GORDON S. APPELBAUM M.D.
NPI 1245200674
Emergency Medicine in Oceanside, CA
About Gordon S. Appelbaum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GORDON S. APPELBAUM M.D. (NPI 1245200674) is an individual emergency medicine provider in Oceanside, California, licensed in California (G069453) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Toledo College Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
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
Gordon S. Appelbaum 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.
Medicare Billing Reassignments
9Medicare enrollment records show Gordon Appelbaum reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oceanside, CA 92056
- Reassigned Medicare billing, California enrollment
- 5 clinicians in this Medicare group
San Diego, CA 92130
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
San Diego, CA 92131
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 clinicians in this Medicare group
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 62 clinicians in this Medicare group
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 200 clinicians in this Medicare group
Bakersfield, CA 93312
- Reassigned Medicare billing, California enrollment
- 225 clinicians in this Medicare group
Hobbs, NM 88240
- Reassigned Medicare billing, New Mexico enrollment
- 119 clinicians in this Medicare group
Waipahu, HI 96797
- Reassigned Medicare billing, Hawaii enrollment
- Medicare enrollment name: Waianae District Comprehensive Health And Hospital Board Incorporated
- 240 clinicians in this Medicare group
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 29
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92056 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Gordon Appelbaum's NPI number?
The NPI number for Gordon Appelbaum is 1245200674. It was assigned to this individual provider in the NPPES registry on January 26, 2006.
Where is Gordon Appelbaum located?
Gordon Appelbaum practices at 4171 Oceanside Blvd, Oceanside, CA 92056. The listed phone number is (760) 216-6253.
What is Gordon Appelbaum's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gordon Appelbaum enrolled in Medicare?
Yes. Gordon Appelbaum 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 organizations bill Medicare for Gordon Appelbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gordon Appelbaum reassigns Medicare benefits to 9 organizations: Next Step Medical Inc. (Oceanside, CA), Two Zeds Medical Corporation (San Diego, CA), Jurkowski Medical Corporation (San Diego, CA), Sharp Rees-Stealy Medical Group, Inc (San Diego, CA), Alvarado Emergency Medical Associates, Inc. (San Diego, CA) and 4 more organizations, listed in the Medicare section above. Each 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 Gordon Appelbaum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gordon Appelbaum accept?
Health plans from Blue Cross and Blue Shield of Texas, CareSource and HMSA list Gordon Appelbaum 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 Gordon Appelbaum was last updated on December 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.