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LAURA STEWART STONE MD
NPI 1568441582
Emergency Medicine in Baltimore, MD

Active since January 10, 2006PECOS EnrolledAccepts Medicare Assignment
250 W PRATT ST STE 1320, BALTIMORE, MD 21201(667) 214-2050 Get Directions Write a Review

NPPES record last updated: June 12, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 12, 2023, Feb 21, 2022 (2 updates tracked since 2022).

About Laura Stewart Stone Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LAURA STEWART STONE MD (NPI 1568441582) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D0058313) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (1997).

NPPES Registry Identity

NPI1568441582
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameLAURA STEWART STONECredential: MD
Location Address250 W PRATT ST STE 1320Baltimore, MD 21201-2411
Mailing Address9403 Ballard Green DrOwings Mills, MD 21117-5915 · (302) 528-3926
Phone(667) 214-2050
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 1997
Enumeration DateJanuary 10, 2006
Last NPPES UpdateJune 12, 20232 updates tracked since enumeration
NPPES CertifiedJune 12, 2023
✔ NPI 1568441582 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in MD · D0058313✔ Licensed in MD · D58313
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
250 W PRATT ST STE 1320, Baltimore, MD 21201
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Other Names 1

Former Name (1)Laura Stone Ellis Md

Other Identifiers 1

Medicaid510218900MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Laura Stewart Stone Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012915507
PECOS Enrollment IDI20101214001066
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Laura Stone reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Umms Ambulatory Care LLC
3.4 mi
Urgent Care
711 W 40TH ST STE 173
Baltimore, MD 21211
  • Reassigned Medicare billing, Maryland enrollment
  • 87 clinicians in this Medicare group
NPI 1134726649 (443) 961-1221
Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc
3.6 mi
Ambulatory Surgical
1701 TWIN SPRINGS RD
Halethorpe, MD 21227
NPI 1942546486 (301) 816-2424
Chester River Hospital Center
30 mi
Emergency Medicine
100 BROWN ST
Chestertown, MD 21620
  • Reassigned Medicare billing, Maryland enrollment
  • 172 clinicians in this Medicare group
NPI 1053491795 (410) 778-3300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
36 services36 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
13 services13 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BASIL EDWIN WEST JR. MD
Emergency Medicine
250 W PRATT ST STE 1320
BALTIMORE, MD 21201
Baltimore City (443) 643-6821
MERISSA IDA ARMANDE WEISS M.D.
Emergency Medicine
250 W PRATT ST STE 1320
BALTIMORE, MD 21201
Baltimore City (410) 802-4481

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Laura Stone's NPI number?

The NPI number for Laura Stone is 1568441582. It was assigned to this individual provider in the NPPES registry on January 10, 2006. The provider is also known as Laura Stone Ellis MD.

Where is Laura Stone located?

Laura Stone practices at 250 W Pratt St Ste 1320, Baltimore, MD 21201. The listed phone number is (667) 214-2050.

What is Laura Stone's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Laura Stone enrolled in Medicare?

Yes. Laura Stone is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Laura Stone's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Laura Stone reassigns Medicare benefits to 3 organizations: Umms Ambulatory Care LLC (Baltimore, MD), Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Halethorpe, MD) and Chester River Hospital Center (Chestertown, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Laura Stone's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Laura Stone was last updated on June 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.