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DR. JOSEPH B SIMMERT DO
NPI 1124120894
Pediatrics in Grand Blanc, MI

Active since September 02, 2006PECOS Enrolled
8435 HOLLY RD, GRAND BLANC, MI 48439(810) 232-5627(810) 232-8024 Get Directions Write a Review

NPPES record last updated: June 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Joseph B Simmert Do NPPES

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

DR. JOSEPH B SIMMERT DO (NPI 1124120894) is an individual pediatrics provider in Grand Blanc, Michigan, licensed in Michigan (5101011898) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124120894
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. JOSEPH B SIMMERTCredential: DO
Location Address8435 HOLLY RDGrand Blanc, MI 48439-1812
Mailing Address3495 S Center RdFlint, MI 48519-1455
Phone(810) 232-5627
Fax(810) 232-8024
Sole ProprietorNo
Enumeration DateSeptember 2, 2006
Last NPPES UpdateJune 27, 2025
NPPES CertifiedJune 27, 2025
✔ NPI 1124120894 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MI · 5101011898
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
8435 HOLLY RD, Grand Blanc, MI 48439
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Other Identifiers 1

Medicaid3258669MI

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, Priority Health.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. Joseph B Simmert Do 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 Reassignment

Medicare enrollment records show Joseph Simmert reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Henry Ford Medical Group Genesys
4.9 mi
Family Medicine
3495 S CENTER RD
Burton, MI 48519
  • Reassigned Medicare billing, Michigan enrollment
  • 98 clinicians in this Medicare group
NPI 1598248718 (810) 424-2201

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48439 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
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
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.

ANNA LEE ROTH NP
Nurse Practitioner
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 232-5627
MARIANNE GOERGEN PSY.D.
Psychologist (Clinical)
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 424-2400
ASHLEY DUFFIELD NP
Nurse Practitioner
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 232-5627
BARBARA E JUBAR LMSW
Social Worker
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 424-2400
DR. JYOTHI NUTAKKI MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 424-2400
MYRA F. ALLISTON LLP
Psychologist (Cognitive & Behavioral)
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 424-2400
TARA PAULEY MSW
Social Worker (Clinical)
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 603-8800
GENESYS PRACTICE PARTNERS, INC
Psychiatry & Neurology (Psychiatry)
8435 HOLLY RD
GRAND BLANC, MI 48439
Genesee County (810) 424-2400

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 Joseph Simmert's NPI number?

The NPI number for Joseph Simmert is 1124120894. It was assigned to this individual provider in the NPPES registry on September 2, 2006.

Where is Joseph Simmert located?

Joseph Simmert practices at 8435 Holly Rd, Grand Blanc, MI 48439. The listed phone number is (810) 232-5627.

What is Joseph Simmert's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Joseph Simmert enrolled in Medicare?

Yes. Joseph Simmert is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joseph Simmert's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Simmert reassigns Medicare benefits to Henry Ford Medical Group Genesys (Burton, MI). The 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 Joseph Simmert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Joseph Simmert accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Joseph Simmert 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 Joseph Simmert was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.