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HELEN PREVAS M.D.
NPI 1720380330
Internal Medicine in Baltimore, MD

Active since December 02, 2010PECOS EnrolledAccepts Medicare Assignment
600 N WOLFE ST, BALTIMORE, MD 21287(410) 955-7911 Get Directions Write a Review

NPPES record last updated: March 23, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Helen Prevas M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HELEN PREVAS M.D. (NPI 1720380330) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (9249) and active in the NPI registry since December 2010. She is enrolled in Medicare PECOS, is affiliated with Luminis Health Anne Arundel Medical Center, Inc, and is a graduate of Johns Hopkins University School Of Medicine (2012).

NPPES Registry Identity

NPI1720380330
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameHELEN PREVASCredential: M.D.
Location Address600 N WOLFE STBaltimore, MD 21287-0005
Mailing Address600 N Wolfe StBaltimore, MD 21287-0005 · (410) 955-7911
Phone(410) 955-7911
Sole ProprietorYes
Medical School CMSJohns Hopkins University School Of MedicineGraduated 2012
Enumeration DateDecember 2, 2010
Last NPPES UpdateMarch 23, 2012
✔ NPI 1720380330 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · 9249
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
600 N WOLFE ST, Baltimore, MD 21287
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Helen Prevas M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335398692
PECOS Enrollment IDI20170106000021
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Helen Prevas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Luminis Health Medical Group, LLC
12 mi
Family Medicine
8109 RITCHIE HWY, SUITE 100
Pasadena, MD 21122
  • Reassigned Medicare billing, Maryland enrollment
  • 794 clinicians in this Medicare group
NPI 1063837490 (443) 270-8600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
99 services95 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
36 services31 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
30 services29 patients
Emergent insertion of breathing tube into windpipe using an endoscope 31500
This is a procedure where a thin tube is inserted into your windpipe to aid in breathing. It's done in emergency situations, using an endoscope, a tool with a light and camera, to ensure correct placement.
21 services20 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
20 services20 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
20 services20 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Luminis Health Anne Arundel Medical Center, Inc

Acute Care Hospitals · Annapolis, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210023
Location2001 Medical ParkwayAnnapolis, MD 21401 · Anne Arundel County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PAMELA KIMZEY DONOHUE SCD, PA-C
Physician Assistant (Medical)
600 N WOLFE ST, NELSON 2-133
BALTIMORE, MD 21287
Baltimore City (410) 955-5232
MR. CHRISTOPHER DAVID SCHRIEBER M.S., PA-C
Physician Assistant
600 N WOLFE ST, MARBURG B-186
BALTIMORE, MD 21287
Baltimore City (410) 955-8708
DR. SABRINA CHRISTINE SOPHA M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-3580
SANDRA KING D.H.
Dental Hygienist
600 N WOLFE ST, BLALOCK 266
BALTIMORE, MD 21287
Baltimore City (410) 955-6662
THERESA J RUDDY C.P.N.P., CRNP
Nurse Practitioner (Acute Care)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5260
DR. SUMAN PAUL M.B.B.S, PHD
Internal Medicine (Medical Oncology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
MS. SARAH CATHERINE COLLICA
Psychiatry & Neurology (Psychiatry)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (443) 287-4701
JEFF S EHRESMAN
Student in an Organized Health Care Education/Training Program
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Helen Prevas's NPI number?

The NPI number for Helen Prevas is 1720380330. It was assigned to this individual provider in the NPPES registry on December 2, 2010.

Where is Helen Prevas located?

Helen Prevas practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-7911.

What is Helen Prevas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Helen Prevas enrolled in Medicare?

Yes. Helen Prevas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Helen Prevas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Helen Prevas reassigns Medicare benefits to Luminis Health Medical Group, LLC (Pasadena, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Helen Prevas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Helen Prevas affiliated with any hospitals?

According to CMS data, Helen Prevas is affiliated with Luminis Health Anne Arundel Medical Center, Inc.

When was this NPI record last updated?

The NPPES record for Helen Prevas was last updated on March 23, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.