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

Obstetrics/Gynecology

Katherine S. Lammers, MD

Sees patients in Rochester, NY · New York

Summary

Katherine S. Lammers, MD (Obstetrics/Gynecology) is enrolled with Medicare at 1 practice location in Rochester, NY. NPI 1760481675. 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 Katherine S. Lammers, 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
39Years since medical school (graduated 1987)
University Of Rochester School Of Medicine And DentistryMedical school
FemaleGender (as listed)
Greece Obstetrics and Gynecology Group LLPGroup practice

Quick answers

Where does Katherine S. Lammers see patients?
Medicare's clinician data lists 1 practice location in Rochester, NY. Call before your visit to confirm the address.
What is Katherine S. Lammers's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Katherine S. Lammers accept Medicare assignment?
Yes. Medicare's clinician data says Katherine S. Lammers 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 Katherine S. Lammers's NPI number?
1760481675. 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 Katherine S. Lammers is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Katherine S. Lammers as a member of this group (CMS data updated 2026-10-02).

  • Greece Obstetrics and Gynecology Group LLP5 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in New York →

Other OB-GYNs in Rochester

Clinicians with the same Medicare primary specialty in Rochester, NY — not a recommendation.

All OB-GYNs in Rochester →

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year1987
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1760481675
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