Doctor profile · Federal record

Dr. Gary Singer, M.D.

Nephrology Physician (CMS: Nephrology) · Saint Peters, MO

  • NPI 1366439283
  • Accepts Medicare
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
70 Jungermann Cir Ste 302
Saint Peters, MO 633761637
(636) 720-0310
fax (636) 720-0311

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
August 9, 2022
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Missouri #108436
Medicaid
MO #208058230

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366439283. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,805
Distinct HCPCS
10
Medicare allowed
$201,079
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 429 145 $77
99214 Established patient office or other outpatient visit, 30-39 minutes 398 265 $95
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 154 71 $114
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 106 18 $47
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 104 59 $334
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 101 91 $167
99213 Established patient office or other outpatient visit, 20-29 minutes 97 92 $77
99215 Established patient office or other outpatient visit, 40-54 minutes 88 64 $97
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 81 17 $48
99458 Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 55 17 $38

In context: peer comparison

Among 1 peers in Saint Peters Nephrology Physician, average services per provider: 106. This provider delivers 17× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$22,500
Transactions
71
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 28 $21,282.75
Nxstage Medical, INC. 1 $220.76
Fresenius USA Marketing, INC. 7 $208.13
Amgen INC. 12 $186.13
Travere Therapeutics, INC. 4 $154.86
Novartis Pharmaceuticals Corporation 4 $79.55
Boehringer Ingelheim Pharmaceuticals, INC. 3 $66.16
Otsuka America Pharmaceutical, INC. 2 $48.77
Novo Nordisk INC 2 $44.23
Ardelyx, INC. 2 $43.81
Akebia Therapeutics INC 2 $39.80
CorMedix INC. 1 $28.76
Calliditas Therapeutics US INC. 1 $24.48
Bayer Healthcare Pharmaceuticals INC. 1 $23.18
GlaxoSmithKline, LLC. 1 $17.78

By nature of payment

Consulting Fee
$10,260
Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$9,500
Food and Beverage
$1,649
Travel and Lodging
$1,028
Education
$64

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,407
Patients
513
Total drug cost
$85,734
Drug Type Claims Patients Total cost
Furosemide Generic 180 69 $1,072
Losartan Potassium Generic 159 57 $1,842
Amlodipine Besylate Generic 156 60 $1,153
Lisinopril Generic 126 46 $1,017
Torsemide Generic 121 44 $2,540
Carvedilol Generic 95 36 $975
Chlorthalidone Generic 86 34 $706
Sevelamer Carbonate Generic 83 21 $18,634
Spironolactone Generic 83 32 $592
Farxiga (Dapagliflozin Propanediol) Brand 67 19 $53,391

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Singer's medical specialty?
Dr. Gary Singer practices Nephrology Physician in Saint Peters, MO.
Where does Dr. Gary Singer practice?
Dr. Gary Singer practices at 70 Jungermann Cir Ste 302, Saint Peters, MO 633761637. Office phone: 6367200310.
What is Dr. Gary Singer's NPI?
Dr. Gary Singer's National Provider Identifier (NPI) is 1366439283, issued by NPPES.
Does Dr. Gary Singer accept Medicare assignment?
Yes. Dr. Gary Singer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Singer 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); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.