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MR. WILLIAM CHRISTIAN GRILLO PA-C
NPI 1497413710
Physician Assistant in Duluth, MN

Active since December 03, 2021PECOS EnrolledAccepts Medicare Assignment
400 E 3RD ST, DULUTH, MN 55805(218) 786-8364 Get Directions Write a Review

NPPES record last updated: November 21, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 21, 2023, Dec 3, 2021 (2 updates tracked since 2021).

About Mr. William Christian Grillo Pa-c NPPES

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

MR. WILLIAM CHRISTIAN GRILLO PA-C (NPI 1497413710) is an individual physician assistant in Duluth, Minnesota, licensed in Minnesota (13889) and active in the NPI registry since December 2021. He is enrolled in Medicare PECOS, is affiliated with Essentia Health St Mary's Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1497413710
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. WILLIAM CHRISTIAN GRILLOCredential: PA-C
Location Address400 E 3RD STDuluth, MN 55805-1951
Mailing Address400 E 3rd StDuluth, MN 55805-1951 · (218) 786-8364
Phone(218) 786-8364
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateDecember 3, 2021
Last NPPES UpdateNovember 21, 20232 updates tracked since enumeration
NPPES CertifiedNovember 21, 2023
✔ NPI 1497413710 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 MN · 13889
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.
400 E 3RD ST, Duluth, MN 55805
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Medica, Security Health Plan.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

Mr. William Christian Grillo 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 ID1759772932
PECOS Enrollment IDI20211222002626, I20240329000181
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.

Hospital Affiliations CMS Care Compare 3

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

Essentia Health St Mary's Medical Center

Acute Care Hospitals · Duluth, MN
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240002
Location402 East Second StreetDuluth, MN 55805 · St. Louis County
Emergency services Birthing friendly

Essentia Health Duluth

Acute Care Hospitals · Duluth, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240019
Location502 East Second StreetDuluth, MN 55805 · St. Louis County
Birthing friendly

Grand Itasca Clinic And Hospital

Acute Care Hospitals · Grand Rapids, MN
OwnershipVoluntary non-profit - Private
CMS Certification Number240064
Location1601 Golf Course RoadGrand Rapids, MN 55744 · Itasca County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55805 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
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$69.74 typical visit price
range $18.32 – $138.04
Typical copayment $17.43 (range $4.58 – $34.51)
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 20

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

CHRISTIAN CONNER RN, CRNA
Nurse Anesthetist, Certified Registered
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-4150
JORDAN TICHENOR
Internal Medicine (Infectious Disease)
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-3737
MOLLY B DWYER APRN, CNP
Nurse Practitioner (Psychiatric/Mental Health)
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364
AMY MARIE LARSON MD
Hospitalist
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364
BRUCE JAMES DERAUF
Radiology (Diagnostic Radiology)
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364
NIZAR NAJIB SALEH
Internal Medicine (Cardiovascular Disease)
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364
DIANE MAE KOLQUIST
Clinical Nurse Specialist (Medical-Surgical)
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364
GINA MARIE SLIPKA-MARINOS
Internal Medicine
400 E 3RD ST
DULUTH, MN 55805
St. Louis County (218) 786-8364

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 William Grillo's NPI number?

The NPI number for William Grillo is 1497413710. It was assigned to this individual provider in the NPPES registry on December 3, 2021.

Where is William Grillo located?

William Grillo practices at 400 E 3rd St, Duluth, MN 55805. The listed phone number is (218) 786-8364.

What is William Grillo's specialty?

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

Is William Grillo enrolled in Medicare?

Yes. William Grillo 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 William Grillo accept?

Health plans from HealthPartners, Medica and Security Health Plan list William Grillo 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 William Grillo affiliated with any hospitals?

According to CMS data, William Grillo is affiliated with Essentia Health St Mary's Medical Center, Essentia Health Duluth and Grand Itasca Clinic And Hospital.

When was this NPI record last updated?

The NPPES record for William Grillo was last updated on November 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.