Physician Profile
Unclaimed ProfileAbout MARKOWSKI
Based in Baltimore, MD, Mark Christopher Markowski, M.D., PhD is listed in the NPI registry under medical oncology. Mark graduated from Georgetown University School of Medicine in 2009. Mark is also listed as specializing in internal medicine and hematology & oncology. According to Medicare claims data, Mark cared for 256 Medicare patients across 543 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
- (410) 955-3707
- Email not available
Practice Locations
600 N WOLFE ST
Baltimore, MD 21287
Procedures Most Often Billed to Medicare
543 services · 256 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
275 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
190 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
55 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
12 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
11 |
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 medical oncology specialists at this location 4
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 medical oncology specialists in Baltimore 5
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Markowski specialize in?
Dr. Markowski is a medical oncology in Baltimore, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “MEDICAL ONCOLOGY”.
NPI registry
Where is Dr. Markowski located?
Dr. Markowski is listed at 600 N WOLFE ST, Baltimore, MD 21287. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Markowski's phone number?
The number on file is (410) 955-3707. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Markowski's NPI number?
Dr. Markowski's National Provider Identifier is 1689809188. 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. Markowski go to medical school?
Dr. Markowski attended Georgetown University School of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Markowski been practicing?
Dr. Markowski has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Markowski do most often?
According to Medicare billing data, Dr. Markowski the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Markowski confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Markowski. 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.