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JOSEPH MAHALLI
NPI 1023676376
Internal Medicine - Nephrology in Lancaster, CA

Active since June 02, 2019PECOS EnrolledAccepts Medicare Assignment
1759 W AVENUE J STE 101, LANCASTER, CA 93534(661) 948-1388(661) 948-1223 Get Directions Write a Review

NPPES record last updated: January 15, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Joseph Mahalli NPPES

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

JOSEPH MAHALLI (NPI 1023676376) is an individual nephrology provider in Lancaster, California, licensed in California (20A19937) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1023676376
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameJOSEPH MAHALLI
Location Address1759 W AVENUE J STE 101Lancaster, CA 93534-2703
Mailing AddressPo Box 2768Lancaster, CA 93539-2768 · (661) 948-1388 · Fax (661) 948-1223
Phone(661) 948-1388
Fax(661) 948-1223
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJune 2, 2019
Last NPPES UpdateJanuary 15, 2025
NPPES CertifiedJanuary 15, 2025
✔ NPI 1023676376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · 20A19937
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1759 W AVENUE J STE 101, Lancaster, CA 93534
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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

Joseph Mahalli 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.

PECOS PAC ID1254853682
PECOS Enrollment IDI20250314002299
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 Reassignments

2

Medicare enrollment records show Joseph Mahalli reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Antelope Valley Nephrology Medical Group, Inc.
Same address
Specialist
1759 W AVENUE J # 101
Lancaster, CA 93534
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1336172949 (661) 948-1388
Physician Affiliate Group Of New York PC
2,431 mi
Dietitian, Registered
506 LENOX AVE
New York, NY 10037
  • Reassigned Medicare billing, New York enrollment
  • 2,094 clinicians in this Medicare group
NPI 1013375526 (212) 939-2467

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 93534 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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.

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 Joseph Mahalli's NPI number?

The NPI number for Joseph Mahalli is 1023676376. It was assigned to this individual provider in the NPPES registry on June 2, 2019.

Where is Joseph Mahalli located?

Joseph Mahalli practices at 1759 W Avenue J Ste 101, Lancaster, CA 93534. The listed phone number is (661) 948-1388.

What is Joseph Mahalli's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Joseph Mahalli enrolled in Medicare?

Yes. Joseph Mahalli 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 Joseph Mahalli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Mahalli reassigns Medicare benefits to 2 organizations: Antelope Valley Nephrology Medical Group, Inc. (Lancaster, CA) and Physician Affiliate Group Of New York PC (New York, NY). 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 Joseph Mahalli'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 Joseph Mahalli was last updated on January 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.