DR. JAMES S JACOBS MD
NPI 1861619173
Radiology - Radiation Oncology in Denver, CO
About Dr. James S Jacobs Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES S JACOBS MD (NPI 1861619173) is an individual radiation oncology provider in Denver, Colorado, licensed in Colorado (25084) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted 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. James S Jacobs 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.
Medicare Billing Reassignments
2Medicare enrollment records show James Jacobs reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80218
- Reassigned Medicare billing, Colorado enrollment
- 1,270 clinicians in this Medicare group
Denver, CO 80220
- Reassigned Medicare billing, Colorado enrollment
- 61 clinicians in this Medicare group
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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80218 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
DENVER, CO 80218
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 James Jacobs's NPI number?
The NPI number for James Jacobs is 1861619173. It was assigned to this individual provider in the NPPES registry on April 19, 2007.
Where is James Jacobs located?
James Jacobs practices at 1375 E 19th Ave, Denver, CO 80218. The listed phone number is (303) 338-4545.
What is James Jacobs's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is James Jacobs enrolled in Medicare?
Yes. James Jacobs 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 James Jacobs's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Jacobs reassigns Medicare benefits to 2 organizations: Intermountain Medical Group Denver, LLC (Denver, CO) and Advanced Urology, PLLC (Denver, CO). 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 James Jacobs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Jacobs accept?
Health plans from Select Health list James Jacobs 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 James Jacobs was last updated on June 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. James S Jacobs, MD · NPI 1861619173
Radiation Oncology physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since April 19, 2007.
## Identity
- **NPI:** 1861619173 (Entity type: Individual)
- **Enumerated:** April 19, 2007
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** 25084 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1375 E 19TH AVE, Denver, CO 80218-1114
- **Phone:** (303) 338-4545
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Intermountain Medical Group Denver, LLC (NPI 1558975953, Denver, CO); Advanced Urology, PLLC (NPI 1932936192, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1981
## Record status
- **NPPES last updated:** June 11, 2021
- **Other identifiers:** Other 005813; Medicaid 01250844 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1861619173) · Data from the CMS NPPES public registry.