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GREGORY ALEXANDER ZILO PA-C
NPI 1508303926
Physician Assistant in Grand Rapids, MI

Active since January 24, 2017PECOS Enrolled
96.27/100
CMS Quality Rating
100 MICHIGAN ST NE, GRAND RAPIDS, MI 49503(616) 391-1680 Get Directions Write a Review

NPPES record last updated: January 24, 2017. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Gregory Alexander Zilo Pa-c NPPES

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

GREGORY ALEXANDER ZILO PA-C (NPI 1508303926) is an individual physician assistant in Grand Rapids, Michigan, licensed in Michigan (5601008095) and active in the NPI registry since January 2017. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508303926
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameGREGORY ALEXANDER ZILOCredential: PA-C
Location Address100 MICHIGAN ST NEGrand Rapids, MI 49503-2560
Mailing Address2537 Momentum PlChicago, IL 60689-5325 · (616) 975-1845 · Fax (616) 285-0846
Phone(616) 391-1680
Sole ProprietorNo
Enumeration DateJanuary 24, 2017
✔ NPI 1508303926 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 MI · 5601008095
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.
100 MICHIGAN ST NE, Grand Rapids, MI 49503
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Alexander Zilo Pa-c 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.

Areas of Expertise CMS Part B claims 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
84 services82 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
57 services56 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality87.89
Improvement Activities40

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.

MAUREEN TAN PEDRES M.D.
Internal Medicine
100 MICHIGAN ST NE, SUITE A721
GRAND RAPIDS, MI 49503
Kent County (616) 391-3139
MATTHEW H ARMSTRONG MD
Anesthesiology
100 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 391-1510
ALINE DE QUADROS TEIXEIRA MD
Internal Medicine
100 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 391-3139
DR. LINDSEY DANIELLE CONRADO PT, DPT
Physical Therapist
100 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (161) 639-1177
DANIEL H. ROBINSON D.O.
Anesthesiology
100 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 391-1510
MARK GREENWOOD DO
Emergency Medicine
100 MICHIGAN ST NE, MC 71
GRAND RAPIDS, MI 49503
Kent County (616) 391-5310
RAYMOND SCUREK MD
Emergency Medicine
100 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 391-1680
MRS. RACHEL LEIGH VANSTRIEN PA-C
Physician Assistant
100 MICHIGAN ST NE, SUITE 8861
GRAND RAPIDS, MI 49503
Kent County (616) 391-0800

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 Zilo's NPI number?

The NPI number for Gregory Zilo is 1508303926. It was assigned to this individual provider in the NPPES registry on January 24, 2017.

Where is Gregory Zilo located?

Gregory Zilo practices at 100 Michigan St NE, Grand Rapids, MI 49503. The listed phone number is (616) 391-1680.

What is Gregory Zilo's specialty?

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

Is Gregory Zilo enrolled in Medicare?

Yes. Gregory Zilo is registered in the Medicare PECOS enrollment system.

What insurance does Gregory Zilo accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Gregory Zilo 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.

When was this NPI record last updated?

The NPPES record for Gregory Zilo was last updated on January 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.