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

Internal Medicine

Alanna Tieman, MD

Sees patients in New York, NY · New York

Summary

Alanna Tieman, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in New York, NY. NPI 1255835500. 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 Alanna Tieman, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
8Years since medical school (graduated 2018)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
FemaleGender (as listed)
One Medical of NY PCGroup practice

Quick answers

Where does Alanna Tieman see patients?
Medicare's clinician data lists 1 practice location in New York, NY. Call before your visit to confirm the address.
What is Alanna Tieman's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Alanna Tieman accept Medicare assignment?
Yes. Medicare's clinician data says Alanna Tieman 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 Alanna Tieman offer telehealth?
Medicare's clinician data says Alanna Tieman offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Alanna Tieman?
(888) 663-6331, as listed in official Medicare / NPI Registry data.
What is Alanna Tieman's NPI number?
1255835500. 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 Alanna Tieman is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Alanna Tieman as a member of this group (CMS data updated 2026-10-02).

  • One Medical of NY PC72 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

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

All internal medicine doctors in New York →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1255835500
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