Eric Williamson, CRNP
NPI 1205337540 · Acute Care Nurse Practitioner · Baltimore, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Williamson, CRNP is a Acute Care Nurse Practitioner provider in Baltimore, MD (NPI 1205337540).
Provider details
- NPI number
- 1205337540
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Male
- Sole proprietor
- No
- License
- R201656 (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
8 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
320 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 145 | $184 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 114 | $101 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 21 | $12 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 15 | $73 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 14 | $123 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 11 | $38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 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
- 2018-02-22
- Last updated
- 2018-02-22
Frequently asked questions
- What is Eric Williamson's NPI number?
- Eric Williamson's National Provider Identifier (NPI) is 1205337540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Williamson's specialty?
- Eric Williamson is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Eric Williamson located?
- Eric Williamson's practice location on file with NPPES is 22 S Greene St, Baltimore, MD 21201-1544.
- What is Eric Williamson's phone number?
- The practice phone number listed in the NPPES registry for Eric Williamson is (410) 328-8667.
- Does Eric Williamson accept Medicare?
- Eric Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Williamson's NPI active?
- Yes — Eric Williamson's NPI (1205337540) is active in the NPPES registry as of the last update on 2018-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.