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DR. GUY AARON YOUNG M.D.
NPI 1629175195
Pediatrics - Pediatric Hematology-Oncology in Los Angeles, CA

Active since September 19, 2006PECOS EnrolledAccepts Medicare Assignment
4650 W SUNSET BLVD, LOS ANGELES, CA 90027(323) 361-5507(323) 361-7128 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 14, 2026, Apr 10, 2025, Apr 4, 2025 (3 updates tracked since 2025).

About Dr. Guy Aaron Young M.d. NPPES

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

DR. GUY AARON YOUNG M.D. (NPI 1629175195) is an individual pediatric hematology-oncology provider in Los Angeles, California, licensed in Montana (MED-PHYS-LIC-126509) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bozeman, and is a graduate of Other (1992).

NPPES Registry Identity

NPI1629175195
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDR. GUY AARON YOUNGCredential: M.D.
Location Address4650 W SUNSET BLVDLos Angeles, CA 90027-6062
Mailing Address4650 W Sunset BlvdLos Angeles, CA 90027-6062 · (323) 361-2601 · Fax (323) 361-7128
Phone(323) 361-5507
Fax(323) 361-7128
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateSeptember 19, 2006
Last NPPES UpdateApril 14, 20263 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1629175195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
Licenses✔ Licensed in MT · MED-PHYS-LIC-126509✔ Licensed in CA · G85188
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
4650 W SUNSET BLVD, Los Angeles, CA 90027
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Secondary Practice Location 1

Location 1937 Highland Blvd Ste 5320Bozeman, MT 59715-6916 · Phone (406) 414-4900

Other Identifiers 2

Medicaid00G851880CA
MedicaidGR0053510CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, Providence Health Plan.Insurance ›

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. Guy Aaron Young 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 ID648250605
PECOS Enrollment IDI20040721001231
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.

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.

DR. MARK HENDRIK CORDEN M.D.
Pediatrics
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-8893
MS. ROBERTA MIYEKO KATO MD
Pediatrics (Pediatric Pulmonology)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-2101
CHILDREN'S HOSPITAL LOS ANGELES
General Acute Care Hospital (Children)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3644
JESSICA ELIZABETH GREIM DPT, PT
Physical Therapist (Pediatrics)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (310) 361-2118
MOLLY CEVASCO PH.D., BCBA
Psychologist (Clinical Child & Adolescent)
4650 W SUNSET BLVD, MS #53
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3849
GINNY KIM THAN NP
Nurse Practitioner (Pediatrics)
4650 W SUNSET BLVD, MS #81
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3033
DOUGLAS SHAPIRO MD
Pediatrics (Pediatric Emergency Medicine)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 660-2450
ALEXANDRA LYNN JOSTES MD
Student in an Organized Health Care Education/Training Program
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-2122

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 Guy Young's NPI number?

The NPI number for Guy Young is 1629175195. It was assigned to this individual provider in the NPPES registry on September 19, 2006.

Where is Guy Young located?

Guy Young practices at 4650 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (323) 361-5507.

What is Guy Young's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Guy Young enrolled in Medicare?

Yes. Guy Young 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.

What insurance does Guy Young accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Providence Health Plan list Guy Young 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 Guy Young was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.