DR. ANDREW A. PROOS MD
NPI 1306839428
Anesthesiology in Providence, RI
About Dr. Andrew A. Proos Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW A. PROOS MD (NPI 1306839428) is an individual anesthesiology provider in Providence, Rhode Island, licensed in Rhode Island (MD11925) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Milford Regional Medical Center, and is a graduate of University Of Massachusetts Medical School (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Andrew A. Proos 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
2Medicare enrollment records show Andrew Proos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milford, MA 01757
- Reassigned Medicare billing, Massachusetts enrollment
- 66 clinicians in this Medicare group
Framingham, MA 01702
- Reassigned Medicare billing, Massachusetts enrollment
- 42 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 4
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.
Milford Regional Medical Center
Acute Care Hospitals · Milford, MAMedicare 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.
PROVIDENCE, RI 02906
PROVIDENCE, RI 02906
PROVIDENCE, RI 02906
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 Andrew Proos's NPI number?
The NPI number for Andrew Proos is 1306839428. It was assigned to this individual provider in the NPPES registry on August 24, 2005.
Where is Andrew Proos located?
Andrew Proos practices at 164 Summit Ave, Providence, RI 02906. The listed phone number is (401) 793-4574.
What is Andrew Proos's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Andrew Proos enrolled in Medicare?
Yes. Andrew Proos 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 Andrew Proos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Proos reassigns Medicare benefits to 2 organizations: Milford Anesthesia Consultants PC (Milford, MA) and Metrowest Anesthesia Associates LLC (Framingham, MA). 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 Andrew Proos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Proos accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Andrew Proos 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 Andrew Proos affiliated with any hospitals?
According to CMS data, Andrew Proos is affiliated with Milford Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Andrew Proos was last updated on November 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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. Andrew A. Proos, MD · NPI 1306839428
Anesthesiology physician in Providence, Rhode Island. Individual provider, active in the CMS NPPES registry since August 24, 2005.
## Identity
- **NPI:** 1306839428 (Entity type: Individual)
- **Enumerated:** August 24, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD11925 (Rhode Island)
- **Sole proprietor:** No
## Practice location
- **Address:** 164 SUMMIT AVE, Providence, RI 02906-2853
- **Phone:** (401) 793-4574 · **Fax:** (401) 454-1321
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Milford Anesthesia Consultants PC (NPI 1437784261, Milford, MA); Metrowest Anesthesia Associates LLC (NPI 1104339902, Framingham, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 1983
## Record status
- **NPPES last updated:** November 7, 2008
- **Other identifiers:** Medicare UPIN D99811
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Source: [NPI Profile](https://npiprofile.com/npi/1306839428) · Data from the CMS NPPES public registry.