STEPHAN HAMBAZ MD
NPI 1972918001
Internal Medicine - Infectious Disease in Tulsa, OK
About Stephan Hambaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHAN HAMBAZ MD (NPI 1972918001) is an individual infectious disease provider in Tulsa, Oklahoma, licensed in Oklahoma (34476) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS and maintains a secondary practice location in Scranton.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Stephan Hambaz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Stephan Hambaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tulsa, OK 74137
- Reassigned Medicare billing, Oklahoma enrollment
- 62 clinicians in this Medicare group
Eldersburg, MD 21784
- Reassigned Medicare billing, Maryland enrollment
- 664 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 4
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 74104 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.
TULSA, OK 74104
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 Stephan Hambaz's NPI number?
The NPI number for Stephan Hambaz is 1972918001. It was assigned to this individual provider in the NPPES registry on June 27, 2014.
Where is Stephan Hambaz located?
Stephan Hambaz practices at 1145 S Utica Ave Ste 460, Tulsa, OK 74104. The listed phone number is (918) 579-5749.
What is Stephan Hambaz's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Stephan Hambaz enrolled in Medicare?
Yes. Stephan Hambaz is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Stephan Hambaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephan Hambaz reassigns Medicare benefits to 2 organizations: Thi Specialists LLC (Tulsa, OK) and Sinai Hospital Of Baltimore Inc (Eldersburg, MD). 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 Stephan Hambaz'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 Stephan Hambaz was last updated on July 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.