Doctor profile · Federal record

Dr. Atam Singh, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · Riverside, CA

  • NPI 1548271166
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 52 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5256 Mission Blvd
Riverside, CA 925094624
(951) 955-5380
fax (951) 955-5388

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
October 2, 2012
Year of graduation
1974 — 52 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
California #A66788

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548271166. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,015
Distinct HCPCS
5
Medicare allowed
$381,477
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,733 780 $130
99215 Established patient office or other outpatient visit, 40-54 minutes 479 197 $175
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 388 135 $35
99443 Telephone medical discussion with physician, 21-30 minutes 295 158 $131
99204 New patient office or other outpatient visit, 45-59 minutes 120 120 $169

In context: peer comparison

Among 3 peers in Riverside Endocrinology, Diabetes & Metabolism Physician, average services per provider: 305. This provider delivers 9.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,107
Transactions
49
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novo Nordisk INC 16 $310.89
Ascensia Diabetes Care US INC. 6 $118.78
Lilly USA, LLC 5 $97.67
Amgen INC. 4 $81.65
Abbvie INC. 3 $81.57
Ultragenyx Pharmaceutical INC. 3 $74.46
Medtronic, INC. 2 $66.42
Mannkind Corporation 3 $57.86
CeQur Corporation 1 $27.59
Ascendis Pharma INC 1 $24.42
Averitas Pharma INC. 1 $23.55
Abbott Laboratories 1 $22.59
AstraZeneca Pharmaceuticals Lp 1 $21.22
Boehringer Ingelheim Pharmaceuticals, INC. 1 $21.11
Antares Pharma, INC. 1 $20.90

By nature of payment

Food and Beverage
$1,107

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,673
Patients
977
Total drug cost
$1,901,619
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 641 149 $12,041
Trulicity (Dulaglutide) Brand 463 94 $619,875
Ozempic (Semaglutide) Brand 412 89 $453,766
Metformin Hcl Generic 398 119 $3,622
Novolog Flexpen (Insulin Aspart) Brand 245 75 $215,329
Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) Brand 241 69 $136,034
Glipizide Generic 237 64 $3,109
Jardiance (Empagliflozin) Brand 215 59 $232,116
Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) Brand 180 71 $20,347
Basaglar Kwikpen U-100 (Insulin Glargine,Hum.Rec.Anlog) Brand 163 45 $70,492

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Atam Singh's medical specialty?
Dr. Atam Singh practices Endocrinology, Diabetes & Metabolism Physician in Riverside, CA.
Where does Dr. Atam Singh practice?
Dr. Atam Singh practices at 5256 Mission Blvd, Riverside, CA 925094624. Office phone: 9519555380.
What is Dr. Atam Singh's NPI?
Dr. Atam Singh's National Provider Identifier (NPI) is 1548271166, issued by NPPES.
Does Dr. Atam Singh accept Medicare assignment?
Yes. Dr. Atam Singh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Atam Singh 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 99215); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.