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WILLIAM MARASOVICH MD INC
NPI 1730307471
Otolaryngology - Otolaryngic Allergy in Sewickley, PA

Active since April 20, 2007
701 BROAD ST, SEWICKLEY, PA 15143(412) 741-2123(412) 741-5522 Get Directions Write a Review

NPPES record last updated: May 5, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William Marasovich Md Inc NPPES

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

WILLIAM MARASOVICH MD INC (NPI 1730307471) is a healthcare organization registered as an otolaryngic allergy in Sewickley, Pennsylvania and active in the NPI registry since April 2007. The organization lists William A Marasovich, President, as its authorized official.

NPPES Registry Identity

NPI1730307471
Entity TypeOrganization
Primary Taxonomy207YX0602X
Legal Business NameWILLIAM MARASOVICH MD INC
Location Address701 BROAD STSewickley, PA 15143-1652
Mailing Address701 Broad StSewickley, PA 15143-1652 · (412) 741-2123 · Fax (412) 741-5522
Phone(412) 741-2123
Fax(412) 741-5522
Organization SubpartNo
Authorized OfficialWilliam A MarasovichPresident · (412) 741-2123
Enumeration DateApril 20, 2007
Last NPPES UpdateMay 5, 2008
✔ NPI 1730307471 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngology · Otolaryngic AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207YX0602X
License✔ Licensed in PA · MD023967L
Definition
An otolaryngologist who specializes in the diagnosis and treatment of otolaryngic allergies and other allergic diseases.
701 BROAD ST, Sewickley, PA 15143
Open in Google Maps ↗

Other Identifiers 4

Medicare ID-Type Unspecified483520PA · Medicare #
Medicaid0014326190004PA
Medicare UPINF71010PA
Other761800PA · Blue Shield Provider #

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Marasovich Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StatePennsylvaniaEnrollment IDO20080513000244Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to William Marasovich MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

William Marasovich, MD DDS
Otolaryngology
NPI 1720039449
701 BROAD ST SUITE D
Sewickley, PA 15143
(412) 741-2123
✔ PECOS✔ Accepts MedicareSame address

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

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 Marasovich MD Inc's NPI number?

The NPI number for William Marasovich MD Inc is 1730307471. It was assigned to this organization in the NPPES registry on April 20, 2007.

Where is William Marasovich MD Inc located?

William Marasovich MD Inc is located at 701 Broad St, Sewickley, PA 15143. The listed phone number is (412) 741-2123.

What is William Marasovich MD Inc's specialty?

The primary specialty registered for this NPI is Otolaryngology, specializing in Otolaryngic Allergy, with taxonomy code 207YX0602X.

Is William Marasovich MD Inc enrolled in Medicare?

Yes. William Marasovich MD Inc is registered in the Medicare PECOS enrollment system.

When is William Marasovich MD Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Pennsylvania, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through William Marasovich MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Otolaryngology) reassigns their Medicare billing to William Marasovich MD Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for William Marasovich MD Inc was last updated on May 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.