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

Nurse Practitioner

Janejira J. Chaiyasit, NP

Works at hospitals in New York, NY · New York

Summary

Janejira J. Chaiyasit, NP is a nurse practitioner at 161 Fort Washington Ave, New York, NY 10032. Phone: (212) 305-8559. Accepts Medicare assignment. In 2024, Janejira J. Chaiyasit had 83 Original Medicare patients and 323 services. NPI 1588080139. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Nurse practitioner
  • Address: 161 Fort Washington Ave, New York, NY 10032 · Directions (1 more location)
  • Phone: (212) 305‑8559
  • Medicare: Accepts Medicare assignment
  • Hospital: New York-Presbyterian Hospital
  • Group practice: Trustees of Columbia University in the City of New York
  • School: graduated 2015
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Janejira J. Chaiyasit, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Janejira J. Chaiyasit accept Medicare assignment?
Yes. Medicare's clinician data says Janejira J. Chaiyasit accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Janejira J. Chaiyasit see?
In 2024, CMS data shows 83 Original Medicare patients and 323 services for Janejira J. Chaiyasit. This counts Original Medicare only and measures volume, not quality.
What is Janejira J. Chaiyasit's NPI number?
1588080139. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Janejira J. Chaiyasit, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients83
Services billed to Medicare323
Different services or procedures21
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)136 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)39 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)35 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)26 services
  5. Administration of influenza virus vaccine (G0008)21 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol71%
  • High blood pressure66%
  • Arthritis47%
  • Diabetes27%
  • Depression22%
  • Osteoporosis22%

Hospitals where Janejira J. Chaiyasit works

Medicare's Facility Affiliation Data lists Janejira J. Chaiyasit at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Janejira J. Chaiyasit is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Janejira J. Chaiyasit as a member of this group (CMS data updated October 2, 2026).

  • Trustees of Columbia University in the City of New York2,296 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, New York →

Other nurse practitioners in New York

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

All nurse practitioners in New York →

Other clinicians in Trustees of Columbia University in the City of New York

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialNP
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588080139
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians