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Cardiovascular Disease (Cardiology)

Mallory C. Hatfield, MD

Works at hospitals in Hyannis, MA · Massachusetts

Summary

Mallory C. Hatfield, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 1 hospital in Hyannis, MA. NPI 1790737013. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mallory C. Hatfield, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
State University Of Ny Upstate Medical UniversityMedical school
FemaleGender (as listed)

Quick answers

Which hospitals does Mallory C. Hatfield work at?
Medicare's official clinician data lists Mallory C. Hatfield at 1 hospital: Cape Cod Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mallory C. Hatfield see patients?
Medicare's clinician data lists 1 practice location in Hyannis, MA. Call before your visit to confirm the address.
What is Mallory C. Hatfield's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
Does Mallory C. Hatfield accept Medicare assignment?
Yes. Medicare's clinician data says Mallory C. Hatfield accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Mallory C. Hatfield offer telehealth?
Medicare's clinician data says Mallory C. Hatfield offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Mallory C. Hatfield?
(508) 778-4888, as listed in official Medicare / NPI Registry data.
What is Mallory C. Hatfield's NPI number?
1790737013. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mallory C. Hatfield works

Medicare's Facility Affiliation Data lists Mallory C. Hatfield at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mallory C. Hatfield is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →

Other cardiologists in Hyannis

Clinicians with the same Medicare primary specialty in Hyannis, MA — not a recommendation.

All cardiologists in Hyannis →

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year1991
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1790737013
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians