Physician Profile
Unclaimed ProfileAbout Dr. Walker
Alexander O. Walker, M.D. is a healthcare provider in Melrose, MA specializing in emergency medicine. Alexander trained at Boston University School of Medicine, graduating in 2000. According to Medicare claims data, Alexander cared for 106 Medicare patients across 107 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (781) 979-3635
- Email not available
Practice Locations
585 LEBANON ST
Melrose, MA 02176
Procedures Most Often Billed to Medicare
107 services · 106 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Electrocardiogram (ecg) 1 to 3 leads with review by physician only | Treatment | 93042 |
28 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
50 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
29 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other emergency medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other emergency medicines in Melrose 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Boston University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at Boston University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Electrocardiogram (ecg) 1 to 3 leads with review by physician only 7
Providers in MA who bill this service to Medicare most often.
Common questions
What does Dr. Walker specialize in?
Dr. Walker is an emergency medicine in Melrose, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
Where is Dr. Walker located?
Dr. Walker is listed at 585 LEBANON ST, Melrose, MA 02176. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Walker's phone number?
The number on file is (781) 979-3635. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Walker's NPI number?
Dr. Walker's National Provider Identifier is 1033182688. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Walker go to medical school?
Dr. Walker attended Boston University School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Walker been practicing?
Dr. Walker has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Walker do most often?
According to Medicare billing data, Dr. Walker provides treatments such as electrocardiogram 1 to 3 leads with review by physician only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Walker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Walker. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.