PORTERCARE ADVENTIST HEALTH SYSTEM
NPI 1720963036
Internal Medicine - Hematology & Oncology in Castle Rock, CO
About Portercare Adventist Health System NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PORTERCARE ADVENTIST HEALTH SYSTEM (NPI 1720963036), doing business as Adventhealth Hematology And Oncology Castle Rock, is a healthcare organization registered as a hematology & oncology in Castle Rock, Colorado and active in the NPI registry since August 2025. The organization lists Jason Tacha, Coo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Portercare Adventist Health System is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
733Medicare enrollment records show 733 clinicians reassign Medicare billing to Portercare Adventist Health System, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 45
Nearest to this location (20)
See all 733Ann Arbor, MI 48109
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Portercare Adventist Health System's NPI number?
The NPI number for Portercare Adventist Health System is 1720963036. It was assigned to this organization in the NPPES registry on August 6, 2025. The provider is doing business as AdventHealth Hematology and Oncology Castle Rock.
Where is Portercare Adventist Health System located?
Portercare Adventist Health System is located at 2360 Meadows Blvd Ste 300, Castle Rock, CO 80109. The listed phone number is (303) 715-7106.
What is Portercare Adventist Health System's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Portercare Adventist Health System enrolled in Medicare?
Yes. Portercare Adventist Health System is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Portercare Adventist Health System?
According to the CMS Revalidation Reassignment List (October 2026 release), 733 clinicians in 45 Medicare specialties reassign their Medicare billing to Portercare Adventist Health System. A 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 the clinician's services. The largest specialties are Nurse Practitioner (159), Family Practice (83) and Internal Medicine (77). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Portercare Adventist Health System was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Portercare Adventist Health System · NPI 1720963036
Hematology & Oncology organization in Castle Rock, Colorado. Organization record, active in the CMS NPPES registry since August 6, 2025.
## Identity
- **NPI:** 1720963036 (Entity type: Organization)
- **Enumerated:** August 6, 2025
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **Also known as:** AdventHealth Hematology and Oncology Castle Rock (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Jason Tacha, COO
## Practice location
- **Address:** 2360 MEADOWS BLVD STE 300, Castle Rock, CO 80109-8405
- **Phone:** (303) 715-7106 · **Fax:** (720) 452-7540
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 733 clinicians in 45 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (159), Family Practice (83), Internal Medicine (77); [full list](https://npiprofile.com/npi/1720963036/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1720963036) · Data from the CMS NPPES public registry.