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MICHELLE SILASI MD
NPI 1316122476
Obstetrics & Gynecology - Maternal & Fetal Medicine in Saint Louis, MO

Active since January 08, 2008PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD STE 2007B, SAINT LOUIS, MO 63141(314) 991-5000 Get Directions Write a Review

NPPES record last updated: October 6, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michelle Silasi Md NPPES

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

MICHELLE SILASI MD (NPI 1316122476) is an individual maternal & fetal medicine provider in Saint Louis, Missouri, licensed in Missouri (2020022080) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains a secondary practice location in New Haven.

NPPES Registry Identity

NPI1316122476
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameMICHELLE SILASICredential: MD
Location Address621 S NEW BALLAS RD STE 2007BSaint Louis, MO 63141-8265
Mailing Address621 S New Ballas Rd Ste 2007bSaint Louis, MO 63141-8265 · (314) 991-5000
Phone(314) 991-5000
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateJanuary 8, 2008
Last NPPES UpdateOctober 6, 2020
NPPES CertifiedOctober 6, 2020
✔ NPI 1316122476 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in MO · 2020022080
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
621 S NEW BALLAS RD STE 2007B, Saint Louis, MO 63141
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Other Names 1

Former Name (1)Michelle Magallanez Md

Secondary Practice Location 1

Location 1789 Howard AveNew Haven, CT 06519-1304 · Phone (203) 785-5855

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

Michelle Silasi 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 ID4486790391
PECOS Enrollment IDI20200831001761
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

3

Medicare enrollment records show Michelle Silasi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Hospitals East Communities
Same address
Clinic/Center
615 S NEW BALLAS RD
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 435 clinicians in this Medicare group
NPI 1851431738 (314) 251-6382
Mercy Clinic Maternal Fetal Medicine LLC
1.5 mi
Maternal & Fetal Medicine
621 S NEW BALLAS RD STE 2007B
Saint Louis, MO 63141
  • Reassigned Medicare billing, Missouri enrollment
  • 20 clinicians in this Medicare group
NPI 1952810129 (314) 991-1000
Yale University
945 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432

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.

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

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 18

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

MRS. MELISSA A PORTELL WHNP
Nurse Practitioner (Women's Health)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
SARA MATHEWS RDN
Dietitian, Registered
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. EMILY WHITAKER ZANTOW M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. JENNIFER GOLDKAMP M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. ALEXANDRA MARIE EDWARDS M.D.
Obstetrics & Gynecology (Critical Care Medicine)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. ALEXANDRA RAGSDALE SCHROEDER MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
MRS. SAMANTHA EMERSON CNM
Midwife
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. SHAYNA N CONNER MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
621 S NEW BALLAS RD STE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000

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 Michelle Silasi's NPI number?

The NPI number for Michelle Silasi is 1316122476. It was assigned to this individual provider in the NPPES registry on January 8, 2008. The provider is also known as Michelle Magallanez MD.

Where is Michelle Silasi located?

Michelle Silasi practices at 621 S New Ballas Rd Ste 2007B, Saint Louis, MO 63141. The listed phone number is (314) 991-5000.

What is Michelle Silasi's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Michelle Silasi enrolled in Medicare?

Yes. Michelle Silasi 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 Michelle Silasi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Silasi reassigns Medicare benefits to 3 organizations: Mercy Hospitals East Communities (Saint Louis, MO), Mercy Clinic Maternal Fetal Medicine LLC (Saint Louis, MO) and Yale University (New Haven, CT). 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 Michelle Silasi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michelle Silasi accept?

Health plans from Anthem Blue Cross and Blue Shield and UnitedHealthcare list Michelle Silasi 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 Michelle Silasi affiliated with any hospitals?

According to CMS data, Michelle Silasi is affiliated with Mercy Hospital St Louis.

When was this NPI record last updated?

The NPPES record for Michelle Silasi was last updated on October 6, 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.