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DR. ROBERT MICHAEL ROCK JR. MD
NPI 1073635157
Pediatrics - Neonatal-Perinatal Medicine in Green Bay, WI

Active since April 06, 2007PECOS Enrolled
835 S. VANBUREN ST., GREEN BAY, WI 54301(920) 433-8360(920) 431-3163 Get Directions Write a Review

NPPES record last updated: August 18, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Robert Michael Rock Jr. Md NPPES

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

DR. ROBERT MICHAEL ROCK JR. MD (NPI 1073635157) is an individual neonatal-perinatal medicine provider in Green Bay, Wisconsin, licensed in Wisconsin (54182) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073635157
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDR. ROBERT MICHAEL ROCK JR.Credential: MD
Location Address835 S. VANBUREN ST.Green Bay, WI 54301
Mailing AddressP.o. Box 57, Neonatal ConsultantsDepere, WI 54115 · (920) 983-9401 · Fax (920) 983-9402
Phone(920) 433-8360
Fax(920) 431-3163
Sole ProprietorNo
Enumeration DateApril 6, 2007
Last NPPES UpdateAugust 18, 2010
✔ NPI 1073635157 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in WI · 54182
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
835 S. VANBUREN ST., Green Bay, WI 54301
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Dean Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert Michael Rock Jr. Md 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Robert Rock reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aspirus Wausau Hospital Inc
62 mi
Clinic/Center
1660 SUE ALAN DR
Wittenberg, WI 54499
  • Reassigned Medicare billing, Wisconsin enrollment
  • 633 clinicians in this Medicare group
NPI 1467782821 (715) 253-2110
Aspirus Medical Group, Inc.
88 mi
Podiatric
3200 WESTHILL DR STE 2200
Wausau, WI 54401
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Aspirus Riverview Hospital & Clinics Inc
  • 397 clinicians in this Medicare group
NPI 1689976474 (715) 675-3231

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES

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

GINA M PEREZ NP
Nurse Practitioner (Critical Care Medicine)
835 S. VANBUREN ST.
GREEN BAY, WI 54301
Brown County (920) 433-0111

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 Robert Rock's NPI number?

The NPI number for Robert Rock is 1073635157. It was assigned to this individual provider in the NPPES registry on April 6, 2007.

Where is Robert Rock located?

Robert Rock practices at 835 S. Vanburen St., Green Bay, WI 54301. The listed phone number is (920) 433-8360.

What is Robert Rock's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Robert Rock enrolled in Medicare?

Yes. Robert Rock is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Rock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Rock reassigns Medicare benefits to 2 organizations: Aspirus Wausau Hospital Inc (Wittenberg, WI) and Aspirus Medical Group, Inc. (Wausau, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Rock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Rock accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Dean Health Plan, HealthPartners and Mountain Health CO-OP and 3 other insurers list Robert Rock 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 Robert Rock was last updated on August 18, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.