Doctor profile · Federal record

Dr. Benjamin Margolis, MD

Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Ann Arbor, MI

  • NPI 1013099928
  • Accepts Medicare
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
May 29, 2019
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Michigan #4301065167
Medicaid
MI #3164375

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013099928. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
225
Distinct HCPCS
5
Medicare allowed
$22,011
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 121 90 $94
99214 Established patient office or other outpatient visit, 30-39 minutes 40 38 $95
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 31 20 $81
99204 New patient office or other outpatient visit, 45-59 minutes 22 22 $129
99204 New patient office or other outpatient visit, 45-59 minutes 11 11 $135

In context: peer comparison

Among 17 peers in this city , average services per provider: 77. This provider delivers 2.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
426
Patients
74
Total drug cost
$36,611
Drug Type Claims Patients Total cost
Lisinopril Generic 61 20 $744
Amlodipine Besylate Generic 43 17 $491
Losartan Potassium Generic 38 12 $1,282
Nifedipine Er (Nifedipine) Brand 32 0 $1,355
Torsemide Generic 31 13 $699
Furosemide Generic 30 12 $341
Doxazosin Mesylate Generic 29 0 $664
Prednisone Generic 29 0 $268
Chlorthalidone Generic 22 0 $711
Hydrochlorothiazide Generic 21 0 $189

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Benjamin Margolis's medical specialty?
Dr. Benjamin Margolis practices Nephrology Physician in Ann Arbor, MI.
Where does Dr. Benjamin Margolis practice?
Dr. Benjamin Margolis practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Benjamin Margolis's NPI?
Dr. Benjamin Margolis's National Provider Identifier (NPI) is 1013099928, issued by NPPES.
Does Dr. Benjamin Margolis accept Medicare assignment?
Yes. Dr. Benjamin Margolis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Benjamin Margolis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.