MRS. JENNIFER LYNN HEMMINGER MSW
NPI 1639200272
Social Worker - Clinical in Los Angeles, CA

Active since March 07, 2007PECOS Enrolled
1721 GRIFFIN AVE, LOS ANGELES, CA 90031(323) 221-4134 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mrs. Jennifer Lynn Hemminger Msw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. JENNIFER LYNN HEMMINGER MSW (NPI 1639200272) is an individual clinical provider in Los Angeles, California, licensed in California (ASW 15678) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639200272
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. JENNIFER LYNN HEMMINGERCredential: MSW
Location Address1721 GRIFFIN AVELos Angeles, CA 90031-3062
Mailing AddressPo Box 14284Torrance, CA 90503-8284 · (310) 847-9045
Sole ProprietorYes
Enumeration DateMarch 7, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1639200272 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · ASW 15678
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1721 GRIFFIN AVE, Los Angeles, CA 90031

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Jennifer Lynn Hemminger Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Jennifer Hemminger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
18144 SECO ST
Jamestown, CA 95327
  • Reassigned Medicare billing, Texas enrollment
  • 17 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90031 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $62.96 – $187.60
Typical copayment $0.00 (range $15.74 – $46.90)
Most-billed visit code NA
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Case Manager/Care Coordinator
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Student in an Organized Health Care Education/Training Program
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Marriage & Family Therapist
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Case Manager/Care Coordinator
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Marriage & Family Therapist
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Social Worker (Clinical)
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Rehabilitation Practitioner
1721 GRIFFIN AVE
LOS ANGELES, CA 90031
Student in an Organized Health Care Education/Training Program
1721 GRIFFIN AVE
LOS ANGELES, CA 90031

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 Jennifer Hemminger's NPI number?

The NPI number for Jennifer Hemminger is 1639200272. It was assigned to this individual provider in the NPPES registry on March 7, 2007.

Where is Jennifer Hemminger located?

Jennifer Hemminger practices at 1721 Griffin Ave, Los Angeles, CA 90031. The listed phone number is (323) 221-4134.

What is Jennifer Hemminger's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Jennifer Hemminger enrolled in Medicare?

Yes. Jennifer Hemminger is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jennifer Hemminger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Hemminger reassigns Medicare benefits to Mathiesen Memorial Health Clinic (Jamestown, 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 Jennifer Hemminger'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 Jennifer Hemminger was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.