DR. WILLIAM G MORRISSEY MD
NPI 1619084027
Obstetrics & Gynecology in Green Bay, WI

Q: What is William Morrissey's NPI number?

The NPI number for William Morrissey is 1619084027. It was assigned to this individual provider in the NPPES registry on August 23, 2006.

Q: What is William Morrissey's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for William Morrissey was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since August 23, 2006PECOS EnrolledAccepts Medicare Assignment

2845 GREENBRIER RD, #420, GREEN BAY, WI 54308(920) 288-8400(920) 288-8461 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 7, 2023, Nov 24, 2021 (2 updates tracked since 2021).

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About Dr. William G Morrissey Md NPPES

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

DR. WILLIAM G MORRISSEY MD (NPI 1619084027) is an individual obstetrics & gynecology provider in Green Bay, Wisconsin, licensed in Wisconsin (43374) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora Baycare Medical Ctr, and is a graduate of Rush Medical College Of Rush University (1997).

NPPES Registry Identity

NPI1619084027

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. WILLIAM G MORRISSEYCredential: MD

Location Address2845 GREENBRIER RD, #420Green Bay, WI 54308-8900

Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250

Phone(920) 288-8400

Fax(920) 288-8461

Sole ProprietorNo

Medical School CMSRush Medical College Of Rush UniversityGraduated 1997

Enumeration DateAugust 23, 2006

Last NPPES UpdateJuly 24, 20252 updates tracked since enumeration

NPPES CertifiedJuly 24, 2025

✔ NPI 1619084027 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in WI · 43374

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

2845 GREENBRIER RD, Green Bay, WI 54308

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Other Identifiers 1

Medicaid34094100WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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

Dr. William G Morrissey Md 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 ID8022050269

PECOS Enrollment IDI20050526000901

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

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

Aurora Baycare Medical Ctr

Acute Care Hospitals · Green Bay, WI

5/5 CMS rating

OwnershipProprietary

CMS Certification Number520193

Location2845 Greenbrier RdGreen Bay, WI 54311 · Brown County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54308 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

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$67.37 typical visit price

range $17.40 – $133.76

Typical copayment $16.84 (range $4.35 – $33.44)

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.

MR. PETER B MICHON CRNA

Nurse Anesthetist, Certified Registered

2845 GREENBRIER RD
GREEN BAY, WI 54308

Brown County (920) 288-3388

DR. MICHAEL J BROCKMAN MD

Obstetrics & Gynecology

2845 GREENBRIER RD, #420
GREEN BAY, WI 54308

Brown County (920) 288-8400

DR. JOHN CORNELIUS GALLAGHER MD

Obstetrics & Gynecology

2845 GREENBRIER RD, #480
GREEN BAY, WI 54308

Brown County (920) 288-8400

DR. JAMES L NAPIER JR MD

Psychiatry & Neurology (Neurology)

2845 GREENBRIER RD, #140
GREEN BAY, WI 54308

Brown County (920) 288-8100

DR. PETER V GAPINSKI MD

Surgery

2845 GREENBRIER RD, #120
GREEN BAY, WI 54308

Brown County (920) 288-8100

DR. LEAH A NITKE DO

Internal Medicine

2845 GREENBRIER RD, #130
GREEN BAY, WI 54308

Brown County (920) 288-8100

DR. JOHN ERIC STEVENSON MD

Internal Medicine

2845 GREENBRIER RD, #130
GREEN BAY, WI 54308

Brown County (920) 288-8100

DR. JOHN W UTRIE DO

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)

2845 GREENBRIER RD, #450
GREEN BAY, WI 54308

Brown County (920) 288-8510

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 Morrissey's NPI number?

The NPI number for William Morrissey is 1619084027. It was assigned to this individual provider in the NPPES registry on August 23, 2006.

Where is William Morrissey located?

William Morrissey practices at 2845 Greenbrier Rd #420, Green Bay, WI 54308. The listed phone number is (920) 288-8400.

What is William Morrissey's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is William Morrissey enrolled in Medicare?

Yes. William Morrissey 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 Morrissey accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Quartz and 1 other insurer list William Morrissey 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 Morrissey affiliated with any hospitals?

According to CMS data, William Morrissey is affiliated with Aurora Baycare Medical Ctr.

When was this NPI record last updated?

The NPPES record for William Morrissey was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.