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Physician Assistant

Hillary McDonald, PA

Works at hospitals in Prince Frederick, MD · Leonardtown, MD · La Plata, MD · Maryland

Summary

Hillary McDonald, PA is a physician assistant at 12070 Old Line Ctr, Waldorf, MD 20602. Phone: (301) 475-3240. Accepts Medicare assignment. In 2024, Hillary McDonald had 557 Original Medicare patients and 10,600 services. NPI 1063050953. 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 Hillary McDonald, 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 Hillary McDonald accept Medicare assignment?
Yes. Medicare's clinician data says Hillary McDonald 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 Hillary McDonald see?
In 2024, CMS data shows 557 Original Medicare patients and 10,600 services for Hillary McDonald. This counts Original Medicare only and measures volume, not quality.
What is Hillary McDonald's NPI number?
1063050953. 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 Hillary McDonald, 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 patients557
Services billed to Medicare10,600
Different services or procedures57
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)6,780 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)393 services
  3. 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)365 services
  4. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)364 services
  5. Leuprolide acetate (for depot suspension), 7.5 mg (J9217)282 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%
  • Arthritis48%
  • Diabetes45%
  • Chronic kidney disease38%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)34%

Hospitals where Hillary McDonald works

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

  • 12070 Old Line CtrWaldorf, MD 20602
  • 41680 Miss Bessie Dr, Suite 202Leonardtown, MD 20650 (301) 475‑3240

Group practices

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

  • Chesapeakeandwashington Heart Care, PC11 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Maryland →

Other physician assistants in Waldorf

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

All physician assistants in Waldorf →

Other clinicians in Chesapeakeandwashington Heart Care, PC

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

Clinician information

CredentialPA
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063050953
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