Doctor profile · Federal record

Dr. Margaret Zanger, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Springfield, MO

  • NPI 1659539013
  • Accepts Medicare
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3801 S National Ave
Springfield, MO 658075210
(417) 269-6000
Mailing address
1000 E Primrose St Ste 520
Springfield, MO 658075180

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
April 6, 2017
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Missouri #2012016186

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659539013. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42
Distinct HCPCS
3
Medicare allowed
$3,557
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 18 18 $69
00400 Anesthesia for other procedure on skin of arms, legs, and front body 13 13 $98
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope 11 11 $95

In context: peer comparison

Among 22 peers in Springfield Anesthesiology Physician, average services per provider: 19. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$88
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 2 $37.57
Vertex Pharmaceuticals Incorporated 2 $36.04
Medtronic, INC. 1 $14.82

By nature of payment

Food and Beverage
$88

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Zanger's medical specialty?
Dr. Margaret Zanger practices Anesthesiology Physician in Springfield, MO.
Where does Dr. Margaret Zanger practice?
Dr. Margaret Zanger practices at 3801 S National Ave, Springfield, MO 658075210. Office phone: 4172696000.
What is Dr. Margaret Zanger's NPI?
Dr. Margaret Zanger's National Provider Identifier (NPI) is 1659539013, issued by NPPES.
Does Dr. Margaret Zanger accept Medicare assignment?
Yes. Dr. Margaret Zanger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Zanger commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on skin of arms, legs, and front body (HCPCS 00400); Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope (HCPCS 00732). Source: CMS Medicare Physician & Other Practitioners file.