. ROY DANIEL AYALON M.D. (NPI 1154599546) is an individual gynecology provider in Tarzana, California, licensed in California (A102319) and active in the NPI registry since February 2008. He is enrolled in Medicare PECOS, holds a CLIA Microscopy certificate valid through December 11, 2027, and is a graduate of Icahn School Of Medicine At Mount Sinai (2004).

NPPES Registry Identity

NPI1154599546
Entity TypeIndividualMale
Primary Taxonomy207VG0400X
Provider Legal NameDR. ROY DANIEL AYALONCredential: M.D.
Location Address18411 CLARK ST STE 107Tarzana, CA 91356-3530
Mailing Address18411 Clark St. #107Tarzana, CA 91356-3156 · (818) 654-9312
Phone(818) 654-9312
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2004
Enumeration DateFebruary 19, 2008
Last NPPES UpdateMarch 14, 2013
✔ NPI 1154599546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207VG0400X
License✔ Licensed in CA · A102319
Definition
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
18411 CLARK ST STE 107, Tarzana, CA 91356
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Roy Daniel Ayalon M.d. 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 ID840473880
PECOS Enrollment IDI20110329000199
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D2033847

Roy D Ayalon, MD Inc · Tarzana, CA
Active · expires Dec 11, 2027
CLIA Number05D2033847
Laboratory TypePhysician Office
Certificate Effective DateDecember 12, 2025
Certificate Expiration DateDecember 11, 2027
Laboratory DirectorRoy Ayalon
Laboratory Phone(818) 654-9312
Laboratory LocationRoy D Ayalon, MD Inc18411 Clark St Ste 107, Tarzana, CA 91356
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
57 services40 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
24 services24 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
20 services16 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91356 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.

ROY D AYALON, MD., INC
Obstetrics & Gynecology
18411 CLARK ST STE 107
TARZANA, CA 91356
Los Angeles County (818) 654-9312

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 Ayalon's NPI number?

The NPI number for Roy Ayalon is 1154599546. It was assigned to this individual provider in the NPPES registry on February 19, 2008.

Where is Roy Ayalon located?

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

What is Roy Ayalon's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

Is Roy Ayalon enrolled in Medicare?

Yes. Roy Ayalon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Does Roy Ayalon hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D2033847) is associated with this NPI, valid through December 11, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Roy Ayalon was last updated on March 14, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.