ROSEMARY LARKIN SHAY MD
NPI 1801392337
Obstetrics & Gynecology - Maternal & Fetal Medicine in Worcester, MA

Q: What is Rosemary Shay's NPI number?

The NPI number for Rosemary Shay is 1801392337. It was assigned to this individual provider in the NPPES registry on April 3, 2018.

Q: What is Rosemary Shay's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Rosemary Shay 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 10 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.

Active since April 03, 2018PECOS EnrolledAccepts Medicare Assignment

33 KENDALL ST, WORCESTER, MA 01605(508) 334-1345(508) 334-9847 Get Directions Write a Review

NPPES record last updated: November 10, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Nov 10, 2025, Sep 4, 2025, Aug 5, 2022 and 1 more (4 updates tracked since 2018).

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About Rosemary Larkin Shay Md NPPES

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

ROSEMARY LARKIN SHAY MD (NPI 1801392337) is an individual maternal & fetal medicine provider in Worcester, Massachusetts, licensed in Massachusetts (1023545) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (2018).

NPPES Registry Identity

NPI1801392337

Entity TypeIndividualFemale

Primary Taxonomy207VM0101X

Provider Legal NameROSEMARY LARKIN SHAYCredential: MD

Location Address33 KENDALL STWorcester, MA 01605-2726

Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977

Phone(508) 334-1345

Fax(508) 334-9847

Sole ProprietorNo

Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 2018

Enumeration DateApril 3, 2018

Last NPPES UpdateNovember 10, 20254 updates tracked since enumeration

NPPES CertifiedNovember 10, 2025

✔ NPI 1801392337 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207VM0101X

License✔ Licensed in MA · 1023545

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.

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 1023545 (MA)

33 KENDALL ST, Worcester, MA 01605

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

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

Rosemary Larkin Shay 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 ID7618222001

PECOS Enrollment IDI20250923001104

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.

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220163

Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01605 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$73.22 typical visit price

range $19.11 – $144.84

Typical copayment $18.30 (range $4.77 – $36.21)

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.

ERIN MARIE BEDNAREK N.P.

Nurse Practitioner (Women's Health)

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-6255

JOSHUA HENRY ALTSCHULER MD

Urology

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-8765

MRS. DANIELLE KATHLEEN WRIGHT CNP

Nurse Practitioner (Women's Health)

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-6255

SEANNA LONGACRE

Nurse Practitioner (Acute Care)

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-8765

DEBRA M PAPA M.D.

Obstetrics & Gynecology (Obstetrics)

33 KENDALL ST, DEPARTMENT OF OBSTETRICS & GYNECOLOGY
WORCESTER, MA 01605

Worcester County (508) 334-6255

JENNIFER FANTASIA M.D.

Urology

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (083) 348-7655

KATE LOBISSER PA-C

Physician Assistant

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-8765

ELIZABETH R. ALLOCCO M.D.

Obstetrics & Gynecology

33 KENDALL ST
WORCESTER, MA 01605

Worcester County (508) 334-6255

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 Rosemary Shay's NPI number?

The NPI number for Rosemary Shay is 1801392337. It was assigned to this individual provider in the NPPES registry on April 3, 2018.

Where is Rosemary Shay located?

Rosemary Shay practices at 33 Kendall St, Worcester, MA 01605. The listed phone number is (508) 334-1345.

What is Rosemary Shay's specialty?

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

Is Rosemary Shay enrolled in Medicare?

Yes. Rosemary Shay 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.

What insurance does Rosemary Shay accept?

Health plans from Anthem Blue Cross and Blue Shield list Rosemary Shay 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 Rosemary Shay affiliated with any hospitals?

According to CMS data, Rosemary Shay is affiliated with Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Rosemary Shay 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 10 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.