MAILEE JEAN HESS MD
NPI 1396011565
Internal Medicine - Geriatric Medicine in Torrance, CA

Active since March 31, 2012PECOS Enrolled
1000 W CARSON ST # 459, TORRANCE, CA 90502(310) 222-6532 Get Directions Write a Review

NPPES record last updated: January 18, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 18, 2018, Oct 19, 2017 (2 updates tracked since 2017).

About Mailee Jean Hess Md NPPES

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

MAILEE JEAN HESS MD (NPI 1396011565) is an individual geriatric medicine provider in Torrance, California, licensed in California (A135123) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1396011565
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameMAILEE JEAN HESSCredential: MD
Location Address1000 W CARSON ST # 459Torrance, CA 90502-2004
Mailing Address1000 W Carson StTorrance, CA 90502-2004 · (310) 222-6535
Sole ProprietorNo
Enumeration DateMarch 31, 2012
Last NPPES UpdateJanuary 18, 20182 updates tracked since enumeration
✔ NPI 1396011565 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in CA · A135123
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License A135123 (CA)
1000 W CARSON ST # 459, Torrance, CA 90502

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mailee Jean Hess Md 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 Mailee Hess reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

General Acute Care Hospital
1000 W CARSON ST # 2
Torrance, CA 90502
  • Reassigned Medicare billing, California enrollment
  • 1,939 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 90502 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
1000 W CARSON ST # 459
TORRANCE, CA 90502
Internal Medicine
1000 W CARSON ST # 459
TORRANCE, CA 90502
Emergency Medicine
1000 W CARSON ST # 459
TORRANCE, CA 90502
Internal Medicine
1000 W CARSON ST # 459
TORRANCE, CA 90502

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 Mailee Hess's NPI number?

The NPI number for Mailee Hess is 1396011565. It was assigned to this individual provider in the NPPES registry on March 31, 2012.

Where is Mailee Hess located?

Mailee Hess practices at 1000 W Carson St # 459, Torrance, CA 90502. The listed phone number is (310) 222-6532.

What is Mailee Hess's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Mailee Hess enrolled in Medicare?

Yes. Mailee Hess is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mailee Hess's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mailee Hess reassigns Medicare benefits to County Of Los Angeles (Torrance, 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 Mailee Hess'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 Mailee Hess was last updated on January 18, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.