Doctor profile · Federal record

Dr. Eric Mark Lopez

Nephrology Physician (CMS: Nephrology) · Hagerstown, MD

  • NPI 1942543954
  • Accepts Medicare
  • MIPS 74.4 / 100 · 2023
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
12931 Oak Hill Ave
Hagerstown, MD 217422914
(301) 797-9600
Additional location
500 University Dr, Mc H085
Hershey, PA 170332360
(717) 531-8603

Credentials & registration

NPPES · NUCC
NPI registered
March 2013 — 13 yrs on file
Profile last updated
September 16, 2020
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Maryland #D0089958

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942543954. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,420
Distinct HCPCS
10
Medicare allowed
$147,886
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 405 200 $79
99214 Established patient office or other outpatient visit, 30-39 minutes 381 212 $123
90935 Hemodialysis procedure with physician evaluation 131 63 $71
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 130 120 $173
99213 Established patient office or other outpatient visit, 20-29 minutes 103 78 $87
81001 Manual urinalysis test with examination using microscope, automated 82 81 $3
99205 New patient office or other outpatient visit, 60-74 minutes 82 82 $213
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 41 34 $49
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 31 30 $130
99204 New patient office or other outpatient visit, 45-59 minutes 22 22 $156

In context: peer comparison

Among 4 peers in this city , average services per provider: 159. This provider delivers 8.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 1 $22.63

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,179
Patients
390
Total drug cost
$155,527
Drug Type Claims Patients Total cost
Famotidine Generic 201 59 $2,282
Amlodipine Besylate Generic 175 67 $1,366
Losartan Potassium Generic 107 38 $1,422
Chlorthalidone Generic 91 30 $1,499
Farxiga (Dapagliflozin Propanediol) Brand 86 18 $84,761
Metformin Hcl Generic 72 25 $490
Furosemide Generic 71 30 $456
Calcitriol Generic 63 24 $986
Lisinopril Generic 53 16 $236
Jardiance (Empagliflozin) Brand 52 16 $55,021

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Eric Mark Lopez's medical specialty?
Dr. Eric Mark Lopez practices Nephrology Physician in Hagerstown, MD.
Where does Dr. Eric Mark Lopez practice?
Dr. Eric Mark Lopez practices at 12931 Oak Hill Ave, Hagerstown, MD 217422914. Office phone: 3017979600.
What is Dr. Eric Mark Lopez's NPI?
Dr. Eric Mark Lopez's National Provider Identifier (NPI) is 1942543954, issued by NPPES.
Does Dr. Eric Mark Lopez accept Medicare assignment?
Yes. Dr. Eric Mark Lopez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eric Mark Lopez commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Hemodialysis procedure with physician evaluation (HCPCS 90935). Source: CMS Medicare Physician & Other Practitioners file.