MARY C PHUNG CRNA
NPI 1265841589
Nurse Anesthetist, Certified Registered in Beaver Dam, WI
About Mary C Phung Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY C PHUNG CRNA (NPI 1265841589) is an individual nurse anesthetist, certified registered in Beaver Dam, Wisconsin, licensed in Wisconsin (5896) and active in the NPI registry since August 2014. She is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center - Beaver Dam (mmc-bd), and maintains a secondary practice location in Berlin.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
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
Mary C Phung Crna 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 Mary Phung reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Beaver Dam, WI 53916
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 144 clinicians in this Medicare group
Plover, WI 54467
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1952890873 (Wisconsin)
- 2,476 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Neillsville, WI 54456
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1346239373 (Wisconsin)
- 1,283 clinicians in this Medicare group
Park Falls, WI 54552
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1700963048 (Wisconsin)
- 1,351 clinicians in this Medicare group
Chetek, WI 54728
- Reassigned Medicare billing, Wisconsin enrollment
- 1,616 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
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.
Marshfield Medical Center - Beaver Dam (mmc-Bd)
Acute Care Hospitals · Beaver Dam, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53916 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BEAVER DAM, WI 53916
BEAVER DAM, WI 53916
BEAVER DAM, WI 53916
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 Phung's NPI number?
The NPI number for Mary Phung is 1265841589. It was assigned to this individual provider in the NPPES registry on August 12, 2014. The provider is also known as Mary C Sherman.
Where is Mary Phung located?
Mary Phung practices at 707 S University Ave, Beaver Dam, WI 53916. The listed phone number is (920) 887-7181.
What is Mary Phung's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mary Phung enrolled in Medicare?
Yes. Mary Phung 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 Phung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Phung reassigns Medicare benefits to 7 organizations: Beaver Dam Community Hospitals Inc (Beaver Dam, WI), Association Of Hospital Anesthesiologists Sc (Neenah, WI), Mchs Hospitals, Inc. (Plover, WI), Marshfield Clinic Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI) 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 Mary Phung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Phung accept?
Health plans from CareSource (Common Ground Healthcare) and Sanford Health Plan list Mary Phung 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 Phung affiliated with any hospitals?
According to CMS data, Mary Phung is affiliated with Marshfield Medical Center - Beaver Dam (mmc-Bd).
When was this NPI record last updated?
The NPPES record for Mary Phung was last updated on March 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mary C Phung, CRNA · NPI 1265841589
Nurse Anesthetist, Certified Registered physician in Beaver Dam, Wisconsin. Individual provider, active in the CMS NPPES registry since August 12, 2014.
## Identity
- **NPI:** 1265841589 (Entity type: Individual)
- **Enumerated:** August 12, 2014
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 5896 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 707 S UNIVERSITY AVE, Beaver Dam, WI 53916-3027
- **Phone:** (920) 887-7181
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Beaver Dam Community Hospitals Inc (NPI 1235541202, Beaver Dam, WI); Association Of Hospital Anesthesiologists Sc (NPI 1720076474, Neenah, WI); Mchs Hospitals, Inc. (NPI 1386249894, Plover, WI); Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Memorial Hospital, Inc (NPI 1679746747, Neillsville, WI); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** March 18, 2024
- **Other identifiers:** Medicaid 1265841589 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1265841589) · Data from the CMS NPPES public registry.