Eric Mark Lopez
NPI 1942543954 · Nephrology Physician · Hagerstown, MD
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Mark Lopez is a Nephrology Physician provider in Hagerstown, MD (NPI 1942543954).
Provider details
- NPI number
- 1942543954
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- D0089958 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
563 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $86 |
| 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 | 140 | $15 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 81 | $124 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 57 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $59 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 193 | 85 |
| Famotidine | 128 | 59 |
| Losartan Potassium | 111 | 53 |
| Atorvastatin Calcium | 105 | 58 |
| Lisinopril | 99 | 44 |
| Levothyroxine Sodium | 92 | 37 |
| Furosemide | 86 | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
Additional practice locations (1)
- 500 University DrMc H085Hershey, PA 17033-2360Phone: (717) 531-8603
Registry dates
- Enumerated
- 2013-03-28
- Last updated
- 2020-09-16
- Certified
- 2020-09-16
Frequently asked questions
- What is Eric Mark Lopez's NPI number?
- Eric Mark Lopez's National Provider Identifier (NPI) is 1942543954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Mark Lopez's specialty?
- Eric Mark Lopez is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Mark Lopez located?
- Eric Mark Lopez's practice location on file with NPPES is 12931 Oak Hill Ave, Hagerstown, MD 21742-2914.
- What is Eric Mark Lopez's phone number?
- The practice phone number listed in the NPPES registry for Eric Mark Lopez is (301) 797-9600.
- Does Eric Mark Lopez accept Medicare?
- Eric Mark Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Mark Lopez's NPI active?
- Yes — Eric Mark Lopez's NPI (1942543954) is active in the NPPES registry as of the last update on 2020-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.