Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Daniel Katz, MD

Sees patients in Newton, MA · Boston, MA · Massachusetts

Summary

Daniel Katz, MD (Obstetrics/Gynecology) is enrolled with Medicare at 2 practice locations in Newton, MA and Boston, MA. NPI 1043439367. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Daniel Katz, 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

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
23Years since medical school (graduated 2003)
State University Of New York At Buffalo School Of MedicineMedical school
MaleGender (as listed)
Brigham and Womens Physicians Organization IncGroup practice (+1 more)

Quick answers

Where does Daniel Katz see patients?
Medicare's clinician data lists 2 practice locations, including Newton, MA and Boston, MA. Call before your visit to confirm the address.
What is Daniel Katz's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Daniel Katz accept Medicare assignment?
Yes. Medicare's clinician data says Daniel Katz 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.
What is the phone number for Daniel Katz?
(617) 243-6000, as listed in official Medicare / NPI Registry data.
What is Daniel Katz's NPI number?
1043439367. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Daniel Katz is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Daniel Katz as a member of these groups (CMS data updated 2026-10-02).

  • Brigham and Womens Physicians Organization Inc2,994 clinicians in the group
  • Mass General Brigham Medical Group Suburban Massachusetts Inc602 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Massachusetts →

Other OB-GYNs in Newton

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

All OB-GYNs in Newton →

Clinician information

CredentialMD
Medical schoolState University Of New York At Buffalo School Of Medicine
Graduation year2003
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043439367
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians