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MARC ST CYR MD
NPI 1356907414
Emergency Medicine in Paoli, PA

Active since May 14, 2019PECOS EnrolledAccepts Medicare Assignment
255 W LANCASTER AVE, PAOLI, PA 19301(484) 565-1000 Get Directions Write a Review

NPPES record last updated: November 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 10, 2025, May 14, 2019 (2 updates tracked since 2019).

About Marc St Cyr Md NPPES

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

MARC ST CYR MD (NPI 1356907414) is an individual emergency medicine provider in Paoli, Pennsylvania, licensed in Pennsylvania (MD485187) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Paoli Hospital, and is a graduate of University Of Texas Medical School At Houston (2020).

NPPES Registry Identity

NPI1356907414
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMARC ST CYRCredential: MD
Location Address255 W LANCASTER AVEPaoli, PA 19301-1763
Mailing Address255 W Lancaster AvePaoli, PA 19301-1763 · (484) 565-1044
Phone(484) 565-1000
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2020
Enumeration DateMay 14, 2019
Last NPPES UpdateNovember 10, 20252 updates tracked since enumeration
NPPES CertifiedNovember 10, 2025
✔ NPI 1356907414 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in PA · MD485187
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.
255 W LANCASTER AVE, Paoli, PA 19301
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marc St Cyr 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 ID5395155394
PECOS Enrollment IDI20250516001140
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.

Hospital Affiliations CMS Care Compare

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

Paoli Hospital

Acute Care Hospitals · Paoli, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390153
Location255 West Lancaster AvenuePaoli, PA 19301 · Chester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19301 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

TALIA LAGRAVINESE CRNP
Nurse Practitioner (Acute Care)
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (484) 565-1510
EMILY JANE DAMICO
Physician Assistant
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (215) 429-1003
MRS. LYNN B WOLFF CRNP
Nurse Practitioner (Acute Care)
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (484) 565-1600
MARY ANITA DILLOWAY MD
Pediatrics
255 W LANCASTER AVE, MOB 1 STE 101
PAOLI, PA 19301
Chester County (610) 644-9380
DR. SCOTT A. OLEX D.O.
Hospitalist
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (484) 565-1510
DR. JANIS ZVARGULIS M.D.
Anesthesiology
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (484) 565-1020
PAOLI PEDIATRICS PC
Pediatrics
255 W LANCASTER AVE, MOB 1 SUITE 101
PAOLI, PA 19301
Chester County (610) 644-9380
ADVOCARE, LLC
Hospitalist
255 W LANCASTER AVE
PAOLI, PA 19301
Chester County (610) 308-5755

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 Marc St Cyr's NPI number?

The NPI number for Marc St Cyr is 1356907414. It was assigned to this individual provider in the NPPES registry on May 14, 2019.

Where is Marc St Cyr located?

Marc St Cyr practices at 255 W Lancaster Ave, Paoli, PA 19301. The listed phone number is (484) 565-1000.

What is Marc St Cyr's specialty?

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

Is Marc St Cyr enrolled in Medicare?

Yes. Marc St Cyr 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.

Is Marc St Cyr affiliated with any hospitals?

According to CMS data, Marc St Cyr is affiliated with Paoli Hospital.

When was this NPI record last updated?

The NPPES record for Marc St Cyr was last updated on November 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.