DR. DONALD FREI M.D.
NPI 1619954450
Radiology - Diagnostic Radiology in Englewood, CO

Q: What is Donald Frei's NPI number?

The NPI number for Donald Frei is 1619954450. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Q: What is Donald Frei'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 Donald Frei was last updated on December 9, 2022. 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 December 22, 2005PECOS EnrolledAccepts Medicare Assignment

85.28/100

CMS Quality Rating

499 E HAMPDEN AVE STE 380, ENGLEWOOD, CO 80113(720) 493-3345(720) 874-4437 Get Directions Write a Review

NPPES record last updated: December 9, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 9, 2022, Apr 26, 2021 (2 updates tracked since 2021).

On this page

About Dr. Donald Frei M.d. NPPES

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

DR. DONALD FREI M.D. (NPI 1619954450) is an individual diagnostic radiology provider in Englewood, Colorado, licensed in Colorado (39394) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (1989).

NPPES Registry Identity

NPI1619954450

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. DONALD FREICredential: M.D.

Location Address499 E HAMPDEN AVE STE 380Englewood, CO 80113-3877

Mailing Address10800 E Geddes Ave Ste 300Englewood, CO 80112-3895 · (303) 761-9190 · Fax (720) 874-4462

Phone(720) 493-3345

Fax(720) 874-4437

Sole ProprietorNo

Medical School CMSUniversity Of Cincinnati College Of MedicineGraduated 1989

Enumeration DateDecember 22, 2005

Last NPPES UpdateDecember 9, 20222 updates tracked since enumeration

NPPES CertifiedDecember 9, 2022

✔ NPI 1619954450 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 CO · 39394

Definition

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

499 E HAMPDEN AVE STE 380, Englewood, CO 80113

Open in Google Maps ↗

Other Identifiers 13

Medicaid104699363MI

Medicaid117404500WY

Medicaid200025510AOH

Medicaid200259000AKS

Medicaid10025709000NE

Medicaid1619954450SD

Medicaid699944492AGA

Medicaid1619954450MT

Medicaid84-059792913NE

Medicaid920761AZ

Medicaid200025510AOK

Medicaid89880285NM

Medicaid60676744CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Insurance Company, Select 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. Donald Frei 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 ID5092762518

PECOS Enrollment IDI20050406000482

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

Ria Endovascular, LLC

5.2 mi

Diagnostic Radiology

8200 E BELLEVIEW AVE, #600E
Greenwood Village, CO 80111

Reassigned Medicare billing, Colorado enrollment
46 clinicians in this Medicare group

NPI 1558301077 (720) 493-3406

Medical Imaging Of Colorado Radiology Imaging Assc PC Etal Pt

8.0 mi

Diagnostic Radiology

10800 E GEDDES AVE STE 300
Englewood, CO 80112

Reassigned Medicare billing, Colorado enrollment
160 clinicians in this Medicare group

NPI 1336188234 (303) 761-9190

Radiology Imaging Associates, PC

8.0 mi

Diagnostic Radiology

10800 E GEDDES AVE STE 300
Englewood, CO 80112

Reassigned Medicare billing, Colorado enrollment
162 clinicians in this Medicare group

NPI 1679513196 (303) 761-9190

Banner Imaging Services Colorado LLC

53 mi

Diagnostic Radiology

1900 BOISE AVE STE 110
Loveland, CO 80538

Reassigned Medicare billing, Colorado enrollment
126 clinicians in this Medicare group

NPI 1326674979 (970) 820-6518

Gunnison Valley Hospital

118 mi

Urgent Care

12 SNOWMASS ROAD, #100
Crested Butte, CO 81225

Reassigned Medicare billing, Colorado enrollment
176 clinicians in this Medicare group

NPI 1134754153 (970) 349-0321

Radiology Imaging Of Nebraska, LLC

172 mi

Diagnostic Radiology

4021 AVENUE B
Scottsbluff, NE 69361

Reassigned Medicare billing, Colorado enrollment
131 clinicians in this Medicare group

NPI 1184869901 (308) 635-3711

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 12

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.

Imaging of blood vessel 75898

Imaging of blood vessels, also known as vascular imaging, is a non-invasive procedure that allows doctors to view the condition of your blood vessels. It employs techniques like ultrasound, CT scan, or MRI to capture images, enabling the detection of blockages or abnormalities.

58 services13 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

57 services50 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.

45 services41 patients

Insertion of tube into intracranial artery for diagnosis or treatment with review by radiologist 36223

This procedure involves placing a tube into an artery in the brain. It's typically done for diagnostic purposes or treatment. A radiologist, a doctor specializing in imaging, reviews the process to ensure accuracy and safety.

33 services32 patients

Insertion of tube into brain artery for diagnosis or treatment with review by radiologist 36226

This procedure involves inserting a thin tube into a brain artery. It aids in diagnosing or treating brain conditions. A radiologist reviews the process to ensure accuracy and safety. It's a critical step in managing brain health effectively.

28 services28 patients

Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist 36224

This procedure involves placing a small tube into your neck artery. It helps diagnose or treat certain conditions. A radiologist, a doctor specializing in medical imaging, reviews the process to ensure accuracy and safety.

26 services23 patients

Review by radiologist of image for insertion of material to block blood flow 75894

This procedure involves a radiologist examining an image to plan the placement of a substance that will block blood flow in a specific area. This is usually done to prevent bleeding or to cut off the blood supply to a growth.

26 services17 patients

Occlusion of central nervous system or spinal cord artery 61624

This procedure involves blocking a central nervous system or spinal cord artery to prevent blood flow. It's typically done to treat conditions like aneurysms or vascular malformations. It can help prevent strokes, bleeding, or other serious issues.

25 services16 patients

Insertion of tube into chest artery for diagnosis or treatment with review by radiologist 36225

This procedure involves placing a small tube into a chest artery. It helps diagnose or treat certain heart conditions. A radiologist, a doctor specialized in imaging techniques, will review the results to ensure accuracy and effectiveness.

20 services19 patients

Removal of blood clot and injection to dissolve blood clot from head artery using fluoroscopic guidance 61645

This procedure involves removing a blood clot from a head artery. A special imaging technique called fluoroscopy is used for guidance. Additionally, an injection is given to help dissolve any remaining clot. This helps restore normal blood flow to the brain.

17 services17 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist 36227

This procedure involves placing a small tube into an artery in your neck. This is done to diagnose or treat certain conditions. A radiologist, a doctor who specializes in medical imaging, will review the procedure to ensure everything is done correctly.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80113 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

$89.43 typical visit price

range $58.06 – $174.82

Typical copayment $22.35 (range $14.51 – $43.70)

Most-billed visit code 99203

Established Patient

$72.20 typical visit price

range $18.88 – $142.79

Typical copayment $18.05 (range $4.72 – $35.69)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.28/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

98.13

Improvement Activities

Cost

54.36

Other Providers at the Same Location NPPES

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

JENNIFER EATON PA-C

Physician Assistant

499 E HAMPDEN AVE STE 380
ENGLEWOOD, CO 80113

Arapahoe County (303) 761-9190

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 Donald Frei's NPI number?

The NPI number for Donald Frei is 1619954450. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Where is Donald Frei located?

Donald Frei practices at 499 E Hampden Ave Ste 380, Englewood, CO 80113. The listed phone number is (720) 493-3345.

What is Donald Frei's specialty?

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

Is Donald Frei enrolled in Medicare?

Yes. Donald Frei 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 Donald Frei's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Donald Frei reassigns Medicare benefits to 6 organizations: Ria Endovascular, LLC (Greenwood Village, CO), Medical Imaging Of Colorado Radiology Imaging Assc PC Etal Pt (Englewood, CO), Radiology Imaging Associates, PC (Englewood, CO), Banner Imaging Services Colorado LLC (Loveland, CO), Gunnison Valley Hospital (Crested Butte, CO) 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 Donald Frei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Donald Frei accept?

Health plans from Oscar Health, Oscar Insurance Company and Select Health list Donald Frei 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.

When was this NPI record last updated?

The NPPES record for Donald Frei was last updated on December 9, 2022. 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.