Provider Profile
Mary M. Masterson, P.A.
Unclaimed ProfileAbout Mary Masterson
Mary M. Masterson, P.A. is a physician assistant practicing in Baltimore, MD. Medicare claims data shows Mary provided 99 services to 94 patients. The services billed most often include emergency department visit with moderate level of medical decision making, emergency department visit with high level of medical decision making, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (410) 550-0350
- Email not available
Practice Locations
4940 EASTERN AVE
Baltimore, MD 21224
Procedures Most Often Billed to Medicare
99 services · 94 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
15 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
48 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
36 |
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 physician assistants at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 15 related providers in 2 groups
Other physician assistants in Baltimore 8
Same specialty, same city.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 7
Providers in MD who bill this service to Medicare most often.
Common questions
What does Mary M. Masterson specialize in?
Mary M. Masterson is a physician assistant in Baltimore, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mary M. Masterson located?
Mary M. Masterson is listed at 4940 Eastern Ave, Baltimore, MD 21224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mary M. Masterson's phone number?
The number on file is (410) 550-0350. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mary M. Masterson?
Mary M. Masterson's National Provider Identifier is 1982654893. 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
How much experience does Mary M. Masterson have?
Mary M. Masterson has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Mary M. Masterson do most often?
According to Medicare billing data, Mary M. Masterson provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mary M. Masterson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mary M. Masterson. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.