Helen Byrnes
NPI 1538589528 · Acute Care Nurse Practitioner · Baltimore, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Byrnes is a Acute Care Nurse Practitioner provider in Baltimore, MD (NPI 1538589528).
Provider details
- NPI number
- 1538589528
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- R135143 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
832 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 335 | $14 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 319 | $125 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 121 | $84 |
| Biopsy and Aspiration of Bone Marrow Sample for Diagnosis38222 | 38 | $65 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 19 | $11 |
Typical Medicare-allowed amounts for these services range $11–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Valacyclovir Hclbrand: Valacyclovir | 74 | 34 |
| Posaconazole | 39 | 13 |
| Venetoclaxbrand: Venclexta | 33 | 13 |
| Moxifloxacin Hcl | 23 | 13 |
| Pantoprazole Sodium | 23 | 11 |
| Escitalopram Oxalate | 21 | — |
| Potassium Chloride | 19 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$204 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-17
- Last updated
- 2025-12-29
- Certified
- 2025-12-29
Frequently asked questions
- What is Helen Byrnes's NPI number?
- Helen Byrnes's National Provider Identifier (NPI) is 1538589528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Byrnes's specialty?
- Helen Byrnes is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Helen Byrnes located?
- Helen Byrnes's practice location on file with NPPES is 401 North Broadway, Baltimore, MD 21231-2410.
- What is Helen Byrnes's phone number?
- The practice phone number listed in the NPPES registry for Helen Byrnes is (410) 614-6416.
- Does Helen Byrnes accept Medicare?
- Helen Byrnes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Byrnes's NPI active?
- Yes — Helen Byrnes's NPI (1538589528) is active in the NPPES registry as of the last update on 2025-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.