DR. STEVEN J LALLISS MD.
NPI 1437130655
Hospitalist in Jackson, CA
About Dr. Steven J Lalliss Md. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN J LALLISS MD. (NPI 1437130655) is an individual hospitalist provider in Jackson, California, licensed in California (C142801) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Accepted Insurance
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. Steven J Lalliss 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 Reassignments
4Medicare enrollment records show Steven Lalliss reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- 266 clinicians in this Medicare group
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Sutter Valley Medical Foundation
- 3,056 clinicians in this Medicare group
Los Banos, CA 93635
- Reassigned Medicare billing, California enrollment
- 91 clinicians in this Medicare group
King City, CA 93930
- Reassigned Medicare billing, California enrollment
- 156 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 2
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 95642 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
JACKSON, CA 95642
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 Steven Lalliss's NPI number?
The NPI number for Steven Lalliss is 1437130655. It was assigned to this individual provider in the NPPES registry on November 7, 2005.
Where is Steven Lalliss located?
Steven Lalliss practices at 100 Mission Blvd Ste 2800, Jackson, CA 95642. The listed phone number is (209) 257-7615.
What is Steven Lalliss's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Steven Lalliss enrolled in Medicare?
Yes. Steven Lalliss 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 Steven Lalliss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Lalliss reassigns Medicare benefits to 4 organizations: Acute Care Surgery Medical Group, Inc. (Sacramento, CA), Sutter Medical Foundation (Sacramento, CA), Surgical Affiliates Of California (Los Banos, CA) and Southern Monterey County Memorial Hospital (King City, 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 Steven Lalliss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steven Lalliss accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Steven Lalliss as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Steven Lalliss was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 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.
# Dr. Steven J Lalliss, MD. · NPI 1437130655
Hospitalist physician in Jackson, California. Individual provider, active in the CMS NPPES registry since November 7, 2005.
## Identity
- **NPI:** 1437130655 (Entity type: Individual)
- **Enumerated:** November 7, 2005
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** C142801 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MISSION BLVD STE 2800, Jackson, CA 95642-2536
- **Phone:** (209) 257-7615
## 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): Acute Care Surgery Medical Group, Inc. (NPI 1700069549, Sacramento, CA); Sutter Medical Foundation (NPI 1942524095, Sacramento, CA); Surgical Affiliates Of California (NPI 1932440781, Los Banos, CA); Southern Monterey County Memorial Hospital (NPI 1114917564, King City, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** September 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437130655) · Data from the CMS NPPES public registry.