1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Nurse Anesthetist Certified Registered
  6. NPI Profile

ETHAN J DIESTLER CRNA
NPI 1700732807
Nurse Anesthetist, Certified Registered in Saint Louis, MO

Active since March 10, 2026Accepts Medicare Assignment
10010 KENNERLY RD, SAINT LOUIS, MO 63128(314) 525-1000(636) 386-7810 Get Directions Write a Review

NPPES record last updated: May 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 14, 2026, Mar 10, 2026 (2 updates tracked since 2026).

About Ethan J Diestler Crna NPPES

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

ETHAN J DIESTLER CRNA (NPI 1700732807) is an individual nurse anesthetist, certified registered in Saint Louis, Missouri, licensed in Missouri (2026020569) and active in the NPI registry since March 2026. He is affiliated with Mercy Hospital South, maintains a secondary practice location in Saint Louis, and is a graduate of Other (2026).

NPPES Registry Identity

NPI1700732807
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameETHAN J DIESTLERCredential: CRNA
Location Address10010 KENNERLY RDSaint Louis, MO 63128-2106
Mailing AddressPo Box 22407Saint Louis, MO 63126-0407 · (636) 386-7222 · Fax (636) 386-7810
Phone(314) 525-1000
Fax(636) 386-7810
Sole ProprietorNo
Medical School CMSOtherGraduated 2026
Enumeration DateMarch 10, 2026
Last NPPES UpdateMay 14, 20262 updates tracked since enumeration
NPPES CertifiedMay 14, 2026
✔ NPI 1700732807 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 MO · 2026020569
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.
10010 KENNERLY RD, Saint Louis, MO 63128
Open in Google Maps ↗

Secondary Practice Location 1

Location 112345 W Bend DrSaint Louis, MO 63128-2182 · Phone (314) 722-2530 · Fax (636) 386-7810

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

Ethan J Diestler 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 ID1052880945
PECOS Enrollment IDI20260520002465

Medicare Billing Reassignment

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

South County Anesthesia Associates, Ltd.
0.1 mi
Anesthesiology
10010 KENNERLY RD
Saint Louis, MO 63128
  • Reassigned Medicare billing, Missouri enrollment
  • 106 clinicians in this Medicare group
NPI 1821031659 (636) 386-7222

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.

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63128 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
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.

JEREMY STEPHEN COLYER AA
Anesthesiologist Assistant
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (636) 386-7222
REHABILITATION MEDICINE SPECIALISTS, INC.
Physical Medicine & Rehabilitation
10010 KENNERLY RD, 4TH FLOOR - ACUTE REHAB
SAINT LOUIS, MO 63128
St. Louis County (314) 525-4522
DR. MICHAEL D. BAZZANI M.D.
Radiology (Diagnostic Radiology)
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (314) 525-1165
DR. YUNHONG ZHANG MD
Anesthesiology
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (314) 525-1000
REBECCA SUSAN HOPKINS R.D., L.D.
Dietitian, Registered
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (314) 525-1266
RAHUL GUPTA MD
Emergency Medicine
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (314) 525-1906
YIFU F ZHU AA
Anesthesiologist Assistant
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (314) 525-1000
LADONNA L DARKS CRNA
Nurse Anesthetist, Certified Registered
10010 KENNERLY RD
SAINT LOUIS, MO 63128
St. Louis County (636) 386-7222

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 Ethan Diestler's NPI number?

The NPI number for Ethan Diestler is 1700732807. It was assigned to this individual provider in the NPPES registry on March 10, 2026.

Where is Ethan Diestler located?

Ethan Diestler practices at 10010 Kennerly Rd, Saint Louis, MO 63128. The listed phone number is (314) 525-1000.

What is Ethan Diestler's specialty?

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

Is Ethan Diestler enrolled in Medicare?

Yes. Ethan Diestler 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 Ethan Diestler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Diestler reassigns Medicare benefits to South County Anesthesia Associates, Ltd. (Saint Louis, MO). 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 Ethan Diestler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Ethan Diestler affiliated with any hospitals?

According to CMS data, Ethan Diestler is affiliated with Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Ethan Diestler was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.