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DR. NICHOLAS MUELLER PIENING MD
NPI 1073178786
Surgery - Vascular Surgery in Bridgeton, MO

Active since May 08, 2019PECOS Enrolled
12266 DE PAUL DR STE 305, BRIDGETON, MO 63044(314) 770-0991 Get Directions Write a Review

NPPES record last updated: June 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 2, 2026, May 8, 2019 (2 updates tracked since 2019).

About Dr. Nicholas Mueller Piening Md NPPES

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

DR. NICHOLAS MUELLER PIENING MD (NPI 1073178786) is an individual vascular surgery provider in Bridgeton, Missouri, licensed in Missouri (2025039102) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Ssm Health Depaul Hospital St Louis, and maintains a secondary practice location in Peoria.

NPPES Registry Identity

NPI1073178786
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameDR. NICHOLAS MUELLER PIENINGCredential: MD
Location Address12266 DE PAUL DR STE 305Bridgeton, MO 63044-2514
Mailing AddressPo Box 955534Saint Louis, MO 63195-5534
Phone(314) 770-0991
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMay 8, 2019
Last NPPES UpdateJune 2, 20262 updates tracked since enumeration
NPPES CertifiedJune 2, 2026
✔ NPI 1073178786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in MO · 2025039102
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
12266 DE PAUL DR STE 305, Bridgeton, MO 63044
Open in Google Maps ↗

Secondary Practice Location 1

Location 1800 NE Glen Oak AvePeoria, IL 61603-3255 · Phone (314) 288-8849

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, 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 (PECOS)

Dr. Nicholas Mueller Piening Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID244663136
PECOS Enrollment IDI20260615002243
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 Nicholas Piening reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ssm Medical Group, Inc.
16 mi
Multi-Specialty
1011 BOWLES AVE, SUITE 300
Fenton, MO 63026
  • Reassigned Medicare billing, Missouri enrollment
  • 697 clinicians in this Medicare group
NPI 1700966207 (636) 496-5000

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.

Ssm Health Depaul Hospital St Louis

Acute Care Hospitals · Bridgeton, MO
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260104
Location12303 Depaul DriveBridgeton, MO 63044 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63044 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.

Other Providers at the Same Location NPPES 11

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

DR. KYLE CHRISTENSEN D.O.
Surgery
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
THOMAS P BOCCHINI MD
Radiology (Vascular & Interventional Radiology)
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
DR. ANIL KUMAR SRIVASTAVA MD
Surgery
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
THANH-MAI NGUYEN VO M.D.
Internal Medicine (Nephrology)
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
DR. JACK ROH OAK MD
Surgery (Vascular Surgery)
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
CLAYTON R VOGT
Physician Assistant
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
MRS. JULIE D SCHREMMER FNP
Nurse Practitioner (Family)
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991
BETSY L KREBS D.O.
Surgery
12266 DE PAUL DR STE 305
BRIDGETON, MO 63044
St. Louis County (314) 770-0991

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 Nicholas Piening's NPI number?

The NPI number for Nicholas Piening is 1073178786. It was assigned to this individual provider in the NPPES registry on May 8, 2019.

Where is Nicholas Piening located?

Nicholas Piening practices at 12266 De Paul Dr Ste 305, Bridgeton, MO 63044. The listed phone number is (314) 770-0991.

What is Nicholas Piening's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Nicholas Piening enrolled in Medicare?

Yes. Nicholas Piening is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nicholas Piening's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Piening reassigns Medicare benefits to Ssm Medical Group, Inc. (Fenton, 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 Nicholas Piening's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicholas Piening accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Nicholas Piening 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 Nicholas Piening affiliated with any hospitals?

According to CMS data, Nicholas Piening is affiliated with Ssm Health Depaul Hospital St Louis.

When was this NPI record last updated?

The NPPES record for Nicholas Piening was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.