STEPHEN MAXWELL CERNI DO
NPI 1720550783
Emergency Medicine in Bethlehem, PA
About Stephen Maxwell Cerni Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN MAXWELL CERNI DO (NPI 1720550783) is an individual emergency medicine provider in Bethlehem, Pennsylvania, licensed in Pennsylvania (OT020236) and active in the NPI registry since December 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Pomona, and is a graduate of Other (2020).
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 and accepts Medicare assignment
Stephen Maxwell Cerni 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
5Medicare enrollment records show Stephen Cerni reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Victorville, CA 92395
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Montclair, CA 91763
- Reassigned Medicare billing, California enrollment
- 98 clinicians in this Medicare group
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 99 clinicians in this Medicare group
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
San Dimas, CA 91773
- Reassigned Medicare billing, California enrollment
- 75 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 5
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 18015 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.
BETHLEHEM, PA 18015
BETHLEHEM, PA 18015
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 Stephen Cerni's NPI number?
The NPI number for Stephen Cerni is 1720550783. It was assigned to this individual provider in the NPPES registry on December 31, 2018.
Where is Stephen Cerni located?
Stephen Cerni practices at 801 Ostrum St, Bethlehem, PA 18015. The listed phone number is (484) 526-4000.
What is Stephen Cerni's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Stephen Cerni enrolled in Medicare?
Yes. Stephen Cerni 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 Stephen Cerni's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Cerni reassigns Medicare benefits to 5 organizations: Ignite Emergency Physicians A Medical Corporation (Victorville, CA), Montclair Emergency Medical Associates (Montclair, CA), Chino Emergency Medical Associates, Inc. (Chino, CA), Southern California Permanente Medical Group (San Diego, CA) and San Dimas Emergency Medical Associates Inc. (San Dimas, 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 Stephen Cerni'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 Stephen Cerni was last updated on May 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Stephen Maxwell Cerni, DO · NPI 1720550783
Emergency Medicine physician in Bethlehem, Pennsylvania. Individual provider, active in the CMS NPPES registry since December 31, 2018.
## Identity
- **NPI:** 1720550783 (Entity type: Individual)
- **Enumerated:** December 31, 2018
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OT020236 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 801 OSTRUM ST, Bethlehem, PA 18015-1000
- **Phone:** (484) 526-4000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Ignite Emergency Physicians A Medical Corporation (NPI 1437918307, Victorville, CA); Montclair Emergency Medical Associates (NPI 1316044696, Montclair, CA); Chino Emergency Medical Associates, Inc. (NPI 1013282029, Chino, CA); Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); San Dimas Emergency Medical Associates Inc. (NPI 1720239460, San Dimas, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** May 26, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1720550783) · Data from the CMS NPPES public registry.