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DR. MARK R MILUNSKI MD
NPI 1255338893
Internal Medicine - Cardiovascular Disease in Saint Louis, MO

Active since June 28, 2005PECOS EnrolledAccepts Medicare Assignment
1020 N MASON RD, DIV IM CARDIOLOGY, STE 100, SAINT LOUIS, MO 63141(314) 362-1291(314) 362-4278 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Mark R Milunski Md NPPES

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

DR. MARK R MILUNSKI MD (NPI 1255338893) is an individual cardiovascular disease provider in Saint Louis, Missouri, licensed in Missouri (2017039933) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of Albany Medical College Of Union University (1984).

NPPES Registry Identity

NPI1255338893
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. MARK R MILUNSKICredential: MD
Location Address1020 N MASON RD, DIV IM CARDIOLOGY, STE 100Saint Louis, MO 63141-6666
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-1291 · Fax (314) 362-4278
Phone(314) 362-1291
Fax(314) 362-4278
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 1984
Enumeration DateJune 28, 2005
Last NPPES UpdateApril 17, 2025
✔ NPI 1255338893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MO · 2017039933
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal MedicineTaxonomy 207R00000X · License 2017039933 (MO)
1020 N MASON RD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 1

Medicaid200151631MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.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. Mark R Milunski Md 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 ID9537165998
PECOS Enrollment IDI20241223002768
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 Reassignments

4

Medicare enrollment records show Mark Milunski reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Heart Care Institute Affiliated Services, LLC
Same address
Rehabilitation, Cardiac Facilities
1020 N MASON RD, SUITE 200
Creve Coeur, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • Also billed through NPI 1144256785 (Missouri)
  • 26 clinicians in this Medicare group
NPI 1063756278 (314) 996-3140
Heart Care Institute LLC
Same address
Rehabilitation, Cardiac Facilities
1020 N MASON RD, SUITE 210
Creve Coeur, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 45 clinicians in this Medicare group
NPI 1881975308 (314) 996-3162
Washington University
11 mi
Multi-Specialty
660 S EUCLID AVE
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 1,133 clinicians in this Medicare group
NPI 1992746903 (314) 747-5192
Adventist Health System Sunbelt Inc
865 mi
Pediatrics
15502 STONEYBROOK WEST PKWY, SUITE 2-108
Winter Garden, FL 34787
  • Reassigned Medicare billing, Florida enrollment
  • 80 clinicians in this Medicare group
NPI 1477808046 (407) 656-0042

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 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260108
Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis County
Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260162
Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County
Emergency services

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260180
Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County
Emergency services

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
$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.

HEART CARE INSTITUTE AFFILIATED SERVICES, LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-3140
HEART CARE INSTITUTE AFFILIATED SERVICES, LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-3140
HEART CARE INSTITUTE LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 130
CREVE COEUR, MO 63141
St. Louis County (314) 996-3110
DR. LYNNE M SEACORD MD
Internal Medicine (Cardiovascular Disease)
1020 N MASON RD
SAINT LOUIS, MO 63141
St. Louis County (314) 362-1291
MRS. GAIL CHRISTINE CROFTON R.D., L.D., CDE
Dietitian, Registered
1020 N MASON RD, PROFESSIONAL BUILDING 3, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-8039
MRS. DAWN M SANDER ANP
Nurse Practitioner (Adult Health)
1020 N MASON RD, DIV SURG VASCULAR, STE 225
SAINT LOUIS, MO 63141
St. Louis County (314) 273-7373
DR. KORY JOSHUA LAVINE MD
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
1020 N MASON RD, DIV IM CARDIOLOGY, STE 100
SAINT LOUIS, MO 63141
St. Louis County (314) 362-1291
MRS. NANCY CLAIRE BRADLEY R.D., L.D., C.D.E.
Dietitian, Registered
1020 N MASON RD, PROFESSIONAL BUILDING 3, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-3206

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 Mark Milunski's NPI number?

The NPI number for Mark Milunski is 1255338893. It was assigned to this individual provider in the NPPES registry on June 28, 2005.

Where is Mark Milunski located?

Mark Milunski practices at 1020 N Mason Rd Div Im Cardiology, Ste 100, Saint Louis, MO 63141. The listed phone number is (314) 362-1291.

What is Mark Milunski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Mark Milunski enrolled in Medicare?

Yes. Mark Milunski 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 organizations bill Medicare for Mark Milunski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Milunski reassigns Medicare benefits to 4 organizations: Heart Care Institute Affiliated Services, LLC (Creve Coeur, MO), Heart Care Institute LLC (Creve Coeur, MO), Washington University (Saint Louis, MO) and Adventist Health System Sunbelt Inc (Winter Garden, FL). Each 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 Mark Milunski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Milunski accept?

Health plans from Cox HealthPlans list Mark Milunski 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 Mark Milunski affiliated with any hospitals?

According to CMS data, Mark Milunski is affiliated with Memorial Hospital, Barnes Jewish Hospital, Missouri Baptist Medical Center, Barnes-Jewish West County Hospital and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Mark Milunski was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.