DR. MICHAEL WILLIAM WARREN M.D.
NPI 1700140068
Radiology - Vascular & Interventional Radiology in Saginaw, MI

Active since July 01, 2012PECOS EnrolledAccepts Medicare Assignment
3400 N CENTER RD, SAGINAW, MI 48603(989) 401-4253(989) 753-4024 Get Directions Write a Review

NPPES record last updated: June 15, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 15, 2018, Mar 17, 2018, Jul 3, 2017 (3 updates tracked since 2017).

About Dr. Michael William Warren M.d. NPPES

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

DR. MICHAEL WILLIAM WARREN M.D. (NPI 1700140068) is an individual vascular & interventional radiology provider in Saginaw, Michigan, licensed in Michigan (4301101113) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1700140068
Entity TypeIndividualMale
Primary Taxonomy2085R0204X
Provider Legal NameDR. MICHAEL WILLIAM WARRENCredential: M.D.
Location Address3400 N CENTER RDSaginaw, MI 48603
Mailing Address3400 N Center RdSaginaw, MI 48603-7919 · (989) 401-4253 · Fax (989) 753-4024
Fax(989) 753-4024
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 2012
Enumeration DateJuly 1, 2012
Last NPPES UpdateJune 15, 20183 updates tracked since enumeration
✔ NPI 1700140068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0204X
License✔ Licensed in MI · 4301101113
Definition
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 4301101113 (MI)
3400 N CENTER RD, Saginaw, MI 48603

Secondary Practice Locations 2

Location 116001 W 9 Mile Rd, Providence HospitalSouthfield, MI 48075-4818 · Phone (248) 849-8483
Location 23601 W 13 Mile RdRoyal Oak, MI 48073-6712 · Phone (248) 898-6091 ext. 6091

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael William Warren M.d. 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 ID7911254396
PECOS Enrollment IDI20180716003509
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

11

Medicare enrollment records show Michael Warren reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Urgent Care
5570 STATE ST
Saginaw, MI 48603
  • Reassigned Medicare billing, Michigan enrollment
  • 720 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
501 LAPEER
Saginaw, MI 48607
  • Reassigned Medicare billing, Michigan enrollment
  • 229 clinicians in this Medicare group
Advanced Practice Midwife
3175 PROFESSIONAL CT
Bay City, MI 48706
  • Reassigned Medicare billing, Michigan enrollment
  • 416 clinicians in this Medicare group
Pulmonary Disease
640 S TRUMBULL ST
Bay City, MI 48708
  • Reassigned Medicare billing, Michigan enrollment
  • 250 clinicians in this Medicare group
General Practice
401 S BALLENGER HWY
Flint, MI 48532
  • Reassigned Medicare billing, Michigan enrollment
  • 242 clinicians in this Medicare group
Emergency Medicine
401 S BALLENGER HWY
Flint, MI 48532
  • Reassigned Medicare billing, Michigan enrollment
  • 444 clinicians in this Medicare group
Diagnostic Radiology
501 S BALLENGER HWY, SUITE B
Flint, MI 48532
  • Reassigned Medicare billing, Michigan enrollment
  • 8 clinicians in this Medicare group
General Acute Care Hospital
1221 SOUTH DR
Mt Pleasant, MI 48858
  • Reassigned Medicare billing, Michigan enrollment
  • 321 clinicians in this Medicare group
Diagnostic Radiology
1 GENESYS PKWY
Grand Blanc, MI 48439
  • Reassigned Medicare billing, Michigan enrollment
  • 47 clinicians in this Medicare group
Gynecologic Oncology
1515 LAKE LANSING RD, SUITE O
Lansing, MI 48912
  • Reassigned Medicare billing, Michigan enrollment
  • 167 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 69

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
1,293 services827 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
514 services493 patients
Ct scan of chest without contrast 71250
A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.
473 services453 patients
Ct scan of chest with contrast 71260
A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.
430 services404 patients
Low dose ct scan of chest for lung cancer screening 71271
A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.
335 services335 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
291 services255 patients

Hospital Affiliations CMS Care Compare 5

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

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Mclaren Central Michigan

Acute Care Hospitals · Mount Pleasant, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230080
Location1221 South DriveMount Pleasant, MI 48858 · Isabella County
Emergency services Birthing friendly

Mclaren Flint

Acute Care Hospitals · Flint, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230141
Location401 S Ballenger HighwayFlint, MI 48532 · Genesee County
Emergency services Birthing friendly

Mclaren Lapeer Region

Acute Care Hospitals · Lapeer, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230193
Location1375 N Main StLapeer, MI 48446 · Lapeer County
Emergency services Birthing friendly

Mclaren Oakland

Acute Care Hospitals · Pontiac, MI
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230207
Location50 N Perry StPontiac, MI 48342 · Oakland County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48603 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.

Other Providers at the Same Location NPPES 19

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

Family Medicine
3400 N CENTER RD, SUITE 100
SAGINAW, MI 48603
Family Medicine
3400 N CENTER RD, SUITE 200
SAGINAW, MI 48603
Radiology (Neuroradiology)
3400 N CENTER RD, SUITE 400
SAGINAW, MI 48603
Radiology (Diagnostic Radiology)
3400 N CENTER RD, SUITE 400
SAGINAW, MI 48603
Radiology (Diagnostic Radiology)
3400 N CENTER RD, SUITE 400
SAGINAW, MI 48603
Internal Medicine (Pulmonary Disease)
3400 N CENTER RD
SAGINAW, MI 48603
Radiology (Diagnostic Radiology)
3400 N CENTER RD, SUITE 400
SAGINAW, MI 48603
Radiology (Vascular & Interventional Radiology)
3400 N CENTER RD, SUITE 400
SAGINAW, MI 48603

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 Michael Warren's NPI number?

The NPI number for Michael Warren is 1700140068. It was assigned to this individual provider in the NPPES registry on July 1, 2012.

Where is Michael Warren located?

Michael Warren practices at 3400 N Center Rd, Saginaw, MI 48603. The listed phone number is (989) 401-4253.

What is Michael Warren's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Is Michael Warren enrolled in Medicare?

Yes. Michael Warren 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.

Which organizations bill Medicare for Michael Warren's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Warren reassigns Medicare benefits to 11 organizations: Covenant Medical Center, Inc. (Saginaw, MI), Great Lakes Bay Health Centers (Saginaw, MI), Mclaren Medical Group (Bay City, MI), Mclaren Bay Region (Bay City, MI), Mclaren Flint (Flint, MI) and 6 more organizations, listed in the Medicare section above. 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 Michael Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Warren accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Michael Warren 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 Michael Warren affiliated with any hospitals?

According to CMS data, Michael Warren is affiliated with Spectrum Health, Mclaren Central Michigan, Mclaren Flint, Mclaren Lapeer Region and Mclaren Oakland.

When was this NPI record last updated?

The NPPES record for Michael Warren was last updated on June 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.