JOHN DANIEL COMER MD, PHD
NPI 1790219160
Radiology - Diagnostic Radiology in Ann Arbor, MI

Q: What is John Comer's NPI number?

The NPI number for John Comer is 1790219160. It was assigned to this individual provider in the NPPES registry on April 12, 2017.

Q: What is John Comer'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 John Comer was last updated on October 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 April 12, 2017PECOS EnrolledAccepts Medicare Assignment

1500 E MEDICAL CENTER DR, ANN ARBOR, MI 48109(734) 936-4000 Get Directions Write a Review

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

Record update history: Oct 18, 2023, Jul 13, 2023, Apr 12, 2017 (3 updates tracked since 2017).

On this page

About John Daniel Comer Md, Phd NPPES

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

JOHN DANIEL COMER MD, PHD (NPI 1790219160) is an individual diagnostic radiology provider in Ann Arbor, Michigan, licensed in Michigan (4301506439) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and maintains a secondary practice location in Brooklyn.

NPPES Registry Identity

NPI1790219160

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameJOHN DANIEL COMERCredential: MD, PHD

Location Address1500 E MEDICAL CENTER DRAnn Arbor, MI 48109-5000

Mailing Address3621 S State StAnn Arbor, MI 48108-1633 · (734) 647-5299

Phone(734) 936-4000

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateApril 12, 2017

Last NPPES UpdateOctober 18, 20233 updates tracked since enumeration

NPPES CertifiedOctober 18, 2023

✔ NPI 1790219160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in MI · 4301506439

Definition

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

1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109

Open in Google Maps ↗

Secondary Practice Location 1

Location 1506 Sixth Street, New York-Presbyterian Brooklyn Methodist HospitalBrooklyn, NY 11215 · Phone (718) 780-5130

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health 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 and accepts Medicare assignment

John Daniel Comer Md, Phd 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 ID4082074307

PECOS Enrollment IDI20230719000291

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

Regents Of The University Of Michigan

Same address

Nephrology

1500 E MEDICAL CENTER DR
Ann Arbor, MI 48109

Reassigned Medicare billing, Michigan enrollment
2,377 clinicians in this Medicare group

NPI 1003848144 (734) 936-4000

Metropolitan Hospital

104 mi

Urgent Care

4055 CASCADE RD SE
Grand Rapids, MI 49546

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

NPI 1720590961 (616) 252-4010

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 29

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.

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.

120 services118 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.

69 services69 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

62 services59 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.

56 services56 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

54 services51 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.

52 services52 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

50 services50 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.

45 services45 patients

Mri scan of brain before and after contrast 70553

43 services43 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.

30 services30 patients

Ct scan of soft tissue of neck with contrast 70491

A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.

24 services23 patients

Ct scan of soft tissue of neck with contrast 70491

23 services23 patients

3d radiographic procedure with computerized image postprocessing 76377

A 3D radiographic procedure with computerized image postprocessing is a high-tech imaging test. It uses X-rays to create detailed 3D images of the body. The computerized postprocessing further enhances these images for more precise diagnosis and treatment planning.

18 services18 patients

3d radiographic procedure with computerized image postprocessing 76377

18 services18 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

17 services17 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

16 services16 patients

Mri scan of upper spinal canal before and after contrast 72156

An MRI scan of the upper spinal canal before and after contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. Contrast dye is injected to enhance these images, providing clearer visuals for accurate diagnosis.

16 services16 patients

Mri scan of upper spinal canal before and after contrast 72156

16 services16 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.

16 services16 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

14 services14 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.

14 services14 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

13 services13 patients

Mri scan of middle spinal canal before and after contrast 72157

An MRI scan of the middle spinal canal with contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your spine, both before and after a contrast dye is injected. The dye helps to highlight certain structures, providing a clearer picture for diagnosis.

13 services13 patients

Mri scan of middle spinal canal before and after contrast 72157

13 services13 patients

Mri scan of lower spinal canal without contrast 72148

12 services12 patients

Mri scan of lower spinal canal before and after contrast 72158

12 services12 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

11 services11 patients

Mri scan of middle spinal canal without contrast 72146

An MRI scan of the middle spinal canal without contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. This helps doctors identify any abnormalities or issues in your spinal canal. No dye is used in this procedure.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

University Of Michigan Health System

Acute Care Hospitals · Ann Arbor, MI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230046

Location1500 E Medical Center Drive, Spc 5474Ann Arbor, MI 48109 · Washtenaw County

Emergency services Birthing friendly

University Of Michigan Health - West

Acute Care Hospitals · Wyoming, MI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number230236

Location5900 Byron Center Avenue, SWWyoming, MI 49519 · Kent County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48109 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.

LOKMAN SUNG MD

Pathology (Forensic Pathology)

1500 E MEDICAL CENTER DR, 2ND FLOOR UNIVERSITY HOSPITAL RECP PATHOLOGY
ANN ARBOR, MI 48109

Washtenaw County (800) 862-7284

SAMEER DEV SAINI M.D.

Internal Medicine (Gastroenterology)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-4000

KYLE DAVID PERRY MD

Pathology (Cytopathology)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-4000

DR. DAVID ALEXANDER STEWART M.D.

Pediatrics

1500 E MEDICAL CENTER DR, 12TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL ROOM 525
ANN ARBOR, MI 48109

Washtenaw County (734) 763-5302

DR. MICHAEL EDMUND WATSON MD

Pediatrics (Pediatric Infectious Diseases)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-4000

CARRIE KRAEGER PORTER PA-C

Physician Assistant

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-6666

DENISE LYNN BERRY CRNA

Nurse Anesthetist, Certified Registered

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-4000

KETTI SOPHIA PETERSEN MD

Family Medicine (Hospice and Palliative Medicine)

1500 E MEDICAL CENTER DR
ANN ARBOR, MI 48109

Washtenaw County (734) 936-4000

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 John Comer's NPI number?

The NPI number for John Comer is 1790219160. It was assigned to this individual provider in the NPPES registry on April 12, 2017.

Where is John Comer located?

John Comer practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The listed phone number is (734) 936-4000.

What is John Comer's specialty?

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

Is John Comer enrolled in Medicare?

Yes. John Comer 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 John Comer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Comer reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and Metropolitan Hospital (Grand Rapids, MI). 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 John Comer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Comer accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list John Comer 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 John Comer affiliated with any hospitals?

According to CMS data, John Comer is affiliated with University Of Michigan Health System and University Of Michigan Health - West.

When was this NPI record last updated?

The NPPES record for John Comer was last updated on October 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.