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DR. WILLIAM CHRIS KOSTMAN M.D.
NPI 1912986506
Orthopaedic Surgery in Creve Coeur, MO

Active since January 11, 2006PECOS EnrolledAccepts Medicare Assignment
10448 OLD OLIVE ST RD, STE 200, CREVE COEUR, MO 63141(314) 597-8887(314) 447-9559 Get Directions Write a Review

NPPES record last updated: May 24, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 24, 2023, Dec 2, 2022, Oct 8, 2021 and 1 more (4 updates tracked since 2017).

About Dr. William Chris Kostman M.d. NPPES

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

DR. WILLIAM CHRIS KOSTMAN M.D. (NPI 1912986506) is an individual orthopaedic surgery provider in Creve Coeur, Missouri, licensed in Missouri (113686) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Missouri, Kansas City, School Of Medicine (1991).

NPPES Registry Identity

NPI1912986506
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. WILLIAM CHRIS KOSTMANCredential: M.D.
Location Address10448 OLD OLIVE ST RD, STE 200Creve Coeur, MO 63141
Mailing Address10448 Old Olive Street RdCreve Coeur, MO 63141-5967 · (314) 966-8887 · Fax (314) 966-3869
Phone(314) 597-8887
Fax(314) 447-9559
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 1991
Enumeration DateJanuary 11, 2006
Last NPPES UpdateMay 24, 20234 updates tracked since enumeration
NPPES CertifiedMay 24, 2023
✔ NPI 1912986506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in MO · 113686
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
10448 OLD OLIVE ST RD, Creve Coeur, MO 63141
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Other Identifiers 7

Other0900444MO · United Health Care
OtherG59783MO · Mercy #80
Other009219MO · Exclusive Choice
Other113052MO · Blue Cross Blue Shield
Other55165MO · Ghp
Other5596509MO · Aetna
Other335518MO · Healthlink

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, UnitedHealthcare.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. William Chris Kostman M.d. 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 ID9032168794
PECOS Enrollment IDI20130627000400
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 William Kostman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medbilling LLC
Same address
Orthopaedic Surgery
10448 OLD OLIVE STREET RD STE 200
Creve Coeur, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 2 clinicians in this Medicare group
NPI 1255835054 (314) 597-8887

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
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.

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 William Kostman's NPI number?

The NPI number for William Kostman is 1912986506. It was assigned to this individual provider in the NPPES registry on January 11, 2006.

Where is William Kostman located?

William Kostman practices at 10448 Old Olive St Rd Ste 200, Creve Coeur, MO 63141. The listed phone number is (314) 597-8887.

What is William Kostman's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is William Kostman enrolled in Medicare?

Yes. William Kostman 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 William Kostman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Kostman reassigns Medicare benefits to Medbilling LLC (Creve Coeur, 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 William Kostman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Kostman accept?

Health plans from Anthem Blue Cross and Blue Shield and UnitedHealthcare list William Kostman 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 William Kostman was last updated on May 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.