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ABIGAIL CARSON
NPI 1225901101
Nurse Anesthetist, Certified Registered in Prosser, WA

Active since September 26, 2025Accepts Medicare Assignment
200 PROSSER HEALTH DR, PROSSER, WA 99350(509) 786-2222 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Abigail Carson NPPES

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

ABIGAIL CARSON (NPI 1225901101) is an individual nurse anesthetist, certified registered in Prosser, Washington, licensed in Washington (AP70048756) and active in the NPI registry since September 2025. She is affiliated with Miami Valley Hospital and is a graduate of Other (2025).

NPPES Registry Identity

NPI1225901101
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameABIGAIL CARSON
Location Address200 PROSSER HEALTH DRProsser, WA 99350-7832
Mailing Address200 Prosser Health DrProsser, WA 99350-7832
Phone(509) 786-2222
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 26, 2025
NPPES CertifiedSeptember 25, 2025
✔ NPI 1225901101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in WA · AP70048756
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.
200 PROSSER HEALTH DR, Prosser, WA 99350
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, CareSource.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

Abigail Carson 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 ID5395221352
PECOS Enrollment IDI20260108003552, I20260326000415

Medicare Billing Reassignments

2

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

Prosser Public Hospital District Of Benton County
Same address
Critical Access
200 PROSSER HEALTH DR
Prosser, WA 99350
  • Reassigned Medicare billing, Washington enrollment
  • Also billed through NPI 1306897681 (Washington)
  • 232 clinicians in this Medicare group
NPI 1013956259 (509) 786-2222
Phs Anesthesia Billing, LLC
1,843 mi
Anesthesiology
1 MEDICAL CENTER DR
Middletown, OH 45005
  • Reassigned Medicare billing, Ohio enrollment
  • 299 clinicians in this Medicare group
NPI 1578361044 (513) 974-2111

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 2

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

Miami Valley Hospital

Acute Care Hospitals · Dayton, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360051
LocationOne Wyoming StreetDayton, OH 45409 · Montgomery County
Emergency services Birthing friendly

Prosser Memorial Hospital

Critical Access Hospitals · Prosser, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501312
Location723 Memorial StreetProsser, WA 99350 · Benton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99350 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
$130.99 typical visit price
range $57.27 – $172.80
Typical copayment $32.74 (range $14.31 – $43.20)
Most-billed visit code 99204
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
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 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PROSSER PUBLIC HOSPITAL DISTRICT OF BENTON COUNTY
General Acute Care Hospital (Critical Access)
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
DR. KALEE LARSEN MD
Internal Medicine (Rheumatology)
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
DR. JESSE COLE WEALING DO
Pediatrics
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
PROSSER PUBLIC HOSPITAL DISTRICT OF BENTON COUNTY
General Acute Care Hospital (Critical Access)
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
LANDON JAMES WILLIAMSON DNAP
Nurse Anesthetist, Certified Registered
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
COLTON J RINER DO
Physical Medicine & Rehabilitation
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
ANDREA PADILLA OTR/L
Occupational Therapist
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222
ASHLEY MARIE OLSON
Registered Nurse
200 PROSSER HEALTH DR
PROSSER, WA 99350
Benton County (509) 786-2222

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 Abigail Carson's NPI number?

The NPI number for Abigail Carson is 1225901101. It was assigned to this individual provider in the NPPES registry on September 26, 2025.

Where is Abigail Carson located?

Abigail Carson practices at 200 Prosser Health Dr, Prosser, WA 99350. The listed phone number is (509) 786-2222.

What is Abigail Carson's specialty?

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

Is Abigail Carson enrolled in Medicare?

Yes. Abigail Carson 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 Abigail Carson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Abigail Carson reassigns Medicare benefits to 2 organizations: Prosser Public Hospital District Of Benton County (Prosser, WA) and Phs Anesthesia Billing, LLC (Middletown, OH). 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 Abigail Carson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Abigail Carson accept?

Health plans from Ambetter Health and CareSource list Abigail Carson 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 Abigail Carson affiliated with any hospitals?

According to CMS data, Abigail Carson is affiliated with Miami Valley Hospital and Prosser Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Abigail Carson was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.