MARY MILLER
NPI 1447620703
Nurse Anesthetist, Certified Registered in Willimantic, CT
About Mary Miller NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY MILLER (NPI 1447620703) is an individual nurse anesthetist, certified registered in Willimantic, Connecticut, licensed in Connecticut (6781) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and maintains a secondary practice location in Lawrence.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Mary Miller 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
10Medicare enrollment records show Mary Miller reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Willimantic, CT 06226
- Reassigned Medicare billing, Connecticut enrollment
- 91 clinicians in this Medicare group
Milford, MA 01757
- Reassigned Medicare billing, Massachusetts enrollment
- 66 clinicians in this Medicare group
Fall River, MA 02720
- Reassigned Medicare billing, Massachusetts enrollment
- 192 clinicians in this Medicare group
Waltham, MA 02451
- Reassigned Medicare billing, Massachusetts enrollment
- 90 clinicians in this Medicare group
Fairhaven, MA 02719
- Reassigned Medicare billing, Massachusetts enrollment
- 1,144 clinicians in this Medicare group
Patchogue, NY 11772
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Lowell, MA 01854
- Reassigned Medicare billing, Massachusetts enrollment
- 123 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 57 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 72 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 189 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lawrence General Hospital
Acute Care Hospitals · Lawrence, MAMilford Regional Medical Center
Acute Care Hospitals · Milford, MACatholic Medical Center
Acute Care Hospitals · Manchester, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06226 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.
Reported Quality Measures
Other Providers at the Same Location NPPES
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 Mary Miller's NPI number?
The NPI number for Mary Miller is 1447620703. It was assigned to this individual provider in the NPPES registry on September 30, 2015.
Where is Mary Miller located?
Mary Miller practices at 1185 Main St Ste 4, Willimantic, CT 06226. The listed phone number is (860) 423-7556.
What is Mary Miller's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Miller enrolled in Medicare?
Yes. Mary Miller 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 Mary Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Miller reassigns Medicare benefits to 10 organizations: Anesthesia Associates Of Willimantic PC (Willimantic, CT), Milford Anesthesia Consultants PC (Milford, MA), North American Partners In Anesthesia Massachusetts LLC (Fall River, MA), Jjm Medical Services, PC (Waltham, MA), Southcoast Physicians Group, Inc. (Fairhaven, MA) and 5 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 Mary Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Miller accept?
Health plans from WellSense Health Plan list Mary Miller 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 Mary Miller affiliated with any hospitals?
According to CMS data, Mary Miller is affiliated with Lawrence General Hospital, Milford Regional Medical Center and Catholic Medical Center.
When was this NPI record last updated?
The NPPES record for Mary Miller was last updated on April 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Mary Miller · NPI 1447620703
Nurse Anesthetist, Certified Registered physician in Willimantic, Connecticut. Individual provider, active in the CMS NPPES registry since September 30, 2015.
## Identity
- **NPI:** 1447620703 (Entity type: Individual)
- **Enumerated:** September 30, 2015
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 6781 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 1185 MAIN ST STE 4, Willimantic, CT 06226-2093
- **Phone:** (860) 423-7556 · **Fax:** (860) 423-4694
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Anesthesia Associates Of Willimantic PC (NPI 1306905799, Willimantic, CT); Milford Anesthesia Consultants PC (NPI 1437784261, Milford, MA); North American Partners In Anesthesia Massachusetts LLC (NPI 1457867020, Fall River, MA); Jjm Medical Services, PC (NPI 1952548265, Waltham, MA); Southcoast Physicians Group, Inc. (NPI 1336137629, Fairhaven, MA); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** April 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1447620703) · Data from the CMS NPPES public registry.