JEFFERY R. MUSKETT MD
NPI 1326196221
Pediatrics in Fontana, CA

Active since January 08, 2007PECOS Enrolled
9961 SIERRA AVE, FONTANA, CA 92335(909) 427-3910 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Jeffery R. Muskett Md NPPES

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

JEFFERY R. MUSKETT MD (NPI 1326196221) is an individual pediatrics provider in Fontana, California, licensed in California (A74240) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326196221
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameJEFFERY R. MUSKETTCredential: MD
Location Address9961 SIERRA AVEFontana, CA 92335-6720
Mailing Address9961 Sierra AveFontana, CA 92335-6720 · (909) 427-3910
Sole ProprietorNo
Enumeration DateJanuary 8, 2007
Last NPPES UpdateNovember 29, 2021
✔ NPI 1326196221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A74240
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
9961 SIERRA AVE, Fontana, CA 92335

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jeffery R. Muskett 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 Jeffery Muskett reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 5,228 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 92335 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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 20

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

Physical Therapist
9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335
Pediatrics
9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335
Pharmacist
9961 SIERRA AVE
FONTANA, CA 92335
Pathology (Dermatopathology)
9961 SIERRA AVE
FONTANA, CA 92335
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335

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 Jeffery Muskett's NPI number?

The NPI number for Jeffery Muskett is 1326196221. It was assigned to this individual provider in the NPPES registry on January 8, 2007.

Where is Jeffery Muskett located?

Jeffery Muskett practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-3910.

What is Jeffery Muskett's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Jeffery Muskett enrolled in Medicare?

Yes. Jeffery Muskett is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jeffery Muskett's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jeffery Muskett reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Jeffery Muskett'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 Jeffery Muskett was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.