DR. WILLIAM WALLACE ASHLEY JR. M.D., PH.D., M.B.A.
NPI 1033238647
Neurological Surgery in Baltimore, MD

Active since March 28, 2007PECOS EnrolledAccepts Medicare Assignment
5051 GREENSPRING AVE, SUITE 300, BALTIMORE, MD 21209(410) 601-4417(410) 601-7138 Get Directions Write a Review

NPPES record last updated: November 11, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William Wallace Ashley Jr. M.d., Ph.d., M.b.a. NPPES

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

DR. WILLIAM WALLACE ASHLEY JR. M.D., PH.D., M.B.A. (NPI 1033238647) is an individual neurological surgery provider in Baltimore, Maryland, licensed in Maryland (D82113) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Meritus Medical Center, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2001).

NPPES Registry Identity

NPI1033238647
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. WILLIAM WALLACE ASHLEY JR.Credential: M.D., PH.D., M.B.A.
Location Address5051 GREENSPRING AVE, SUITE 300Baltimore, MD 21209-4354
Mailing Address5051 Greenspring Ave, Suite 300Baltimore, MD 21209-4354 · (410) 601-4417 · Fax (410) 601-7138
Fax(410) 601-7138
Sole ProprietorYes
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2001
Enumeration DateMarch 28, 2007
Last NPPES UpdateNovember 11, 2016
NPI 1033238647 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License Licensed in MD · D82113
Definition

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

5051 GREENSPRING AVE, Baltimore, MD 21209

Other Identifiers 1

Other520486540MD · Employer Tax Id

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

Dr. William Wallace Ashley Jr. M.d., Ph.d., M.b.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 ID3375634728
PECOS Enrollment IDI20160824002718
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.

Areas of Expertise CMS Part B claims 12

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
137 services107 patients
Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist 36224
This procedure involves placing a small tube into your neck artery. It helps diagnose or treat certain conditions. A radiologist, a doctor specializing in medical imaging, reviews the process to ensure accuracy and safety.
72 services62 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
63 services63 patients
Imaging of blood vessel 75898
Imaging of blood vessels, also known as vascular imaging, is a non-invasive procedure that allows doctors to view the condition of your blood vessels. It employs techniques like ultrasound, CT scan, or MRI to capture images, enabling the detection of blockages or abnormalities.
41 services27 patients
3d radiographic procedure with computerized image postprocessing 76377
A 3D radiographic procedure with computerized image postprocessing is a high-tech imaging test. It uses X-rays to create detailed 3D images of the body. The computerized postprocessing further enhances these images for more precise diagnosis and treatment planning.
36 services24 patients
Review by radiologist of image for insertion of material to block blood flow 75894
This procedure involves a radiologist examining an image to plan the placement of a substance that will block blood flow in a specific area. This is usually done to prevent bleeding or to cut off the blood supply to a growth.
30 services27 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Meritus Medical Center

Acute Care Hospitals · Hagerstown, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210001
Location11116 Medical Campus RoadHagerstown, MD 21742 · Washington County
Emergency services Birthing friendly

Sinai Hospital Of Baltimore

Acute Care Hospitals · Baltimore, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210012
Location2401 West Belvedere AvenueBaltimore, MD 21215 · Baltimore City County
Emergency services Birthing friendly

Carroll Hospital Center

Acute Care Hospitals · Westminster, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210033
Location200 Memorial AvenueWestminster, MD 21157 · Carroll County
Emergency services Birthing friendly

Northwest Hospital Center

Acute Care Hospitals · Randallstown, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210040
Location5401 Old Court RoadRandallstown, MD 21133 · Baltimore County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21209 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
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 20

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

Obstetrics & Gynecology
5051 GREENSPRING AVE, SUITE 100
BALTIMORE, MD 21209
Psychiatry & Neurology (Neurology)
5051 GREENSPRING AVE
BALTIMORE, MD 21209
Obstetrics & Gynecology
5051 GREENSPRING AVE, SUITE 100
BALTIMORE, MD 21209
Neurological Surgery
5051 GREENSPRING AVE, SUITE 101
BALTIMORE, MD 21209
Psychiatry & Neurology (Behavioral Neurology & Neuropsychiatry)
5051 GREENSPRING AVE
BALTIMORE, MD 21209
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
5051 GREENSPRING AVE
BALTIMORE, MD 21209
Neurological Surgery
5051 GREENSPRING AVE, SUITE 101
BALTIMORE, MD 21209
Psychologist (Clinical)
5051 GREENSPRING AVE, SUITE 200
BALTIMORE, MD 21209

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 Ashley's NPI number?

The NPI number for William Ashley is 1033238647. It was assigned to this individual provider in the NPPES registry on March 28, 2007.

Where is William Ashley located?

William Ashley practices at 5051 Greenspring Ave Suite 300, Baltimore, MD 21209. The listed phone number is (410) 601-4417.

What is William Ashley's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is William Ashley enrolled in Medicare?

Yes. William Ashley 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.

Is William Ashley affiliated with any hospitals?

According to CMS data, William Ashley is affiliated with Meritus Medical Center, Sinai Hospital Of Baltimore, Carroll Hospital Center and Northwest Hospital Center.

When was this NPI record last updated?

The NPPES record for William Ashley was last updated on November 11, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.