LESLIE HAMMER ASW
NPI 1982005013
Counselor in Petaluma, CA
About Leslie Hammer Asw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LESLIE HAMMER ASW (NPI 1982005013) is an individual counselor in Petaluma, California, licensed in California (69157) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS.
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 (PECOS)
Leslie Hammer Asw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Leslie Hammer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 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.
PETALUMA, CA 94952
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 Leslie Hammer's NPI number?
The NPI number for Leslie Hammer is 1982005013. It was assigned to this individual provider in the NPPES registry on September 8, 2014.
Where is Leslie Hammer located?
Leslie Hammer practices at 1500 Petaluma Blvd S, Petaluma, CA 94952. The listed phone number is (831) 905-4585.
What is Leslie Hammer's specialty?
The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.
Is Leslie Hammer enrolled in Medicare?
Yes. Leslie Hammer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Leslie Hammer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Hammer reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, 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 Leslie Hammer'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 Leslie Hammer was last updated on March 28, 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.
# Leslie Hammer, ASW · NPI 1982005013
Counselor provider in Petaluma, California. Individual provider, active in the CMS NPPES registry since September 8, 2014.
## Identity
- **NPI:** 1982005013 (Entity type: Individual)
- **Enumerated:** September 8, 2014
- **Primary specialty:** Counselor · taxonomy 101Y00000X
- **State license:** 69157 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1500 PETALUMA BLVD S, Petaluma, CA 94952-5545
- **Phone:** (831) 905-4585
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PC (NPI 1154994846, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 28, 2019
---
Source: [NPI Profile](https://npiprofile.com/npi/1982005013) · Data from the CMS NPPES public registry.