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WILLIAM E MACDONNELL P.A.
NPI 1225086994
Physician Assistant in Baltimore, MD

Active since May 05, 2006PECOS EnrolledAccepts Medicare Assignment
1501 W MOUNT ROYAL AVE, BALTIMORE, MD 21217(410) 225-4118(410) 225-0252 Get Directions Write a Review

NPPES record last updated: March 13, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 13, 2023, Jul 21, 2022, May 6, 2019 and 1 more (4 updates tracked since 2016).

About William E Macdonnell P.a. NPPES

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

WILLIAM E MACDONNELL P.A. (NPI 1225086994) is an individual physician assistant in Baltimore, Maryland, licensed in Maryland (C0002492) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1225086994
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameWILLIAM E MACDONNELLCredential: P.A.
Location Address1501 W MOUNT ROYAL AVEBaltimore, MD 21217-4289
Mailing Address3500 Boston St Ste J1Baltimore, MD 21224-5723 · (410) 522-0001 · Fax (410) 522-0017
Phone(410) 225-4118
Fax(410) 225-0252
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateMay 5, 2006
Last NPPES UpdateMarch 13, 20234 updates tracked since enumeration
NPPES CertifiedMarch 13, 2023
✔ NPI 1225086994 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MD · C0002492
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1501 W MOUNT ROYAL AVE, Baltimore, MD 21217
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William E Macdonnell P.a. 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 ID7113973355
PECOS Enrollment IDI20260223000115
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21217 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
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
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 4

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

MRS. SHANON PLESHETTE SNEAD CRNP
Clinical Nurse Specialist (Family Health)
1501 W MOUNT ROYAL AVE
BALTIMORE, MD 21217
Baltimore City (410) 225-1325
MARYLAND INSTITUTE COLLEGE OF ART
Clinic/Center (Health Service)
1501 W MOUNT ROYAL AVE, 2ND FLOOR
BALTIMORE, MD 21217
Baltimore City (410) 225-4118
ELIZABETH COOPER CRNP
Nurse Practitioner
1501 W MOUNT ROYAL AVE
BALTIMORE, MD 21217
Baltimore City (410) 225-8855
MICHAEL T. LAWRENCE M.D.
Family Medicine
1501 W MOUNT ROYAL AVE
BALTIMORE, MD 21217
Baltimore City (410) 225-8855

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 William Macdonnell's NPI number?

The NPI number for William Macdonnell is 1225086994. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is William Macdonnell located?

William Macdonnell practices at 1501 W Mount Royal Ave, Baltimore, MD 21217. The listed phone number is (410) 225-4118.

What is William Macdonnell's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is William Macdonnell enrolled in Medicare?

Yes. William Macdonnell 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.

When was this NPI record last updated?

The NPPES record for William Macdonnell was last updated on March 13, 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.