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DAVID C SIMON MD
NPI 1780818369
Pediatrics - Pediatric Hematology-Oncology in Long Beach, CA

Active since May 11, 2009PECOS Enrolled
2653 ELM AVE, SUITE 200, LONG BEACH, CA 90806(562) 492-1062(562) 595-5296 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About David C Simon Md NPPES

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

DAVID C SIMON MD (NPI 1780818369) is an individual pediatric hematology-oncology provider in Long Beach, California, licensed in California (A86752) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780818369
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDAVID C SIMONCredential: MD
Location Address2653 ELM AVE, SUITE 200Long Beach, CA 90806-1652
Mailing Address6430 W Sunset Blvd, Suite 600Los Angeles, CA 90028-7901 · (323) 361-2337 · Fax (323) 361-8491
Phone(562) 492-1062
Fax(562) 595-5296
Sole ProprietorNo
Enumeration DateMay 11, 2009
Last NPPES UpdateDecember 2, 2021
✔ NPI 1780818369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in CA · A86752
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
2653 ELM AVE, Long Beach, CA 90806
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David C Simon 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 Reassignment

Medicare enrollment records show David Simon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
6.3 mi
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111

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

Other Providers at the Same Location NPPES 9

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

TIFFANY GREEN NP-C
Nurse Practitioner (Family)
2653 ELM AVE, SUITE 300
LONG BEACH, CA 90806
Los Angeles County (562) 595-7335
MR. RAMESH PATEL MD
Pediatrics (Pediatric Hematology-Oncology)
2653 ELM AVE, #200
LONG BEACH, CA 90806
Los Angeles County (562) 728-5000
JOETTA DESWARTE WALLCE NP
Nurse Practitioner
2653 ELM AVE, SUITE 200
LONG BEACH, CA 90806
Los Angeles County (562) 728-5000
MS. SUSAN VERONICA SHANNON CRNP
Nurse Practitioner
2653 ELM AVE, SUITE 200
LONG BEACH, CA 90806
Los Angeles County (562) 728-5000
DR. WILLIAM J LYONS M.D.
Specialist
2653 ELM AVE, STE 300
LONG BEACH, CA 90806
Los Angeles County (562) 595-7335
ONCOLOGY HEMATOLOGY CONSULTANTS MEDICAL GROUP, INC.
Specialist
2653 ELM AVE, SUITE 300
LONG BEACH, CA 90806
Los Angeles County (562) 595-7335
DR. CYNTHIA ANN FORSTHOFF M.D.
Specialist
2653 ELM AVE, STE 300
LONG BEACH, CA 90806
Los Angeles County (562) 595-7335
PEDIATRIC & ADOLESCENT HEMATOLOGY-ONCOLOGY ASSOCIATES
Specialist
2653 ELM AVE, SUITE 200
LONG BEACH, CA 90806
Los Angeles County (562) 492-1062

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 David Simon's NPI number?

The NPI number for David Simon is 1780818369. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Where is David Simon located?

David Simon practices at 2653 Elm Ave Suite 200, Long Beach, CA 90806. The listed phone number is (562) 492-1062.

What is David Simon's specialty?

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

Is David Simon enrolled in Medicare?

Yes. David Simon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Simon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Simon reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor City, 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 David Simon'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 David Simon was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.