DR. JOHN ONEIL SIMMONDS M.D
NPI 1801195912
Orthopaedic Surgery in Los Angeles, CA
About Dr. John Oneil Simmonds M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ONEIL SIMMONDS M.D (NPI 1801195912) is an individual orthopaedic surgery provider in Los Angeles, California, licensed in California (A100364) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS and is a graduate of Howard University College Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
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. John Oneil Simmonds 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
4Medicare enrollment records show John Simmonds reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Burbank, CA 91506
- Reassigned Medicare billing, California enrollment
- 50 clinicians in this Medicare group
Wilmington, CA 90744
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
Ontario, CA 91764
- Reassigned Medicare billing, California enrollment
- 27 clinicians in this Medicare group
Petaluma, CA 94952
- Reassigned Medicare billing, California enrollment
- 37 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 18
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 90025 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.
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 John Simmonds's NPI number?
The NPI number for John Simmonds is 1801195912. It was assigned to this individual provider in the NPPES registry on March 15, 2011.
Where is John Simmonds located?
John Simmonds practices at 11901 Santa Monica Blvd Ste 620, Los Angeles, CA 90025. The listed phone number is (310) 614-2663.
What is John Simmonds's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is John Simmonds enrolled in Medicare?
Yes. John Simmonds 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 John Simmonds's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Simmonds reassigns Medicare benefits to 4 organizations: West Coast Wound And Skin Care Inc (Burbank, CA), Harbor Comprehensive Health Inc (Wilmington, CA), Wound Healing Care Specialists, Inc. (Ontario, CA) and Wound MD PC (Petaluma, CA). 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 John Simmonds'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 John Simmonds was last updated on February 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. John Oneil Simmonds, M.D · NPI 1801195912
Orthopaedic Surgery physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 15, 2011.
## Identity
- **NPI:** 1801195912 (Entity type: Individual)
- **Enumerated:** March 15, 2011
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** A100364 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11901 SANTA MONICA BLVD STE 620, Los Angeles, CA 90025-5189
- **Phone:** (310) 614-2663
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): West Coast Wound And Skin Care Inc (NPI 1437675980, Burbank, CA); Harbor Comprehensive Health Inc (NPI 1093000606, Wilmington, CA); Wound Healing Care Specialists, Inc. (NPI 1306317961, Ontario, CA); Wound MD PC (NPI 1942606744, Petaluma, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Howard University College Of Medicine, class of 2001
## Record status
- **NPPES last updated:** February 26, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1801195912) · Data from the CMS NPPES public registry.