DR. CHRISTIAN STEFAN MULLER DO
NPI 1225520059
Family Medicine - Sports Medicine in Rockville Centre, NY
About Dr. Christian Stefan Muller Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTIAN STEFAN MULLER DO (NPI 1225520059) is an individual sports medicine provider in Rockville Centre, New York, licensed in New York (325078-01) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Northern Westchester Hospital, and is a graduate of Touro Un Col Of Osteopathic Medicine, New York (2018).
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. Christian Stefan Muller Do 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
3Medicare enrollment records show Christian Muller reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Merrick, NY 11566
- Reassigned Medicare billing, New York enrollment
- 178 clinicians in this Medicare group
Birmingham, AL 35294
- Reassigned Medicare billing, Alabama enrollment
- 4,494 clinicians in this Medicare group
Birmingham, AL 35249
- Reassigned Medicare billing, Alabama enrollment
- 460 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 19
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Westchester Hospital
Acute Care Hospitals · Mount Kisco, NYPhelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYHudson Valley Hospital Center
Acute Care Hospitals · Cortlandt Manor, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11570 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCKVILLE CENTRE, NY 11570
ROCKVILLE CENTRE, NY 11570
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 Christian Muller's NPI number?
The NPI number for Christian Muller is 1225520059. It was assigned to this individual provider in the NPPES registry on June 6, 2018.
Where is Christian Muller located?
Christian Muller practices at 36 Lincoln Ave, Rockville Centre, NY 11570. The listed phone number is (516) 231-8603.
What is Christian Muller's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Sports Medicine, with taxonomy code 207QS0010X.
Is Christian Muller enrolled in Medicare?
Yes. Christian Muller 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 Christian Muller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christian Muller reassigns Medicare benefits to 3 organizations: True North Medical Group PC (Merrick, NY), University Of Alabama Health Services Foundation, PC (Birmingham, AL) and University Of Alabama At Birmingham (Birmingham, AL). 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 Christian Muller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christian Muller affiliated with any hospitals?
According to CMS data, Christian Muller is affiliated with Northern Westchester Hospital, Phelps Hospital and Hudson Valley Hospital Center.
When was this NPI record last updated?
The NPPES record for Christian Muller was last updated on August 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.