IAN JEREMIAH JARIN MD
NPI 1952989535
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Orange, CA
About Ian Jeremiah Jarin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IAN JEREMIAH JARIN MD (NPI 1952989535) is an individual orthopaedic surgery of the spine provider in Orange, California, licensed in California (A206566) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2021).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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
Ian Jeremiah Jarin Md 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 Reassignment
Medicare enrollment records show Ian Jarin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 61 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.
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Ian Jarin's NPI number?
The NPI number for Ian Jarin is 1952989535. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Ian Jarin located?
Ian Jarin practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-7890.
What is Ian Jarin's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.
Is Ian Jarin enrolled in Medicare?
Yes. Ian Jarin 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 Ian Jarin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Jarin reassigns Medicare benefits to Regents Of The University Of California (Orange, 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 Ian Jarin'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 Ian Jarin was last updated on August 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.
# Ian Jeremiah Jarin, MD · NPI 1952989535
Orthopaedic Surgery of the Spine physician in Orange, California. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1952989535 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Orthopaedic Surgery - Orthopaedic Surgery of the Spine · taxonomy 207XS0117X
- **State license:** A206566 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-7890
## 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:** Regents Of The University Of California (NPI 1356399703, Orange, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers R W Johnson Medical School, class of 2021
## Record status
- **NPPES last updated:** August 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1952989535) · Data from the CMS NPPES public registry.