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MCKENNA WILLIAMS
NPI 1821979857
Physician Assistant in Leominster, MA

Active since September 08, 2025PECOS Enrolled
20 COMMERCIAL RD, LEOMINSTER, MA 01453(978) 798-6896(978) 798-6897 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 4, 2026, Jan 23, 2026, Sep 8, 2025 (3 updates tracked since 2025).

About Mckenna Williams NPPES

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

MCKENNA WILLIAMS (NPI 1821979857) is an individual physician assistant in Leominster, Massachusetts, licensed in Massachusetts (PA102601) and active in the NPI registry since September 2025. She is enrolled in Medicare PECOS, maintains a secondary practice location in Pelham, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1821979857
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMCKENNA WILLIAMS
Location Address20 COMMERCIAL RDLeominster, MA 01453-3339
Mailing Address360 Us Highway 1 Byp Unit 102Portsmouth, NH 03801-7105 · (603) 410-6700 · Fax (603) 309-9601
Phone(978) 798-6896
Fax(978) 798-6897
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateSeptember 8, 2025
Last NPPES UpdateJune 4, 20263 updates tracked since enumeration
NPPES CertifiedJune 4, 2026
✔ NPI 1821979857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MA · PA102601
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
20 COMMERCIAL RD, Leominster, MA 01453
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Secondary Practice Location 1

Location 19 Mulberry LnPelham, NH 03076-2943 · Phone (603) 508-2246

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mckenna Williams is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4385115872
PECOS Enrollment IDI20260605000396
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01453 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
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 2

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

MARY LYNN MILLER M.D.
Ophthalmology
20 COMMERCIAL RD
LEOMINSTER, MA 01453
Worcester County (978) 435-6100
MUNA AHMAD M.D.
Ophthalmology
20 COMMERCIAL RD
LEOMINSTER, MA 01453
Worcester County (978) 534-6100

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 Mckenna Williams's NPI number?

The NPI number for Mckenna Williams is 1821979857. It was assigned to this individual provider in the NPPES registry on September 8, 2025.

Where is Mckenna Williams located?

Mckenna Williams practices at 20 Commercial Rd, Leominster, MA 01453. The listed phone number is (978) 798-6896.

What is Mckenna Williams's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Mckenna Williams enrolled in Medicare?

Yes. Mckenna Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mckenna Williams was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.