DR. GREGG WARREN DO
NPI 1184651366
Radiology - Diagnostic Radiology in Troy, MI

Q: What is Gregg Warren's NPI number?

The NPI number for Gregg Warren is 1184651366. It was assigned to this individual provider in the NPPES registry on June 26, 2006.

Q: What is Gregg Warren's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Gregg Warren was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since June 26, 2006PECOS EnrolledAccepts Medicare Assignment

44201 DEQUINDRE RD, TROY, MI 48085(248) 964-5190(248) 964-5199 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Gregg Warren Do NPPES

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

DR. GREGG WARREN DO (NPI 1184651366) is an individual diagnostic radiology provider in Troy, Michigan, licensed in Michigan (5101011119) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital Royal Oak, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1184651366

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. GREGG WARRENCredential: DO

Location Address44201 DEQUINDRE RDTroy, MI 48085-1117

Mailing Address26901 Beaumont Blvd Ste 3dSouthfield, MI 48033-3849 · (947) 522-1865 · Fax (947) 522-0307

Phone(248) 964-5190

Fax(248) 964-5199

Sole ProprietorNo

Medical School CMSDes Moines University Of Osteopathic Medicine And Health SciencesGraduated 1990

Enumeration DateJune 26, 2006

Last NPPES UpdateJuly 21, 2022

NPPES CertifiedJuly 21, 2022

✔ NPI 1184651366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in MI · 5101011119

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Also ListedSpecialistTaxonomy 174400000X · License 5101011119 (MI)

44201 DEQUINDRE RD, Troy, MI 48085

Open in Google Maps ↗

Secondary Practice Locations 4

Location 1468 Cadieux RdGrosse Pointe, MI 48230-1507 · Phone (313) 473-1833 · Fax (313) 473-6916

Location 236555 26 Mile Rd Ste 3000Lenox, MI 48048-3185 · Phone (947) 523-4040 · Fax (947) 523-4041

Location 33601 W 13 Mile RdRoyal Oak, MI 48073-6712 · Phone (248) 898-6509 · Fax (248) 898-5490

Location 436555 26 Mile Rd Ste 1400Lenox, MI 48048-3186 · Phone (947) 523-4020 · Fax (947) 523-4021

Other Identifiers 3

Medicaid1184651366MI

Other700F314390MI · Blue Shield

Other700F281060MI · Blue Care Network

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 and accepts Medicare assignment

Dr. Gregg Warren Do 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 ID8921096124

PECOS Enrollment IDI20040505001038, I20220301002663

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

Medicare enrollment records show Gregg Warren reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Troy Internal Medicine, PC

4.4 mi

Internal Medicine

4600 INVESTMENT DR, STE# 300
Troy, MI 48098

Reassigned Medicare billing, Michigan enrollment
78 clinicians in this Medicare group

NPI 1356450589 (248) 267-5000

Beaumont Medical Group Hospital -Based Services

8.8 mi

Hospitalist

3601 W 13 MILE RD
Royal Oak, MI 48073

Reassigned Medicare billing, Michigan enrollment
946 clinicians in this Medicare group

NPI 1427567858 (248) 898-5000

Mmg 1pc

12 mi

Internal Medicine

31500 TELEGRAPH RD, SUITE 100
Bingham Farms, MI 48025

Reassigned Medicare billing, Michigan enrollment
Medicare enrollment name: Mmg 1 PC
29 clinicians in this Medicare group

NPI 1154356517 (248) 723-5880

Monongahela Valley Hospital, Inc.

236 mi

Rehabilitation Unit

1163 COUNTRY CLUB ROAD
Monongahela, PA 15063

Reassigned Medicare billing, Pennsylvania enrollment
59 clinicians in this Medicare group

NPI 1174598858 (724) 258-1160

Dubois Regional Medical Center

246 mi

Diagnostic Radiology

100 HOSPITAL AVE
Du Bois, PA 15801

Reassigned Medicare billing, Pennsylvania enrollment
52 clinicians in this Medicare group

NPI 1093812406 (814) 375-2100

Highlands Hospital And Health Center

256 mi

Family Medicine

401 E MURPHY AVE, SUITE 201
Connellsville, PA 15425

Reassigned Medicare billing, Pennsylvania enrollment
155 clinicians in this Medicare group

NPI 1447443957 (724) 628-1500

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 38

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.

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

503 services503 patients

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.

381 services348 patients

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

336 services336 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

192 services190 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

183 services178 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

177 services167 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

166 services161 patients

Screening mammography 77067

164 services164 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.

107 services103 patients

Screening 3d breast mammography 77063

103 services103 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.

98 services97 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

93 services91 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

69 services66 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.

65 services63 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.

61 services61 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

57 services56 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

55 services55 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

47 services47 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

44 services44 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

40 services40 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

31 services31 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.

30 services30 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

26 services21 patients

Biopsy of breast and placement of locating device using ultrasound, first growth 19083

A breast biopsy with locating device placement involves taking a small sample from an unusual growth, using ultrasound for precise targeting. This sample is studied for any abnormal cells. A locating device is also placed to mark the area for future reference.

25 services25 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

25 services25 patients

X-ray of abdomen, 2 views 74019

An X-ray of the abdomen, 2 views, is a non-invasive imaging test. It uses a small amount of radiation to capture pictures of the structures inside your belly. The two views provide different angles, helping doctors see your organs clearly and detect any issues.

25 services24 patients

X-ray series of abdomen with single x-ray of chest 74022

An X-ray series of the abdomen and a single X-ray of the chest are imaging tests. They help doctors view the structures within your abdomen and chest. These tests can detect issues like blockages, infections, or tumors. You'll be positioned carefully, and the machine captures images.

21 services21 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

20 services20 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

18 services17 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

18 services18 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

16 services16 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

15 services14 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

14 services14 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

13 services13 patients

Ct scan of chest without contrast 71250

12 services12 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

12 services12 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

12 services12 patients

X-ray of ribs on side of body, minimum of 3 views 71101

This is a diagnostic procedure where a machine emits a small amount of radiation to capture images of your ribs from at least three different angles. It helps to identify issues like fractures or infections. It's a quick, painless process.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Beaumont Hospital Royal Oak

Acute Care Hospitals · Royal Oak, MI

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230130

Location3601 W Thirteen Mile RdRoyal Oak, MI 48073 · Oakland County

Emergency services Birthing friendly

Beaumont Hospital, Troy

Acute Care Hospitals · Troy, MI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230269

Location44201 Dequindre RoadTroy, MI 48085 · Oakland County

Emergency services Birthing friendly

Penn Highlands Huntingdon

Acute Care Hospitals · Huntingdon, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number390056

Location1225 Warm Springs AveHuntingdon, PA 16652 · Huntingdon County

Emergency services

Penn Highlands Dubois

Acute Care Hospitals · Dubois, PA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number390086

Location100 Hospital AvenueDubois, PA 15801 · Clearfield County

Penn Highlands Elk

Critical Access Hospitals · Saint Marys, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number391315

Location763 Johnsonburg RoadSaint Marys, PA 15857 · Elk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48085 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

$90.76 typical visit price

range $58.04 – $177.36

Typical copayment $22.69 (range $14.51 – $44.34)

Most-billed visit code 99203

Established Patient

$72.38 typical visit price

range $18.32 – $143.49

Typical copayment $18.09 (range $4.58 – $35.87)

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.

HARINI ERUPAKA REDDY M.D.

Pediatrics

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-1007

JOSLEEN ALBISHARA

Pharmacist

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-5000

STEPHANIE ANNE DAVENPORT PAC

Physician Assistant

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-4866

KRISTEN M LIGHT DNP, RN, AGPCNP-BC

Nurse Practitioner (Primary Care)

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-5000

ELLEN O MCGUIRE

Physician Assistant

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-4866

SAMANTHA GRACE HENDERSON PA-C

Physician Assistant

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-5000

DAVID DONALDSON

Emergency Medicine

44201 DEQUINDRE RD, EC
TROY, MI 48085

Oakland County (248) 964-8787

SHARON LINDOW

Speech-Language Pathologist

44201 DEQUINDRE RD
TROY, MI 48085

Oakland County (248) 964-5000

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 Gregg Warren's NPI number?

The NPI number for Gregg Warren is 1184651366. It was assigned to this individual provider in the NPPES registry on June 26, 2006.

Where is Gregg Warren located?

Gregg Warren practices at 44201 Dequindre Rd, Troy, MI 48085. The listed phone number is (248) 964-5190.

What is Gregg Warren's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Gregg Warren enrolled in Medicare?

Yes. Gregg 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 Gregg Warren's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Warren reassigns Medicare benefits to 6 organizations: Troy Internal Medicine, PC (Troy, MI), Beaumont Medical Group Hospital -Based Services (Royal Oak, MI), Mmg 1pc (Bingham Farms, MI), Monongahela Valley Hospital, Inc. (Monongahela, PA), Dubois Regional Medical Center (Du Bois, PA) and 1 more organization, 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 Gregg Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregg Warren accept?

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

According to CMS data, Gregg Warren is affiliated with Beaumont Hospital Royal Oak, Beaumont Hospital, Troy, Penn Highlands Huntingdon, Penn Highlands Dubois and Penn Highlands Elk.

When was this NPI record last updated?

The NPPES record for Gregg Warren was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.