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MARIANNA M HERRERA CRNA
NPI 1225565302
Nurse Anesthetist, Certified Registered in Hartford, WI

Active since May 19, 2017PECOS EnrolledAccepts Medicare Assignment
1032 E SUMNER ST, HARTFORD, WI 53027(262) 673-2300 Get Directions Write a Review

NPPES record last updated: September 21, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Jan 11, 2022, Apr 14, 2021 and 2 more (5 updates tracked since 2017).

About Marianna M Herrera Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIANNA M HERRERA CRNA (NPI 1225565302) is an individual nurse anesthetist, certified registered in Hartford, Wisconsin, licensed in Wisconsin (7973) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Aurora Medical Ctr Washington County, and maintains a secondary practice location in Waupun.

NPPES Registry Identity

NPI1225565302
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameMARIANNA M HERRERACredential: CRNA
Location Address1032 E SUMNER STHartford, WI 53027-1608
Mailing AddressPo Box 735044Chicago, IL 60673-5044
Phone(262) 673-2300
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMay 19, 2017
Last NPPES UpdateSeptember 21, 20235 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2023
✔ NPI 1225565302 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in WI · 7973
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered NurseTaxonomy 163W00000X · License 175946 (WI)
1032 E SUMNER ST, Hartford, WI 53027
Open in Google Maps ↗

Secondary Practice Location 1

Location 1620 W Brown StWaupun, WI 53963-1702 · Phone (920) 324-5581

Other Identifiers 1

Medicaid100071408WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).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

Marianna M Herrera 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.

PECOS PAC ID2668747577
PECOS Enrollment IDI20171003005572
Eligible to Order & Refer✔ Part B Labs & Imaging– Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Marianna Herrera reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Agnesian Healthcare
25 mi
Mental Health (Including Community Mental Health Center)
200 FRONT ST, SUITE 3D
Beaver Dam, WI 53916
  • Reassigned Medicare billing, Wisconsin enrollment
  • 606 clinicians in this Medicare group
NPI 1700817657 (920) 885-2780
Aurora Medical Group, Inc.
29 mi
Obstetrics & Gynecology
8905 W LINCOLN AVE, SUITE 515
West Allis, WI 53227
  • Reassigned Medicare billing, Wisconsin enrollment
  • 4,609 clinicians in this Medicare group
NPI 1457592735 (414) 328-8650

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Aurora Medical Ctr Washington County

Acute Care Hospitals · Hartford, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520038
Location1032 E Sumner StHartford, WI 53027 · Washington County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53027 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

HEATHER LUDY
Clinical Nurse Specialist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7616
JENNA L KOEPPEL P.T.
Physical Therapist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-4300
JOSHUA DILDAY D.O.
Surgery
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 673-2300
MRS. HEIDI RENEE LUMINA RD, CD, CNSC
Dietitian, Registered
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7293
MICHELE MANDEL
Occupational Therapist (Hand)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-4300
JANET L TEMMER PT
Physical Therapist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7000
LARA N MRAK MD
Radiology (Diagnostic Radiology)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 673-2300
MAYE R BERROYA MD
Preventive Medicine (Undersea and Hyperbaric Medicine)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7213

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 Marianna Herrera's NPI number?

The NPI number for Marianna Herrera is 1225565302. It was assigned to this individual provider in the NPPES registry on May 19, 2017.

Where is Marianna Herrera located?

Marianna Herrera practices at 1032 E Sumner St, Hartford, WI 53027. The listed phone number is (262) 673-2300.

What is Marianna Herrera's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Marianna Herrera enrolled in Medicare?

Yes. Marianna Herrera 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 Marianna Herrera's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marianna Herrera reassigns Medicare benefits to 2 organizations: Agnesian Healthcare (Beaver Dam, WI) and Aurora Medical Group, Inc. (West Allis, WI). 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 Marianna Herrera's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marianna Herrera accept?

Health plans from CareSource (Common Ground Healthcare) list Marianna Herrera 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 Marianna Herrera affiliated with any hospitals?

According to CMS data, Marianna Herrera is affiliated with Aurora Medical Ctr Washington County.

When was this NPI record last updated?

The NPPES record for Marianna Herrera was last updated on September 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.