ANDREA L GRILLI MD
NPI 1003893298
Anesthesiology in Denver, CO
About Andrea L Grilli Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREA L GRILLI MD (NPI 1003893298) is an individual anesthesiology provider in Denver, Colorado, licensed in Colorado (41600) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with St. Agnes Hospital Hospice, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 9
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
Andrea L Grilli 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
6Medicare enrollment records show Andrea Grilli reassigns Medicare billing to 6 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
- 160 clinicians in this Medicare group
Denver, CO 80206
- Reassigned Medicare billing, Colorado enrollment
- 281 clinicians in this Medicare group
Denver, CO 80220
- Reassigned Medicare billing, Colorado enrollment
- 37 clinicians in this Medicare group
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- 971 clinicians in this Medicare group
Castle Rock, CO 80104
- Reassigned Medicare billing, Colorado enrollment
- 28 clinicians in this Medicare group
Beaver Dam, WI 53916
- Reassigned Medicare billing, Wisconsin enrollment
- 606 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St. Agnes Hospital Hospice
Acute Care Hospitals · Fond Du Lac, WIMedicare 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.
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 Andrea Grilli's NPI number?
The NPI number for Andrea Grilli is 1003893298. It was assigned to this individual provider in the NPPES registry on December 28, 2005.
Where is Andrea Grilli located?
Andrea Grilli practices at 455 Sherman Suite 510, Denver, CO 80203. The listed phone number is (303) 377-6825.
What is Andrea Grilli's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Andrea Grilli enrolled in Medicare?
Yes. Andrea Grilli 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 Andrea Grilli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrea Grilli reassigns Medicare benefits to 6 organizations: Hospitalist Medicine Physicians Of Colorado - Denver PC (Denver, CO), National Jewish Health (Denver, CO), Denver Digestive Health Specialists Inc (Denver, CO), Us Anesthesia Partners Of Colorado Inc. (Greenwood Village, CO), Prime Anesthesia PLLC (Castle Rock, CO) and 1 more organization, 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 Andrea Grilli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrea Grilli accept?
Health plans from Oscar Insurance Company list Andrea Grilli 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.
Is Andrea Grilli affiliated with any hospitals?
According to CMS data, Andrea Grilli is affiliated with St. Agnes Hospital Hospice.
When was this NPI record last updated?
The NPPES record for Andrea Grilli was last updated on April 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Andrea L Grilli, MD · NPI 1003893298
Anesthesiology physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since December 28, 2005.
## Identity
- **NPI:** 1003893298 (Entity type: Individual)
- **Enumerated:** December 28, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 41600 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 455 SHERMAN, SUITE 510, Denver, CO 80203-4405
- **Phone:** (303) 377-6825 · **Fax:** (303) 780-0787
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Hospitalist Medicine Physicians Of Colorado - Denver PC (NPI 1588453575, Denver, CO); National Jewish Health (NPI 1326015777, Denver, CO); Denver Digestive Health Specialists Inc (NPI 1447278981, Denver, CO); Us Anesthesia Partners Of Colorado Inc. (NPI 1922365782, Greenwood Village, CO); Prime Anesthesia PLLC (NPI 1427685247, Castle Rock, CO); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** April 18, 2013
- **Other identifiers:** Medicare UPIN H81423 (CO); Medicaid 100641680A (KS); Medicaid 10876324 (CO); and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1003893298) · Data from the CMS NPPES public registry.