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DR. RYAN ARONIN
NPI 1326486770
Internal Medicine in Los Angeles, CA

Active since June 07, 2013PECOS EnrolledAccepts Medicare Assignment
100 UCLA MEDICAL PLZ, SUITE 490, LOS ANGELES, CA 90095(310) 206-8000(310) 206-8005 Get Directions Write a Review

NPPES record last updated: December 6, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 6, 2019, Dec 9, 2015 (2 updates tracked since 2015).

About Dr. Ryan Aronin NPPES

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

DR. RYAN ARONIN (NPI 1326486770) is an individual internal medicine provider in Los Angeles, California, licensed in California (A140195) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, maintains 7 additional practice locations, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1326486770
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. RYAN ARONIN
Location Address100 UCLA MEDICAL PLZ, SUITE 490Los Angeles, CA 90095-3075
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(310) 206-8000
Fax(310) 206-8005
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateJune 7, 2013
Last NPPES UpdateDecember 6, 20192 updates tracked since enumeration
✔ NPI 1326486770 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A140195
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
100 UCLA MEDICAL PLZ, Los Angeles, CA 90095
Open in Google Maps ↗

Secondary Practice Locations 7

Location 14560 Admiralty Way Ste 100Marina Del Rey, CA 90292-5424 · Phone (310) 827-3700 · Fax (310) 578-5379
Location 22424 Wilshire BlvdSanta Monica, CA 90403-5806 · Phone (310) 828-4530 · Fax (310) 453-4613
Location 326585 Agoura Rd Ste 330Calabasas, CA 91302-1958 · Phone (818) 876-1050 · Fax (818) 876-1026
Location 44323 W Riverside DrBurbank, CA 91505-4044 · Phone (881) 556-2700 · Fax (818) 295-3450
Location 56000 Sepulveda Blvd Ste 2660Culver City, CA 90230-6432 · Phone (310) 313-0020 · Fax (310) 313-0060
Location 66344 Topanga Canyon Blvd Ste 2040Woodland Hills, CA 91367-2362 · Phone (818) 610-0292 · Fax (818) 610-0293
Location 710250 Santa Monica Blvd Ste 2440Los Angeles, CA 90067-6593 · Phone (310) 286-0122 · Fax (310) 286-0125

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. Ryan Aronin 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 ID9133419468
PECOS Enrollment IDI20160527001315
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 Ryan Aronin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Regents Of The University Of California
Same address
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276

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

Areas of Expertise CMS Part B claims 13

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.
1,150 services493 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
244 services244 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
192 services155 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.
137 services128 patients
Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005
An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.
68 services64 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
56 services56 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90095 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
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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.

MICHAEL SCOTT LEVINE M.D., AMC
Internal Medicine (Critical Care Medicine)
100 UCLA MEDICAL PLZ, SUITE 723
LOS ANGELES, CA 90095
Los Angeles County (310) 794-1300
UNIVERSITY PODIATRY GROUP, INC.
Podiatrist
100 UCLA MEDICAL PLZ, #460
LOS ANGELES, CA 90095
Los Angeles County (310) 443-8999
BARRY I. LUDWIG, M.D. INC.
Psychiatry & Neurology (Neurology)
100 UCLA MEDICAL PLZ, 425
LOS ANGELES, CA 90095
Los Angeles County (310) 794-1500
DR. EDWARD LEWIS TOBINICK M.D.
Specialist
100 UCLA MEDICAL PLZ, SUITES 205-210
LOS ANGELES, CA 90095
Los Angeles County (310) 824-6191
SANJOG A. PANGARKAR, M.D.
Pain Medicine (Pain Medicine)
100 UCLA MEDICAL PLZ, STE. 760
LOS ANGELES, CA 90095
Los Angeles County (310) 794-7246
NEUROLOGY & REHABILITATION MEDICAL GROUP
Specialist
100 UCLA MEDICAL PLZ, STE 425
LOS ANGELES, CA 90095
Los Angeles County (310) 794-1500
UNIVERSITY CARDIOVASCULAR MEDICAL GROUP
Clinic/Center (Medical Specialty)
100 UCLA MEDICAL PLZ, SUITE 630
LOS ANGELES, CA 90095
Los Angeles County (310) 794-1200
DR. VIRIT DILIP BUTANI D.P.M.
Podiatrist (Foot & Ankle Surgery)
100 UCLA MEDICAL PLZ, SUITE 460
LOS ANGELES, CA 90095
Los Angeles County (310) 433-8999

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 Ryan Aronin's NPI number?

The NPI number for Ryan Aronin is 1326486770. It was assigned to this individual provider in the NPPES registry on June 7, 2013.

Where is Ryan Aronin located?

Ryan Aronin practices at 100 Ucla Medical Plz Suite 490, Los Angeles, CA 90095. The listed phone number is (310) 206-8000.

What is Ryan Aronin's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ryan Aronin enrolled in Medicare?

Yes. Ryan Aronin 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.

Which organization bills Medicare for Ryan Aronin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Aronin reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, CA). The 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 Ryan Aronin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ryan Aronin was last updated on December 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.