GREGORY J MUSSELMAN PA-C
NPI 1659829513
Physician Assistant - Medical in Ontario, CA

Active since September 20, 2016PECOS EnrolledAccepts Medicare Assignment
3550 E PHILADELPHIA ST STE 150, ONTARIO, CA 91761(909) 773-0022 Get Directions Write a Review

NPPES record last updated: September 26, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 26, 2018, Sep 20, 2016 (2 updates tracked since 2016).

About Gregory J Musselman Pa-c NPPES

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

GREGORY J MUSSELMAN PA-C (NPI 1659829513) is an individual medical provider in Ontario, California and active in the NPI registry since September 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Rancho Cucamonga, and is a graduate of Other (2016).

NPPES Registry Identity

NPI1659829513
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameGREGORY J MUSSELMANCredential: PA-C
Location Address3550 E PHILADELPHIA ST STE 150Ontario, CA 91761
Mailing Address3550 E Philadelphia St Ste 150Ontario, CA 91761-2963 · (909) 781-6015
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateSeptember 20, 2016
Last NPPES UpdateSeptember 26, 20182 updates tracked since enumeration
NPI 1659829513 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
3550 E PHILADELPHIA ST STE 150, Ontario, CA 91761

Secondary Practice Location 1

Location 19471 Haven Ave Ste 140Rancho Cucamonga, CA 91730-5818 · Phone (909) 474-2333

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Gregory J Musselman Pa-c 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 ID8123398161
PECOS Enrollment IDI20170724002629
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.

Other Providers at the Same Location NPPES 2

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

Physician Assistant
3550 E PHILADELPHIA ST STE 150
ONTARIO, CA 91761
Physician Assistant
3550 E PHILADELPHIA ST STE 150
ONTARIO, CA 91761

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 Gregory Musselman's NPI number?

The NPI number for Gregory Musselman is 1659829513. It was assigned to this individual provider in the NPPES registry on September 20, 2016.

Where is Gregory Musselman located?

Gregory Musselman practices at 3550 E Philadelphia St Ste 150, Ontario, CA 91761. The listed phone number is (909) 773-0022.

What is Gregory Musselman's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Gregory Musselman enrolled in Medicare?

Yes. Gregory Musselman 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.

When was this NPI record last updated?

The NPPES record for Gregory Musselman was last updated on September 26, 2018. 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.