SETH D REINER M.D.
NPI 1497887624
Radiology - Radiation Oncology in Denver, CO

Q: What is Seth Reiner's NPI number?

The NPI number for Seth Reiner is 1497887624. It was assigned to this individual provider in the NPPES registry on March 12, 2007.

Q: What is Seth Reiner's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Seth Reiner was last updated on February 9, 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 March 12, 2007PECOS EnrolledAccepts Medicare Assignment

2555 S DOWNING ST, DENVER, CO 80210(303) 778-5714(303) 778-5293 Get Directions Write a Review

NPPES record last updated: February 9, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Seth D Reiner M.d. NPPES

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

SETH D REINER M.D. (NPI 1497887624) is an individual radiation oncology provider in Denver, Colorado, licensed in Colorado (31800) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Holy Rosary Healthcare, and is a graduate of State University Of New York Downstate Medical Center (1988).

NPPES Registry Identity

NPI1497887624

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameSETH D REINERCredential: M.D.

Location Address2555 S DOWNING STDenver, CO 80210-5855

Mailing AddressPo Box 910779Denver, CO 80291-0779 · (303) 778-5714 · Fax (303) 778-5293

Phone(303) 778-5714

Fax(303) 778-5293

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 1988

Enumeration DateMarch 12, 2007

Last NPPES UpdateFebruary 9, 2022

✔ NPI 1497887624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in CO · 31800

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

2555 S DOWNING ST, Denver, CO 80210

Open in Google Maps ↗

Other Identifiers 1

Medicaid01318021CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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

Seth D Reiner 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 ID2668546300

PECOS Enrollment IDI20250311002877

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

Intermountain Medical Group Denver, LLC

3.3 mi

Family Medicine

400 S COLORADO BLVD STE 900
Denver, CO 80246

Reassigned Medicare billing, Colorado enrollment
1,270 clinicians in this Medicare group

NPI 1316551716 (303) 318-3520

Holy Rosary Healthcare

466 mi

Clinic/Center

2600 WILSON ST
Miles City, MT 59301

Reassigned Medicare billing, Montana enrollment
88 clinicians in this Medicare group

NPI 1225201825 (406) 233-2500

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 8

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 guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

221 services37 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

84 services16 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

49 services18 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

47 services21 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

23 services23 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

18 services18 patients

Hospital Affiliations CMS Care Compare

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

Holy Rosary Healthcare

Critical Access Hospitals · Miles City, MT

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number271347

Location2600 Wilson StMiles City, MT 59301 · Custer County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80210 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

$174.82 typical visit price

range $58.06 – $174.82

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

Most-billed visit code 99205

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.

Other Providers at the Same Location NPPES 14

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

PORTERCARE ADVENTIST HEALTH SYSTEM

Internal Medicine (Hematology & Oncology)

2555 S DOWNING ST, SUITE 240
DENVER, CO 80210

Denver County (303) 715-7030

MRS. KATHEY RANEA SPENCE PA PHYSICIAN ASSISTA

Physician Assistant

2555 S DOWNING ST, #130
DENVER, CO 80210

Denver County (303) 777-7112

BLAIR KATELYN WERNICK NP

Nurse Practitioner (Obstetrics & Gynecology)

2555 S DOWNING ST
DENVER, CO 80210

Denver County (303) 316-6677

TOXICOLOGY ASSOCIATES PROF LLC

Specialist

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

DR. RYAN ANDREW GAINES MD

Otolaryngology (Plastic Surgery within the Head & Neck)

2555 S DOWNING ST, SUITE #100
DENVER, CO 80210

Denver County (303) 778-5658

WILLIAM JOSEPH BOROUGHF D.O.

Emergency Medicine

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

WOUND CARE & HYPERBARIC MEDICINE ASSOCIATES, LLC

Emergency Medicine (Undersea and Hyperbaric Medicine)

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

ALLISON SWINEHART PA-C

Physician Assistant

2555 S DOWNING ST
DENVER, CO 80210

Denver County (303) 316-6677

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 Seth Reiner's NPI number?

The NPI number for Seth Reiner is 1497887624. It was assigned to this individual provider in the NPPES registry on March 12, 2007.

Where is Seth Reiner located?

Seth Reiner practices at 2555 S Downing St, Denver, CO 80210. The listed phone number is (303) 778-5714.

What is Seth Reiner's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Seth Reiner enrolled in Medicare?

Yes. Seth Reiner 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 Seth Reiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seth Reiner reassigns Medicare benefits to 2 organizations: Intermountain Medical Group Denver, LLC (Denver, CO) and Holy Rosary Healthcare (Miles City, MT). 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 Seth Reiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Seth Reiner accept?

Health plans from Select Health list Seth Reiner 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 Seth Reiner affiliated with any hospitals?

According to CMS data, Seth Reiner is affiliated with Holy Rosary Healthcare.

When was this NPI record last updated?

The NPPES record for Seth Reiner was last updated on February 9, 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.