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Psychiatry

Alan A. Buffenstein, MD

Sees patients in Honolulu, HI · Hawaii

Summary

Alan A. Buffenstein, MD (Psychiatry) is enrolled with Medicare at 1 practice location in Honolulu, HI. NPI 1639278104. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(808) 548‑5400 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Alan A. Buffenstein, 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

1Practice location
PsychiatryPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
49Years since medical school (graduated 1977)
MaleGender (as listed)

Quick answers

Where does Alan A. Buffenstein see patients?
Medicare's clinician data lists 1 practice location in Honolulu, HI. Call before your visit to confirm the address.
What is Alan A. Buffenstein's specialty?
Medicare lists Psychiatry as the primary specialty, and also Geriatric Psychiatry.
Does Alan A. Buffenstein accept Medicare assignment?
Yes. Medicare's clinician data says Alan A. Buffenstein 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 Alan A. Buffenstein offer telehealth?
Medicare's clinician data says Alan A. Buffenstein offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Alan A. Buffenstein?
(808) 548-5400, as listed in official Medicare / NPI Registry data.
What is Alan A. Buffenstein's NPI number?
1639278104. 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 Alan A. Buffenstein is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Psychiatry doctors in Hawaii →

Other psychiatrists in Honolulu

Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.

All psychiatrists in Honolulu →

Clinician information

CredentialMD
Graduation year1977
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639278104
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