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Nurse Practitioner

Mary Ann Lucero Pierce, NP

Works at hospitals in Leonardtown, MD · Maryland

Summary

Mary Ann Lucero Pierce, NP is a nurse practitioner at 11350 Pembrooke Sq, Suite 304, Waldorf, MD 20603. Phone: (571) 366-8845. Accepts Medicare assignment. In 2024, Mary Ann Lucero Pierce had 123 Original Medicare patients and 361 services. NPI 1609350206. 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: Nurse practitioner
  • Address: 11350 Pembrooke Sq, Suite 304, Waldorf, MD 20603 · Directions (2 more locations)
  • Phone: (571) 366‑8845
  • Medicare: Accepts Medicare assignment
  • Hospital: MedStar Saint Mary's Hospital
  • Group practice: Privia Medical Group, LLC (+1 more)
  • School: graduated 2018
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mary Ann Lucero Pierce, 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 Mary Ann Lucero Pierce accept Medicare assignment?
Yes. Medicare's clinician data says Mary Ann Lucero Pierce 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 Mary Ann Lucero Pierce see?
In 2024, CMS data shows 123 Original Medicare patients and 361 services for Mary Ann Lucero Pierce. This counts Original Medicare only and measures volume, not quality.
What is Mary Ann Lucero Pierce's NPI number?
1609350206. 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 Mary Ann Lucero Pierce, 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 patients123
Services billed to Medicare361
Different services or procedures9
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)130 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)104 services
  3. Hospital discharge day management, more than 30 minutes (99239)63 services
  4. Hospital discharge day management, 30 minutes or less (99238)33 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)14 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%
  • Arthritis63%
  • Ischemic heart disease59%
  • Diabetes53%
  • Chronic kidney disease48%

Hospitals where Mary Ann Lucero Pierce works

Medicare's Facility Affiliation Data lists Mary Ann Lucero Pierce 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.

  • MedStar Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210028

Practice locations

Addresses where Mary Ann Lucero Pierce is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mary Ann Lucero Pierce as a member of these groups (CMS data updated October 2, 2026).

  • Privia Medical Group, LLC1,533 clinicians in the group
  • MedStar Medical Group - Southern Maryland LLC245 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Maryland →

Other nurse practitioners in Waldorf

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

All nurse practitioners in Waldorf →

Other clinicians in Privia Medical Group, LLC

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

Clinician information

CredentialNP
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609350206
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