DR. JOHN A VAN DOORNINCK MD
NPI 1194970350
Pediatrics - Pediatric Hematology-Oncology in Denver, CO
About Dr. John A Van Doorninck Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN A VAN DOORNINCK MD (NPI 1194970350) is an individual pediatric hematology-oncology provider in Denver, Colorado, licensed in Colorado (48641) and active in the NPI registry since December 2008. He is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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. John A Van Doorninck 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 John Van Doorninck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80205
- Reassigned Medicare billing, Colorado enrollment
- 23 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.
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 80205
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 John Van Doorninck's NPI number?
The NPI number for John Van Doorninck is 1194970350. It was assigned to this individual provider in the NPPES registry on December 1, 2008.
Where is John Van Doorninck located?
John Van Doorninck practices at 2055 N High St #340, Denver, CO 80205. The listed phone number is (303) 832-2344.
What is John Van Doorninck's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is John Van Doorninck enrolled in Medicare?
Yes. John Van Doorninck 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 John Van Doorninck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Van Doorninck reassigns Medicare benefits to Healthone Clinic Services - Pediatric Specialties LLC (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 John Van Doorninck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Van Doorninck accept?
Health plans from Blue Cross Blue Shield of Wyoming and UnitedHealthcare list John Van Doorninck 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 John Van Doorninck was last updated on January 31, 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. John A Van Doorninck, MD · NPI 1194970350
Pediatric Hematology-Oncology physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since December 1, 2008.
## Identity
- **NPI:** 1194970350 (Entity type: Individual)
- **Enumerated:** December 1, 2008
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** 48641 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 2055 N HIGH ST, #340, Denver, CO 80205-5503
- **Phone:** (303) 832-2344 · **Fax:** (303) 832-3721
## 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:** Healthone Clinic Services - Pediatric Specialties LLC (NPI 1720293251, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Vanderbilt University School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** January 31, 2022
- **Other identifiers:** Medicaid 10025570100 (NE); Medicaid 1194970350 (SD); Medicaid 06207219 (NM); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1194970350) · Data from the CMS NPPES public registry.