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MARGARET MARY HAYES MD
NPI 1659545960
Internal Medicine - Critical Care Medicine in Boston, MA

Active since April 17, 2008PECOS EnrolledAccepts Medicare Assignment
330 BROOKLINE AVE, BOSTON, MA 02215(617) 667-5864(617) 667-4849 Get Directions Write a Review

NPPES record last updated: August 24, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Margaret Mary Hayes Md NPPES

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

MARGARET MARY HAYES MD (NPI 1659545960) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (263393) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Tufts University School Of Medicine (2008).

NPPES Registry Identity

NPI1659545960
Entity TypeIndividualFemale
Primary Taxonomy207RC0200X
Provider Legal NameMARGARET MARY HAYESCredential: MD
Location Address330 BROOKLINE AVEBoston, MA 02215
Mailing Address330 Brookline AveBoston, MA 02215 · (617) 667-5864 · Fax (617) 667-4849
Phone(617) 667-5864
Fax(617) 667-4849
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2008
Enumeration DateApril 17, 2008
Last NPPES UpdateAugust 24, 2016
✔ NPI 1659545960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in MA · 263393
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
330 BROOKLINE AVE, Boston, MA 02215
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Other Identifiers 2

Medicaid056121500MD
Medicare PIN244650Y82MD

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

Margaret Mary Hayes 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 ID1951557545
PECOS Enrollment IDI20150918002005
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
172 services82 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
19 services19 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
16 services15 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
13 services12 patients

Hospital Affiliations CMS Care Compare

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

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

BETH ISRAEL DEACONESS MEDICAL CENTER
Chronic Disease Hospital (Children)
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 677-4042
DR. BRIAN DANIEL HOBBS MD, MMSC
Internal Medicine
330 BROOKLINE AVE, PULMONARY AND CRITICAL CARE DEPARTMENT
BOSTON, MA 02215
Suffolk County (617) 667-5864
ERICA DOMMASCH MD
Dermatology
330 BROOKLINE AVE, SHAPIRO 2
BOSTON, MA 02215
Suffolk County (617) 667-3753
VAHID KIARAD M.D
Anesthesiology
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000
DR. MICHAEL R GOLDSTEIN PHD
Psychologist (Clinical)
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 356-7246
SARA MURDOCK CAHILL MD
Hospitalist
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000
DR. ELIZABETH MAIER BALOUGH MD, PHD
Student in an Organized Health Care Education/Training Program
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000
ETHAN G BURKE
Emergency Medicine
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000

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 Margaret Hayes's NPI number?

The NPI number for Margaret Hayes is 1659545960. It was assigned to this individual provider in the NPPES registry on April 17, 2008.

Where is Margaret Hayes located?

Margaret Hayes practices at 330 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 667-5864.

What is Margaret Hayes's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Margaret Hayes enrolled in Medicare?

Yes. Margaret Hayes 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 Margaret Hayes affiliated with any hospitals?

According to CMS data, Margaret Hayes is affiliated with Beth Israel Deaconess Medical Center.

When was this NPI record last updated?

The NPPES record for Margaret Hayes was last updated on August 24, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.