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Emergency Medicine

Teimojin N. Tan, DO

Works at hospitals in Pittsfield, ME · Maine

Summary

Dr. Teimojin N. Tan, DO is an emergency medicine doctor at 447 N Main St, Pittsfield, ME 04967. Phone: (207) 487-4000. Accepts Medicare assignment. In 2024, Teimojin N. Tan had 202 Original Medicare patients and 245 services. NPI 1952892382. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 447 N Main St, Pittsfield, ME 04967 · Directions
  • Phone: (207) 487‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Northern Light Sebasticook Valley Hospital
  • Group practice: Emergency Medicine Services of Maine LLC
  • Medical school: Michigan State University College Of Osteopathic Medicine · graduated 2018 (8 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Teimojin N. Tan, 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 Teimojin N. Tan accept Medicare assignment?
Yes. Medicare's clinician data says Teimojin N. Tan 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 Teimojin N. Tan see?
In 2024, CMS data shows 202 Original Medicare patients and 245 services for Teimojin N. Tan. This counts Original Medicare only and measures volume, not quality.
What is Teimojin N. Tan's NPI number?
1952892382. 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 Teimojin N. Tan, 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 patients202
Services billed to Medicare245
Different services or procedures20
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)120 services
  2. Emergency department visit with moderate level of medical decision making (99284)67 services
  3. Emergency department visit with low level of medical decision making (99283)34 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 blood pressure74%
  • High cholesterol67%
  • Anxiety40%
  • Arthritis39%
  • Ischemic heart disease33%
  • COPD30%

Hospitals where Teimojin N. Tan works

Medicare's Facility Affiliation Data lists Teimojin N. Tan 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 Teimojin N. Tan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Teimojin N. Tan as a member of this group (CMS data updated October 2, 2026).

  • Emergency Medicine Services of Maine LLC56 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Maine →

Other emergency medicine doctors in Pittsfield

Clinicians with the same Medicare primary specialty in Pittsfield, ME — not a recommendation.

All emergency medicine doctors in Pittsfield →

Other clinicians in Emergency Medicine Services of Maine LLC

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952892382
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