DR. MICHAEL L RUYGROK MD
NPI 1487944344
Emergency Medicine in Denver, CO
About Dr. Michael L Ruygrok Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL L RUYGROK MD (NPI 1487944344) is an individual emergency medicine provider in Denver, Colorado, licensed in Colorado (053563) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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. Michael L Ruygrok 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
7Medicare enrollment records show Michael Ruygrok reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80204
- Reassigned Medicare billing, Colorado enrollment
- 2,259 clinicians in this Medicare group
Denver, CO 80210
- Reassigned Medicare billing, Colorado enrollment
- 468 clinicians in this Medicare group
Denver, CO 80224
- Reassigned Medicare billing, Colorado enrollment
- 352 clinicians in this Medicare group
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 285 clinicians in this Medicare group
Westminster, CO 80031
- Reassigned Medicare billing, Colorado enrollment
- 130 clinicians in this Medicare group
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 111 clinicians in this Medicare group
Erie, PA 16503
- Reassigned Medicare billing, Colorado enrollment
- 2 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 80204 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DENVER, CO 80204
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 Michael Ruygrok's NPI number?
The NPI number for Michael Ruygrok is 1487944344. It was assigned to this individual provider in the NPPES registry on April 13, 2011.
Where is Michael Ruygrok located?
Michael Ruygrok practices at 777 Bannock St, Denver, CO 80204. The listed phone number is (303) 436-7142.
What is Michael Ruygrok's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Michael Ruygrok enrolled in Medicare?
Yes. Michael Ruygrok 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 Michael Ruygrok's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Ruygrok reassigns Medicare benefits to 7 organizations: Denver Health And Hospital Authority (Denver, CO), Usacs Of Colorado Inc (Denver, CO), Usacs Community Emergency Services Of Colorado, Inc. (Denver, CO), Usacs Observation Medicine Services Of Colorado Inc. (Lakewood, CO), Premier Emergency Services, Inc (Westminster, CO) and 2 more organizations, listed in the Medicare section above. 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 Michael Ruygrok's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Ruygrok accept?
Health plans from Select Health list Michael Ruygrok 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 Michael Ruygrok was last updated on November 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Michael L Ruygrok, MD · NPI 1487944344
Emergency Medicine physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since April 13, 2011.
## Identity
- **NPI:** 1487944344 (Entity type: Individual)
- **Enumerated:** April 13, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 053563 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 BANNOCK ST, Denver, CO 80204-4507
- **Phone:** (303) 436-7142
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Denver Health And Hospital Authority (NPI 1477569838, Denver, CO); Usacs Of Colorado Inc (NPI 1104452952, Denver, CO); Usacs Community Emergency Services Of Colorado, Inc. (NPI 1811522972, Denver, CO); Usacs Observation Medicine Services Of Colorado Inc. (NPI 1518491232, Lakewood, CO); Premier Emergency Services, Inc (NPI 1457755688, Westminster, CO); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 2011
## Record status
- **NPPES last updated:** November 14, 2014
- **Other identifiers:** Other 024945 (CO); Medicaid 51270374 (CO); Medicare PIN 369349YK5Y (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1487944344) · Data from the CMS NPPES public registry.