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Physician Assistant

Esther M. Hyatt, PA

Works at hospitals in Rockville, MD · Maryland

Summary

Esther M. Hyatt, PA is a physician assistant at 9901 Medical Ctr Dr, Rockville, MD 20850. Phone: (240) 826-7550. Accepts Medicare assignment. In 2024, Esther M. Hyatt had 281 Original Medicare patients and 301 services. NPI 1689900755. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Esther M. Hyatt, 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 Esther M. Hyatt accept Medicare assignment?
Yes. Medicare's clinician data says Esther M. Hyatt 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 Esther M. Hyatt see?
In 2024, CMS data shows 281 Original Medicare patients and 301 services for Esther M. Hyatt. This counts Original Medicare only and measures volume, not quality.
What is Esther M. Hyatt's NPI number?
1689900755. 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 Esther M. Hyatt, 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 patients281
Services billed to Medicare301
Different services or procedures5
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)209 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)42 services
  3. Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes (99236)40 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%
  • Arthritis60%
  • Diabetes43%
  • Ischemic heart disease42%
  • Anxiety37%

Hospitals where Esther M. Hyatt works

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

Group practices

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

  • Mep Observation Services LLC44 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Maryland →

Other physician assistants in Rockville

Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.

All physician assistants in Rockville →

Other clinicians in Mep Observation Services LLC

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

Clinician information

CredentialPA
Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689900755
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