MARGARET A HOLLAR DO
NPI 1376546770
Radiology - Neuroradiology in Indianapolis, IN

Q: What is Margaret Hollar's NPI number?

The NPI number for Margaret Hollar is 1376546770. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Q: What is Margaret Hollar's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Q: When was this NPI record last updated?

The NPPES record for Margaret Hollar was last updated on December 2, 2021. 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 May 31, 2005PECOS EnrolledAccepts Medicare Assignment

714 N SENATE AVE, STE EF100, INDIANAPOLIS, IN 46202(317) 715-6402(317) 715-6415 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 2, 2021, Feb 2, 2021 (2 updates tracked since 2021).

On this page

About Margaret A Hollar Do NPPES

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

MARGARET A HOLLAR DO (NPI 1376546770) is an individual neuroradiology provider in Indianapolis, Indiana, licensed in Indiana (02003362A) and active in the NPI registry since May 2005. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health Bloomington Hospital, and is a graduate of Michigan State University College Of Osteopathic Medicine (1993).

NPPES Registry Identity

NPI1376546770

Entity TypeIndividualFemale

Primary Taxonomy2085N0700X

Provider Legal NameMARGARET A HOLLARCredential: DO

Location Address714 N SENATE AVE, STE EF100Indianapolis, IN 46202-3763

Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959

Phone(317) 715-6402

Fax(317) 715-6415

Sole ProprietorNo

Medical School CMSMichigan State University College Of Osteopathic MedicineGraduated 1993

Enumeration DateMay 31, 2005

Last NPPES UpdateDecember 2, 20212 updates tracked since enumeration

NPPES CertifiedDecember 2, 2021

✔ NPI 1376546770 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085N0700X

License✔ Licensed in IN · 02003362A

Definition

A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 02003362 (IN), L4443 (TX)

714 N SENATE AVE, Indianapolis, IN 46202

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Other Identifiers 3

Medicaid157975701TX

OtherP00632708IN · Railroad Mediare

Medicaid200911690IN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margaret A Hollar 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 ID345153888

PECOS Enrollment IDI20080925000491

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.

Areas of Expertise CMS Part B claims 15

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.

651 services621 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.

198 services197 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.

141 services139 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.

121 services120 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.

89 services89 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.

55 services55 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.

44 services44 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

42 services41 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.

30 services30 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.

27 services27 patients

Ct scan head or brain without contrast 70450

21 services21 patients

Mri scan of lower spinal canal without contrast 72148

16 services16 patients

Mri scan of brain before and after contrast 70553

13 services13 patients

Mri scan of brain without contrast 70551

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Indiana University Health Bloomington Hospital

Acute Care Hospitals · Bloomington, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150051

Location2651 East Discovery ParkwayBloomington, IN 47408 · Monroe County

Emergency services Birthing friendly

Indiana University Health

Acute Care Hospitals · Indianapolis, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150056

Location1701 N Senate BlvdIndianapolis, IN 46202 · Marion County

Emergency services Birthing friendly

Indiana University Health Ball Memorial Hospital

Acute Care Hospitals · Muncie, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150089

Location2401 University AveMuncie, IN 47303 · Delaware County

Emergency services Birthing friendly

Iu Health West Hospital

Acute Care Hospitals · Avon, IN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number150158

Location1111 N Ronald Reagan PkwyAvon, IN 46123 · Hendricks County

Emergency services Birthing friendly

Indiana University Health North Hospital

Acute Care Hospitals · Carmel, IN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150161

Location11700 N Meridian StCarmel, IN 46032 · Hamilton County

Emergency services Birthing friendly

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.

KARL L YANG MD

Internal Medicine (Sleep Medicine)

714 N SENATE AVE
INDIANAPOLIS, IN 46202

Marion County (317) 963-0555

JOSHUA JOSEPH BARZILAI DO

Family Medicine (Sleep Medicine)

714 N SENATE AVE
INDIANAPOLIS, IN 46202

Marion County (317) 963-0555

WINSTON BROOKS DAVIS MD

Radiology (Diagnostic Radiology)

714 N SENATE AVE, STE EF205
INDIANAPOLIS, IN 46202

Marion County (317) 715-6402

SANDRA K GRONINGER FNP

Nurse Practitioner

714 N SENATE AVE, STE 100
INDIANAPOLIS, IN 46202

Marion County (317) 715-6402

EDWARD DOYLE SARA III MD

Radiology (Diagnostic Radiology)

714 N SENATE AVE, STE 100
INDIANAPOLIS, IN 46202

Marion County (317) 715-6401

MILTON MARVIN ANG CHUA M.D.

Internal Medicine (Sleep Medicine)

714 N SENATE AVE
INDIANAPOLIS, IN 46202

Marion County (317) 963-0555

AMY W RHODES MD

Radiology (Diagnostic Radiology)

714 N SENATE AVE, SUITE 100
INDIANAPOLIS, IN 46202

Marion County (317) 715-6402

DR. JUSTIN BRETT SIMS M.D.

Radiology (Diagnostic Radiology)

714 N SENATE AVE, STE 100
INDIANAPOLIS, IN 46202

Marion County (317) 715-6381

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 Margaret Hollar's NPI number?

The NPI number for Margaret Hollar is 1376546770. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is Margaret Hollar located?

Margaret Hollar practices at 714 N Senate Ave Ste Ef100, Indianapolis, IN 46202. The listed phone number is (317) 715-6402.

What is Margaret Hollar's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is Margaret Hollar enrolled in Medicare?

Yes. Margaret Hollar 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.

What insurance does Margaret Hollar accept?

Health plans from Anthem Blue Cross and Blue Shield and CareSource list Margaret Hollar 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 Margaret Hollar affiliated with any hospitals?

According to CMS data, Margaret Hollar is affiliated with Indiana University Health Bloomington Hospital, Indiana University Health, Indiana University Health Ball Memorial Hospital, Iu Health West Hospital and Indiana University Health North Hospital.

When was this NPI record last updated?

The NPPES record for Margaret Hollar was last updated on December 2, 2021. 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.