Doctor profile · Federal record

Dr. Sapna Siddharth, MD

Critical Care Medicine (Internal Medicine) Physician (CMS: Critical Care (Intensivists)) · Springfield, IL

  • NPI 1538506357
  • Accepts Medicare
  • MIPS 92.6 / 100 · 2023
  • 22 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
701 N 1St St
Springfield, IL 62781
(217) 528-7541
fax (217) 606-3057
Mailing address
Po Box 19248
Springfield, IL 627949248

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
July 14, 2025
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RC0200X — NUCC code
State license (1)
Illinois #036145293

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538506357. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
302
Distinct HCPCS
4
Medicare allowed
$39,285
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 108 63 $78
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 105 61 $118
99291 Critical care, first 30-74 minutes 76 57 $213
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 12 $172

In context: peer comparison

Among 10 peers in this city , average services per provider: 80. This provider delivers 3.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sapna Siddharth's medical specialty?
Dr. Sapna Siddharth practices Critical Care Medicine (Internal Medicine) Physician in Springfield, IL.
Where does Dr. Sapna Siddharth practice?
Dr. Sapna Siddharth practices at 701 N 1St St, Springfield, IL 62781. Office phone: 2175287541.
What is Dr. Sapna Siddharth's NPI?
Dr. Sapna Siddharth's National Provider Identifier (NPI) is 1538506357, issued by NPPES.
Does Dr. Sapna Siddharth accept Medicare assignment?
Yes. Dr. Sapna Siddharth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sapna Siddharth commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.