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Internal Medicine

Lea M. Fisher, MD

Works at hospitals in Washington, DC · District of Columbia

Summary

Dr. Lea M. Fisher, MD is an internal medicine doctor at 110 Irving St NW, Washington, DC 20010. Phone: (202) 877-7000. Accepts Medicare assignment. In 2024, Lea M. Fisher had 259 Original Medicare patients and 815 services. NPI 1346879285. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 110 Irving St NW, Washington, DC 20010 · Directions
  • Phone: (202) 877‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: MedStar Washington Hospital Center
  • Group practice: MedStar Medical Group II LLC
  • Medical school: graduated 2020 (6 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lea M. Fisher, 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 Lea M. Fisher accept Medicare assignment?
Yes. Medicare's clinician data says Lea M. Fisher 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 Lea M. Fisher see?
In 2024, CMS data shows 259 Original Medicare patients and 815 services for Lea M. Fisher. This counts Original Medicare only and measures volume, not quality.
What is Lea M. Fisher's NPI number?
1346879285. 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 Lea M. Fisher, 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 patients259
Services billed to Medicare815
Different services or procedures12
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)611 services
  2. Hospital discharge day management, more than 30 minutes (99239)92 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)42 services
  4. Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)35 services
  5. Critical care, first 30-74 minutes (99291)11 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 pressure75%
  • High cholesterol75%
  • Chronic kidney disease63%
  • Arthritis62%
  • Diabetes60%
  • Heart failure51%

Hospitals where Lea M. Fisher works

Medicare's Facility Affiliation Data lists Lea M. Fisher 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 Lea M. Fisher is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lea M. Fisher as a member of this group (CMS data updated October 2, 2026).

  • MedStar Medical Group II LLC3,767 clinicians in the group

Specialties

Find other Internal Medicine doctors in District of Columbia →

Other internal medicine doctors in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All internal medicine doctors in Washington →

Other clinicians in MedStar Medical Group II LLC

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

Clinician information

CredentialMD
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346879285
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