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MARC THOMAS DOWNING MD
NPI 1083694699
Surgery - Pediatric Surgery in Kalamazoo, MI

Active since January 19, 2006PECOS Enrolled
84.88/100
CMS Quality Rating
601 JOHN ST, SUITE M351, KALAMAZOO, MI 49007(269) 341-6900(269) 341-7883 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Marc Thomas Downing Md NPPES

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

MARC THOMAS DOWNING MD (NPI 1083694699) is an individual pediatric surgery provider in Kalamazoo, Michigan, licensed in Michigan (4301078075) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083694699
Entity TypeIndividualMale
Primary Taxonomy2086S0120X
Provider Legal NameMARC THOMAS DOWNINGCredential: MD
Location Address601 JOHN ST, SUITE M351Kalamazoo, MI 49007-5341
Mailing Address601 John St, Suite M351Kalamazoo, MI 49007-5341 · (269) 341-6900 · Fax (269) 341-7883
Phone(269) 341-6900
Fax(269) 341-7883
Sole ProprietorNo
Enumeration DateJanuary 19, 2006
Last NPPES UpdateNovember 27, 2023
NPPES CertifiedOctober 5, 2020
✔ NPI 1083694699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
License✔ Licensed in MI · 4301078075
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
601 JOHN ST, Kalamazoo, MI 49007
Open in Google Maps ↗

Other Identifiers 2

Medicaid4459017MI
OtherCK6240MI · Railroad Medicare

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, CareSource 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)

Marc Thomas Downing 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 Marc Downing reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bronson Methodist Hospital
Same address
Hospitalist
601 JOHN STREET
Kalamazoo, MI 49007
  • Reassigned Medicare billing, Michigan enrollment
  • 1,133 clinicians in this Medicare group
NPI 1417961137 (269) 341-7654
Avera Mckennan
549 mi
Rural Health
1100 S 10TH AVE, STE 100
Rock Rapids, IA 51246
  • Reassigned Medicare billing, South Dakota enrollment
  • 1,277 clinicians in this Medicare group
NPI 1003389206 (712) 472-5300

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

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.

84.88/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.29
Promoting Interoperability100
Improvement Activities40
Cost68.32

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.

DR. AMANDA KEATING WALKER D.O.
Obstetrics & Gynecology
601 JOHN ST, SUITE N1200
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7979
ANDREW W. WALKER MD
Emergency Medicine
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (847) 404-6853
JUSTINE MELODIE OUDSEMA PA-C
Physician Assistant
601 JOHN ST, BOX 74
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-8481
OCHUKO ANDREW OGHOR CRNA
Nurse Anesthetist, Certified Registered
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (239) 341-7654
MARK J TIESZEN MD
Internal Medicine (Critical Care Medicine)
601 JOHN ST, SUITE M-510
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7762
DR. ERIC S SHAY M.D.
Internal Medicine
601 JOHN ST, SUITE M-170
KALAMAZOO, MI 49007
Kalamazoo County (269) 381-5060
EVGENIIA MORLEY RD
Dietitian, Registered
601 JOHN ST
KALAMAROO, MI 49007
Kalamazoo County (269) 341-6615
SELECT HOSPITALISTS, PLLC
Internal Medicine
601 JOHN ST
KALAMAZOO, MI 49007
Kalamazoo County (269) 341-7100

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 Marc Downing's NPI number?

The NPI number for Marc Downing is 1083694699. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Where is Marc Downing located?

Marc Downing practices at 601 John St Suite M351, Kalamazoo, MI 49007. The listed phone number is (269) 341-6900.

What is Marc Downing's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Marc Downing enrolled in Medicare?

Yes. Marc Downing is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marc Downing's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marc Downing reassigns Medicare benefits to 2 organizations: Bronson Methodist Hospital (Kalamazoo, MI) and Avera Mckennan (Rock Rapids, IA). 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 Marc Downing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marc Downing accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, CareSource, PacificSource Health Plans and Priority Health and 1 other insurer list Marc Downing 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 Marc Downing was last updated on November 27, 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.