JOSEPH GREG WILLIAMSON PA
NPI 1386651933
Physician Assistant - Surgical in Anderson, IN

Active since August 02, 2006PECOS EnrolledAccepts Medicare Assignment
2610 ENTERPRISE DR, ANDERSON, IN 46013(765) 683-4400(765) 213-3713 Get Directions Write a Review

NPPES record last updated: January 16, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Joseph Greg Williamson Pa NPPES

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

JOSEPH GREG WILLIAMSON PA (NPI 1386651933) is an individual surgical provider in Anderson, Indiana, licensed in Indiana (10000604A) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension St Vincent Anderson, and maintains a secondary practice location in Fishers.

NPPES Registry Identity

NPI1386651933
Entity TypeIndividualMale
Primary Taxonomy363AS0400X
Provider Legal NameJOSEPH GREG WILLIAMSONCredential: PA
Location Address2610 ENTERPRISE DRAnderson, IN 46013-9684
Mailing Address3600 W Bethel AveMuncie, IN 47304-5407 · (800) 622-6575
Fax(765) 213-3713
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateAugust 2, 2006
Last NPPES UpdateJanuary 16, 2025
NPPES CertifiedJanuary 16, 2025
NPI 1386651933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician Assistant · SurgicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AS0400X
License Licensed in IN · 10000604A
Also ListedPhysician AssistantTaxonomy 363A00000X · License 10000604A (IN)
2610 ENTERPRISE DR, Anderson, IN 46013

Secondary Practice Location 1

Location 114300 E 138th Ste BFishers, IN 46037-0051 · Phone (800) 622-6575

Other Identifiers 2

Other970028692IN · Railroad Medicare
Other000000281018IN · Anthem Pin

Accepted Insurance

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

Joseph Greg Williamson Pa 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 ID6103967534
PECOS Enrollment IDI20100224000931
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
132 services22 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
43 services39 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
23 services22 patients
Replacement of knee joint, both sides of knee 27447
A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension St Vincent Anderson

Acute Care Hospitals · Anderson, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150088
Location2015 Jackson StAnderson, IN 46016 · Madison County
Emergency services Birthing friendly

Community Hospital Of Anderson And Madison County

Acute Care Hospitals · Anderson, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150113
Location1515 N Madison AveAnderson, IN 46011 · Madison County
Emergency services Birthing friendly

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.

Orthopaedic Surgery
2610 ENTERPRISE DR
ANDERSON, IN 46013
Specialist/Technologist (Athletic Trainer)
2610 ENTERPRISE DR
ANDERSON, IN 46013
Physical Medicine & Rehabilitation
2610 ENTERPRISE DR
ANDERSON, IN 46013
Orthopaedic Surgery
2610 ENTERPRISE DR
ANDERSON, IN 46013
Nurse Practitioner (Family)
2610 ENTERPRISE DR
ANDERSON, IN 46013
Orthopaedic Surgery
2610 ENTERPRISE DR
ANDERSON, IN 46013
Specialist/Technologist (Athletic Trainer)
2610 ENTERPRISE DR
ANDERSON, IN 46013
Internal Medicine (Sports Medicine)
2610 ENTERPRISE DR
ANDERSON, IN 46013

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 Williamson's NPI number?

The NPI number for Joseph Williamson is 1386651933. It was assigned to this individual provider in the NPPES registry on August 2, 2006.

Where is Joseph Williamson located?

Joseph Williamson practices at 2610 Enterprise Dr, Anderson, IN 46013. The listed phone number is (765) 683-4400.

What is Joseph Williamson's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Surgical, with taxonomy code 363AS0400X.

Is Joseph Williamson enrolled in Medicare?

Yes. Joseph Williamson 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.

What insurance does Joseph Williamson accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Joseph Williamson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Joseph Williamson affiliated with any hospitals?

According to CMS data, Joseph Williamson is affiliated with Ascension St Vincent Anderson and Community Hospital Of Anderson And Madison County.

When was this NPI record last updated?

The NPPES record for Joseph Williamson was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.