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GRETCHEN MARY KEESLAR NP
NPI 1821956855
Nurse Practitioner - Adult Health in Indianapolis, IN

Active since January 09, 2026PECOS EnrolledAccepts Medicare Assignment
8111 S EMERSON AVE STE 105, INDIANAPOLIS, IN 46237(317) 528-5500(317) 528-6316 Get Directions Write a Review

NPPES record last updated: March 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 10, 2026, Jan 9, 2026 (2 updates tracked since 2026).

About Gretchen Mary Keeslar Np NPPES

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

GRETCHEN MARY KEESLAR NP (NPI 1821956855) is an individual adult health provider in Indianapolis, Indiana, licensed in Indiana (71017720A) and active in the NPI registry since January 2026. She is enrolled in Medicare PECOS, is affiliated with Franciscan Health Indianapolis, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1821956855
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameGRETCHEN MARY KEESLARCredential: NP
Location Address8111 S EMERSON AVE STE 105Indianapolis, IN 46237-8601
Mailing AddressPo Box 781076Detroit, MI 48278-1008 · (317) 528-4800 · Fax (317) 865-1479
Phone(317) 528-5500
Fax(317) 528-6316
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJanuary 9, 2026
Last NPPES UpdateMarch 10, 20262 updates tracked since enumeration
NPPES CertifiedMarch 10, 2026
✔ NPI 1821956855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in IN · 71017720A
Also ListedNurse PractitionerTaxonomy 363L00000X · License 28182978A (IN)
8111 S EMERSON AVE STE 105, Indianapolis, IN 46237
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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

Gretchen Mary Keeslar Np 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 ID8325522113
PECOS Enrollment IDI20260319002151
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 Reassignment

Medicare enrollment records show Gretchen Keeslar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Indiana Blood And Marrow Transplantation LLC
Same address
Clinic/Center
8111 S EMERSON AVE, SUITE 105
Indianapolis, IN 46237
  • Reassigned Medicare billing, Indiana enrollment
  • 11 clinicians in this Medicare group
NPI 1275647083 (317) 528-5500

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.

Franciscan Health Indianapolis

Acute Care Hospitals · Indianapolis, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number150162
Location8111 S Emerson AveIndianapolis, IN 46237 · Marion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46237 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
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
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 7

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

SAMANTHA JO LEVERING FNP-C
Nurse Practitioner
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500
DR. WALED BAHAJ M.D.
Internal Medicine
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500
DR. JOSEPHINE N EMOLE M.D.
Internal Medicine (Hematology)
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500
ANAND TANDRA M.D.
Internal Medicine (Hematology & Oncology)
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500
MS. LEYLA O SHUNE MD
Internal Medicine (Hematology)
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500
MAXWELL STONE PHARMD
Pharmacist (Oncology)
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-7190
TAYLA MARIE NIDEY FNP-C
Nurse Practitioner (Family)
8111 S EMERSON AVE STE 105
INDIANAPOLIS, IN 46237
Marion County (317) 528-5500

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 Gretchen Keeslar's NPI number?

The NPI number for Gretchen Keeslar is 1821956855. It was assigned to this individual provider in the NPPES registry on January 9, 2026.

Where is Gretchen Keeslar located?

Gretchen Keeslar practices at 8111 S Emerson Ave Ste 105, Indianapolis, IN 46237. The listed phone number is (317) 528-5500.

What is Gretchen Keeslar's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Gretchen Keeslar enrolled in Medicare?

Yes. Gretchen Keeslar 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 organization bills Medicare for Gretchen Keeslar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Keeslar reassigns Medicare benefits to Indiana Blood And Marrow Transplantation LLC (Indianapolis, IN). The 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 Gretchen Keeslar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gretchen Keeslar accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Gretchen Keeslar 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 Gretchen Keeslar affiliated with any hospitals?

According to CMS data, Gretchen Keeslar is affiliated with Franciscan Health Indianapolis.

When was this NPI record last updated?

The NPPES record for Gretchen Keeslar was last updated on March 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.