BENJAMIN MICHAEL KOZAK MD
NPI 1487015384
Radiology - Diagnostic Radiology in Boston, MA

Q: What is Benjamin Kozak's NPI number?

The NPI number for Benjamin Kozak is 1487015384. It was assigned to this individual provider in the NPPES registry on March 19, 2016.

Q: What is Benjamin Kozak'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 Benjamin Kozak was last updated on July 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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 March 19, 2016PECOS EnrolledAccepts Medicare Assignment

55 FRUIT ST, BOSTON, MA 02114(617) 643-3726 Get Directions Write a Review

NPPES record last updated: July 1, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 1, 2025, Sep 10, 2024, Jul 28, 2023 and 4 more (7 updates tracked since 2016).

On this page

About Benjamin Michael Kozak Md NPPES

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

BENJAMIN MICHAEL KOZAK MD (NPI 1487015384) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in California (A202269) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Adventist Health Castle, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1487015384

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameBENJAMIN MICHAEL KOZAKCredential: MD

Location Address55 FRUIT STBoston, MA 02114-2621

Mailing Address2825 Oak Lawn Ave Unit 192749Dallas, TX 75219-4688 · (510) 683-9500 · Fax (877) 880-2039

Phone(617) 643-3726

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2016

Enumeration DateMarch 19, 2016

Last NPPES UpdateJuly 1, 20257 updates tracked since enumeration

NPPES CertifiedJuly 1, 2025

✔ NPI 1487015384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in CA · A202269✔ Licensed in NC · 2025-01005✔ Licensed in KY · 55581✔ Licensed in MA · 277329✔ Licensed in TX · T2656✔ Licensed in MD · D0091889✔ Licensed in OH · 35.146016

Definition

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

55 FRUIT ST, Boston, MA 02114

Open in Google Maps ↗

Secondary Practice Location 1

Location 175 Francis StBoston, MA 02115-6110 · Phone (617) 732-5500

Accepted Insurance

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

Benjamin Michael Kozak Md 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 ID5395017354

PECOS Enrollment IDI20250609000902

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 Benjamin Kozak reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Agnes Healthcare Inc

363 mi

Internal Medicine

900 CATON AVE
Baltimore, MD 21229

Reassigned Medicare billing, California enrollment
6 clinicians in this Medicare group

NPI 1144250176 (667) 234-2149

Osu Radiology LLC

644 mi

Diagnostic Radiology

520 W 10TH AVE
Columbus, OH 43210

Reassigned Medicare billing, California enrollment
11 clinicians in this Medicare group

NPI 1912956814 (614) 293-8315

Blue Ridge Healthcare Medical Group Inc

717 mi

Diagnostic Radiology

2134 14TH AVENUE CIR NW STE D
Hickory, NC 28601

Reassigned Medicare billing, California enrollment
14 clinicians in this Medicare group

NPI 1578842035 (828) 580-1235

University Of Kentucky

770 mi

Diagnostic Radiology

800 ROSE STREET
Lexington, KY 40536

Reassigned Medicare billing, California enrollment
4 clinicians in this Medicare group

NPI 1770771974 (859) 323-5000

Sutter Valley Medical Foundation

2,623 mi

Multi-Specialty

480 PLUMAS BLVD
Yuba City, CA 95991

Reassigned Medicare billing, California enrollment
3,056 clinicians in this Medicare group

NPI 1992939565 (530) 749-3661

Pacific Radiology Group Inc

5,088 mi

Specialist

347 KUAKINI ST
Honolulu, HI 96817

Reassigned Medicare billing, California enrollment
7 clinicians in this Medicare group

NPI 1871577536 (808) 522-0190

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 23

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.

Injection, gadoterate meglumine, 0.1 ml A9575

Gadoterate meglumine is a contrast agent used in MRI scans to help visualize certain areas of your body more clearly. It's injected into your bloodstream, typically through a vein in your arm, and helps doctors get more detailed images.

2,200 services15 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.

203 services195 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.

159 services152 patients

Mri scan of brain before and after contrast 70553

88 services85 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.

64 services64 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.

63 services63 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.

62 services62 patients

Mri scan of brain without contrast 70551

52 services52 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.

35 services35 patients

Ct scan head or brain without contrast 70450

32 services32 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.

31 services30 patients

Ct scan of soft tissue of neck with contrast 70491

23 services23 patients

Mri scan of lower spinal canal without contrast 72148

21 services21 patients

Mri scan of blood vessels of head without contrast 70544

An MRI scan of the head's blood vessels without contrast is a non-invasive imaging procedure. It uses a magnetic field and radio waves to create detailed images of the blood vessels in your head. This helps doctors diagnose conditions such as stroke, aneurysm, or other vascular disorders.

19 services19 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.

16 services15 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.

16 services15 patients

Mri scan of upper spinal canal without contrast 72141

14 services14 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.

14 services12 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.

14 services12 patients

Mri scan of blood vessels of head without contrast 70544

13 services13 patients

Mri scan of upper spinal canal before and after contrast 72156

12 services11 patients

Mri scan of middle spinal canal before and after contrast 72157

12 services11 patients

Mri scan of lower spinal canal before and after contrast 72158

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Adventist Health Castle

Acute Care Hospitals · Kailua, HI

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number120006

Location640 Ulukahiki StKailua, HI 96734 · Honolulu County

Emergency services Birthing friendly

University Of Kentucky Hospital

Acute Care Hospitals · Lexington, KY

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number180067

Location800 Rose StreetLexington, KY 40536 · Fayette County

Emergency services Birthing friendly

Ohio State University State Health System

Acute Care Hospitals · Columbus, OH

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number360085

Location410 West 10th AvenueColumbus, OH 43210 · Franklin County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

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.

STUTI GIRISH SHROFF MD, MBBS

Pathology (Anatomic Pathology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2971

NANCY WANG M.D.

Internal Medicine (Hematology & Oncology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (017) 724-4000

DR. DUSAN HANIDZIAR M.D., PH.D.

Anesthesiology

55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114

Suffolk County (617) 726-3030

JOHN JOSEPH DANKO DO

Physical Medicine & Rehabilitation

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2000

DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.

Internal Medicine (Infectious Disease)

55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114

Suffolk County (617) 724-9248

MS. KELLY ELISHA TRECARTIN NP

Nurse Practitioner (Acute Care)

55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114

Suffolk County (617) 726-7400

JAMIE MARIE ALLEN NP

Nurse Practitioner

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 724-4410

DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.

Internal Medicine (Cardiovascular Disease)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 643-3238

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 Benjamin Kozak's NPI number?

The NPI number for Benjamin Kozak is 1487015384. It was assigned to this individual provider in the NPPES registry on March 19, 2016.

Where is Benjamin Kozak located?

Benjamin Kozak practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 643-3726.

What is Benjamin Kozak's specialty?

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

Is Benjamin Kozak enrolled in Medicare?

Yes. Benjamin Kozak 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 Benjamin Kozak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Benjamin Kozak reassigns Medicare benefits to 6 organizations: St Agnes Healthcare Inc (Baltimore, MD), Osu Radiology LLC (Columbus, OH), Blue Ridge Healthcare Medical Group Inc (Hickory, NC), University Of Kentucky (Lexington, KY), Sutter Valley Medical Foundation (Yuba City, CA) 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 Benjamin Kozak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Benjamin Kozak accept?

Health plans from Blue Cross and Blue Shield of Texas and CareSource list Benjamin Kozak 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 Benjamin Kozak affiliated with any hospitals?

According to CMS data, Benjamin Kozak is affiliated with Adventist Health Castle, University Of Kentucky Hospital and Ohio State University State Health System.

When was this NPI record last updated?

The NPPES record for Benjamin Kozak was last updated on July 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.