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DR. JOHN MARK KOESTER D.O.
NPI 1811978646
Emergency Medicine in Des Moines, IA

Active since November 09, 2005PECOS Enrolled
1200 PLEASANT ST, DES MOINES, IA 50309(515) 241-6212 Get Directions Write a Review

NPPES record last updated: May 26, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. John Mark Koester D.o. NPPES

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

DR. JOHN MARK KOESTER D.O. (NPI 1811978646) is an individual emergency medicine provider in Des Moines, Iowa, licensed in Iowa (02137) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Des Moines.

NPPES Registry Identity

NPI1811978646
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. JOHN MARK KOESTERCredential: D.O.
Location Address1200 PLEASANT STDes Moines, IA 50309-1406
Mailing Address3497 Ne 78th AveAnkeny, IA 50021-9377 · (515) 965-3632 · Fax (515) 965-3634
Phone(515) 241-6212
Sole ProprietorNo
Enumeration DateNovember 9, 2005
Last NPPES UpdateMay 26, 2020
NPPES CertifiedMay 26, 2020
✔ NPI 1811978646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IA · 02137
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1200 PLEASANT ST, Des Moines, IA 50309
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Secondary Practice Location 1

Location 13600 30th StDes Moines, IA 50310-5876 · Phone (515) 699-5999 ext. 4817 · Fax (515) 699-5912

Other Identifiers 2

Other1811978646IA · Blue Shield
Medicaid1811978646IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Mark Koester D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50309 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
$81.84 typical visit price
range $52.96 – $161.40
Typical copayment $20.46 (range $13.24 – $40.35)
Most-billed visit code 99203
Established Patient
$94.05 typical visit price
range $16.91 – $131.98
Typical copayment $23.51 (range $4.22 – $32.99)
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 20

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

CENTRAL IOWA HOSPITAL CORPORATION
Pharmacy
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-5936
CATHERINE P MCNEILL M.D.
Pediatrics
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-6611
CENTRAL IOWA HOSPITAL CORPORATION
Rehabilitation Unit
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-6212
DR. LISA I HARDISTY M.D.
Pediatrics
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-5926
BROOKE JOHNSON D.O.
Emergency Medicine
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-6262
JAMIE LYNN PIOTROWSKI NP-C
Nurse Practitioner
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 524-1621
BILAL HASAN BAIG DO
Internal Medicine
1200 PLEASANT ST
DES MOINES, IA 50309
Polk County (515) 241-6636
HOLLEY A BZDEGA MD
Pediatrics (Neonatal-Perinatal Medicine)
1200 PLEASANT ST, NEONATOLOGY
DES MOINES, IA 50309
Polk County (515) 241-4444

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 John Koester's NPI number?

The NPI number for John Koester is 1811978646. It was assigned to this individual provider in the NPPES registry on November 9, 2005.

Where is John Koester located?

John Koester practices at 1200 Pleasant St, Des Moines, IA 50309. The listed phone number is (515) 241-6212.

What is John Koester's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is John Koester enrolled in Medicare?

Yes. John Koester is registered in the Medicare PECOS enrollment system.

What insurance does John Koester accept?

Health plans from Medica list John Koester 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.

When was this NPI record last updated?

The NPPES record for John Koester was last updated on May 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.