Doctor profile · Federal record
Dr. William Ashley, M.D., PH.D., M.B.A.
Neurological Surgery Physician (CMS: Neurosurgery) · Baltimore, MD
- NPI 1033238647
- Accepts Medicare
- 25 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
5051 Greenspring Ave, Suite 300
Baltimore, MD 212094354
(410) 601-4417
fax (410) 601-7138
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- November 11, 2016
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- Maryland #D82113
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033238647. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
471
Distinct HCPCS
10
Medicare allowed
$156,540
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 129 | 96 | $132 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 59 | 59 | $228 | |
75898 |
Imaging of blood vessel | 46 | 25 | $96 | |
36224 |
Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist | 45 | 39 | $402 | |
61624 |
Occlusion of central nervous system or spinal cord artery | 31 | 24 | $1,154 | |
75894 |
Review by radiologist of image for insertion of material to block blood flow | 30 | 25 | $75 | |
36226 |
Insertion of tube into brain artery for diagnosis or treatment with review by radiologist | 23 | 19 | $259 | |
36227 |
Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist | 19 | 18 | $140 | |
61645 |
Removal of blood clot and injection to dissolve blood clot from head artery using fluoroscopic guidance | 19 | 19 | $880 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 19 | 19 | $188 |
In context: peer comparison
Among 19 peers in Baltimore Neurological Surgery Physician, average services per provider: 50. This provider delivers 9.4× the peer median.Open Payments
Industry payments received
All-time total
$378
Transactions
10
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Route 92 Medical, INC. | 1 | $133.69 | |
| Medtronic, INC. | 4 | $103.26 | |
| MicroVention, INC. | 1 | $51.65 | |
| DePuy Synthes Sales INC. | 1 | $25.04 | |
| Abbvie INC. | 1 | $24.94 | |
| Abbott Laboratories | 1 | $24.91 | |
| LeMaitre Vascular, INC. | 1 | $14.98 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Ashley's medical specialty?
Dr. William Ashley practices Neurological Surgery Physician in Baltimore, MD.
Where does Dr. William Ashley practice?
Dr. William Ashley practices at 5051 Greenspring Ave, Baltimore, MD 212094354. Office phone: 4106014417.
What is Dr. William Ashley's NPI?
Dr. William Ashley's National Provider Identifier (NPI) is 1033238647, issued by NPPES.
Does Dr. William Ashley accept Medicare assignment?
Yes. Dr. William Ashley accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Ashley commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Imaging of blood vessel (HCPCS 75898). Source: CMS Medicare Physician & Other Practitioners file.