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Physician Assistant

Helen Reidler, PA

Works at hospitals in Westminster, MD · Maryland

Summary

Helen Reidler, PA is a physician assistant at 1838 Greene Tree Rd, Suite 460, Baltimore, MD 21208. Phone: (410) 581-8140. Accepts Medicare assignment. In 2024, Helen Reidler had 897 Original Medicare patients and 24,487 services. NPI 1639506553. 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: Physician assistant
  • Address: 1838 Greene Tree Rd, Suite 460, Baltimore, MD 21208 · Directions (2 more locations)
  • Phone: (410) 581‑8140
  • Medicare: Accepts Medicare assignment
  • Hospital: Carroll Hospital Center
  • Group practice: Chesapeake Urology Associates LLC
  • School: graduated 2013
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Helen Reidler, 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 Helen Reidler accept Medicare assignment?
Yes. Medicare's clinician data says Helen Reidler 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 Helen Reidler see?
In 2024, CMS data shows 897 Original Medicare patients and 24,487 services for Helen Reidler. This counts Original Medicare only and measures volume, not quality.
What is Helen Reidler's NPI number?
1639506553. 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 Helen Reidler, 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 patients897
Services billed to Medicare24,487
Different services or procedures42
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Injection, degarelix, 1 mg (J9155)8,080 services
  2. Bcg live intravesical instillation, 1 mg (J9030)4,950 services
  3. Injection, denosumab, 1 mg (J0897)3,960 services
  4. Automated urinalysis test (81003)1,129 services
  5. 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)983 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%
  • Arthritis57%
  • Ischemic heart disease40%
  • Diabetes38%
  • Anxiety30%

Hospitals where Helen Reidler works

Medicare's Facility Affiliation Data lists Helen Reidler 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.

  • Carroll Hospital CenterWestminster, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210033

Practice locations

Addresses where Helen Reidler is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Helen Reidler as a member of this group (CMS data updated October 2, 2026).

  • Chesapeake Urology Associates LLC177 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Maryland →

Other physician assistants in Baltimore

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

All physician assistants in Baltimore →

Other clinicians in Chesapeake Urology Associates LLC

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

Clinician information

CredentialPA
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639506553
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