DR. PAUL N SIEBERT MD
NPI 1619395191
Internal Medicine - Infectious Disease in Denver, CO
About Dr. Paul N Siebert Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PAUL N SIEBERT MD (NPI 1619395191) is an individual infectious disease provider in Denver, Colorado, licensed in Colorado (DR0061128) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
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. Paul N Siebert 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 Reassignment
Medicare enrollment records show Paul Siebert reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80210
- Reassigned Medicare billing, Colorado enrollment
- 15 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 5
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 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.
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.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DENVER, CO 80210
DENVER, CO 80210
DENVER, CO 80210
DENVER, CO 80210
DENVER, CO 80210
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 Paul Siebert's NPI number?
The NPI number for Paul Siebert is 1619395191. It was assigned to this individual provider in the NPPES registry on April 2, 2014.
Where is Paul Siebert located?
Paul Siebert practices at 950 E Harvard Ave Ste 140, Denver, CO 80210. The listed phone number is (303) 777-0786.
What is Paul Siebert's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Paul Siebert enrolled in Medicare?
Yes. Paul Siebert 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 organization bills Medicare for Paul Siebert's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Paul Siebert reassigns Medicare benefits to Colorado Infectious Disease Associates, LLP (Denver, CO). The 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 Paul Siebert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Paul Siebert accept?
Health plans from UnitedHealthcare list Paul Siebert 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 Paul Siebert was last updated on May 12, 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.
# Dr. Paul N Siebert, MD · NPI 1619395191
Infectious Disease physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since April 2, 2014.
## Identity
- **NPI:** 1619395191 (Entity type: Individual)
- **Enumerated:** April 2, 2014
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** DR0061128 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 950 E HARVARD AVE STE 140, Denver, CO 80210-7007
- **Phone:** (303) 777-0786
## 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:** Colorado Infectious Disease Associates, LLP (NPI 1124023981, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Pittsburgh School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** May 12, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1619395191) · Data from the CMS NPPES public registry.