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DR. ASHLEY NICOLE AGERSON MD
NPI 1265693220
Anesthesiology in Grand Rapids, MI

Active since June 23, 2008PECOS EnrolledAccepts Medicare Assignment
3333 EVERGREEN DR NE, GRAND RAPIDS, MI 49525(616) 364-4200(616) 364-7347 Get Directions Write a Review

NPPES record last updated: October 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 18, 2025, Dec 9, 2021, Feb 17, 2021 (3 updates tracked since 2021).

About Dr. Ashley Nicole Agerson Md NPPES

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

DR. ASHLEY NICOLE AGERSON MD (NPI 1265693220) is an individual anesthesiology provider in Grand Rapids, Michigan, licensed in Michigan (4301104907) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Baptist Health Louisville, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1265693220
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. ASHLEY NICOLE AGERSONCredential: MD
Location Address3333 EVERGREEN DR NEGrand Rapids, MI 49525-9493
Mailing Address3333 Evergreen Dr NeGrand Rapids, MI 49525-9493 · (616) 364-4200 · Fax (616) 364-7347
Phone(616) 364-4200
Fax(616) 364-7347
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2005
Enumeration DateJune 23, 2008
Last NPPES UpdateOctober 28, 20253 updates tracked since enumeration
NPPES CertifiedOctober 28, 2025
✔ NPI 1265693220 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in MI · 4301104907✔ Licensed in MN · 81159✔ Licensed in KY · C4728
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
3333 EVERGREEN DR NE, Grand Rapids, MI 49525
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12680 Leonard St NE Ste 3Grand Rapids, MI 49525-6902 · Phone (616) 364-4200 · Fax (616) 364-7347
Location 2100 Michigan St NEGrand Rapids, MI 49503-2560 · Phone (616) 364-4200

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.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. Ashley Nicole Agerson 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.

PECOS PAC ID7517140957
PECOS Enrollment IDI20140627000129, I20251209002865
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

8

Medicare enrollment records show Ashley Agerson reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

West Michigan Anesthesia, PC
Same address
Anesthesiology
3333 EVERGREEN DR NE
Grand Rapids, MI 49525
  • Reassigned Medicare billing, Michigan enrollment
  • 74 clinicians in this Medicare group
NPI 1225016926 (616) 364-4200
Anesthesia Medical Consultants, PC
0.1 mi
Anesthesiology
3333 EVERGREEN DR NE
Grand Rapids, MI 49525
  • Reassigned Medicare billing, Michigan enrollment
  • 117 clinicians in this Medicare group
NPI 1063710689 (616) 364-4200
Sparrow Carson Hospital
20 mi
Rural Health
1014 E WASHINGTON ST
Greenville, MI 48838
  • Reassigned Medicare billing, Michigan enrollment
  • 215 clinicians in this Medicare group
NPI 1689644403 (616) 754-7145
Sparrow Ionia Hospital
26 mi
Family Medicine
550 E WASHINGTON ST FL 2
Ionia, MI 48846
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1700820065 (Michigan)
  • 317 clinicians in this Medicare group
NPI 1033271143 (616) 523-1600
Sparrow Eaton Hospital
46 mi
Adolescent Medicine
820 SPRING ST STE 100
Grand Ledge, MI 48837
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1942254529 (Michigan)
  • 137 clinicians in this Medicare group
NPI 1841079787 (517) 925-5590
Sparrow Clinton Hospital
52 mi
Critical Access
805 S OAKLAND ST
Saint Johns, MI 48879
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1326138173 (Michigan)
  • 116 clinicians in this Medicare group
NPI 1093809824 (989) 224-6881
Edward W Sparrow Hospital Association
57 mi
Obstetrics & Gynecology
1540 LAKE LANSING RD, SUITE 205
Lansing, MI 48912
  • Reassigned Medicare billing, Michigan enrollment
  • 265 clinicians in this Medicare group
NPI 1033513148 (517) 913-3910
Professional Anesthesia Services Of Kentucky PLLC
329 mi
Anesthesiology
200 E CHESTNUT ST
Louisville, KY 40202
  • Reassigned Medicare billing, Kentucky enrollment
  • 526 clinicians in this Medicare group
NPI 1992212807 (214) 687-0001

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
19 services13 patients
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
16 services16 patients
Anesthesia for procedure on eyelid 00103
Anesthesia for an eyelid procedure helps ensure comfort and painlessness during the operation. It's typically a local anesthetic, applied to numb your eyelid and surrounding area. You'll likely be awake but won't feel any discomfort. It's a safe, routine part of many eye procedures.
14 services14 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Baptist Health Louisville

Acute Care Hospitals · Louisville, KY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180130
Location4000 Kresge WayLouisville, KY 40207 · Jefferson County
Emergency services Birthing friendly

University Of Michigan Health - West

Acute Care Hospitals · Wyoming, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230236
Location5900 Byron Center Avenue, SWWyoming, MI 49519 · Kent County
Emergency services Birthing friendly

Essentia Health St Mary's Medical Center

Acute Care Hospitals · Duluth, MN
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240002
Location402 East Second StreetDuluth, MN 55805 · St. Louis County
Emergency services Birthing friendly

Essentia Health Duluth

Acute Care Hospitals · Duluth, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240019
Location502 East Second StreetDuluth, MN 55805 · St. Louis County
Birthing friendly

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.

MR. JEFFREY RYAN HALL AA
Anesthesiologist Assistant
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
MRS. LINDSAY E MCKELVEY CRNA
Nurse Anesthetist, Certified Registered
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
DR. JEFFREY M RICKETTS DO
Anesthesiology
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
MRS. HEATHER M MONTGOMERY-KANITZ CRNA
Nurse Anesthetist, Certified Registered
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
DR. VIVIAN NNENNA ONYEWUCHE M.D.
Anesthesiology
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
DR. ERIC LEE LARSON MD
Anesthesiology
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
DR. ANNA MARIA UITVLUGT MD
Anesthesiology
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200
ANESTHESIA MEDICAL CONSULTANTS, PC
Anesthesiology
3333 EVERGREEN DR NE
GRAND RAPIDS, MI 49525
Kent County (616) 364-4200

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 Ashley Agerson's NPI number?

The NPI number for Ashley Agerson is 1265693220. It was assigned to this individual provider in the NPPES registry on June 23, 2008.

Where is Ashley Agerson located?

Ashley Agerson practices at 3333 Evergreen Dr NE, Grand Rapids, MI 49525. The listed phone number is (616) 364-4200.

What is Ashley Agerson's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Ashley Agerson enrolled in Medicare?

Yes. Ashley Agerson 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 Ashley Agerson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ashley Agerson reassigns Medicare benefits to 8 organizations: West Michigan Anesthesia, PC (Grand Rapids, MI), Anesthesia Medical Consultants, PC (Grand Rapids, MI), Sparrow Carson Hospital (Greenville, MI), Sparrow Ionia Hospital (Ionia, MI), Sparrow Eaton Hospital (Grand Ledge, MI) and 3 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 Ashley Agerson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ashley Agerson accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Ashley Agerson 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 Ashley Agerson affiliated with any hospitals?

According to CMS data, Ashley Agerson is affiliated with Baptist Health Louisville, University Of Michigan Health - West, Essentia Health St Mary's Medical Center and Essentia Health Duluth.

When was this NPI record last updated?

The NPPES record for Ashley Agerson was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.