Physician Profile
Helen Prevas, M.D.
Unclaimed ProfileAbout Dr. Prevas
Helen Prevas, M.D. is a healthcare provider in Baltimore, MD specializing in internal medicine. Helen trained at Johns Hopkins University School of Medicine, graduating in 2012. According to Medicare claims data, Helen cared for 228 Medicare patients across 239 services. The services billed most often include critical care, first 30-74 minutes, ultrasonic guidance for blood vessel access, and insertion of artery tube for blood sampling or infusion through skin.
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
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 955-7911
- Email not available
Practice Locations
600 N WOLFE ST
Baltimore, MD 21287
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
239 services · 228 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
30 | More often than most peers in Internal Medicine |
| Emergent insertion of breathing tube into windpipe using an endoscope | Procedure | 31500 |
21 | More often than most peers in Internal Medicine |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
20 | More often than most peers in Internal Medicine |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
36 | More often than most peers in Internal Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
99 | More often than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
20 | Less often than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
13 | Less often than most peers in Internal Medicine |
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 internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
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 — 32 related providers in 4 groups
Other internists in Baltimore 8
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Johns Hopkins University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in MD who bill this service to Medicare most often.
Common questions
What is Helen Prevas's specialty?
Helen Prevas is an internist in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Helen Prevas?
Helen Prevas 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
How do I contact Helen Prevas?
The number on file is (410) 955-7911. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Helen Prevas's NPI number?
Helen Prevas's National Provider Identifier is 1720380330. 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
What is Helen Prevas's education?
Helen Prevas attended Johns Hopkins University School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Helen Prevas been practicing?
Helen Prevas has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What is Helen Prevas known for?
According to Medicare billing data, Helen Prevas performs procedures including insertion of artery tube for blood sampling or infusion through skin, emergent insertion of breathing tube into windpipe using an endoscope and insertion of non-tunneled central venous tube for infusion; reads or performs imaging such as ultrasonic guidance for blood vessel access, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Helen Prevas confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Helen Prevas. 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.