Doctor profile · Federal record

Dr. Gregory Bellig, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Danville, CA

  • NPI 1558354993
  • Accepts Medicare
  • MIPS 58.0 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
402 Railroad Ave
Danville, CA 945263825
(925) 272-9267

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
February 28, 2026
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
California #A81822
Medicaid
CA #GR0028370

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558354993. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
53
Distinct HCPCS
3
Medicare allowed
$9,977
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 19 19 $174
00811 Anesthesia for other procedure on large bowel using an endoscope 18 18 $142
01922 Anesthesia for x-ray or radiation therapy 16 16 $258

In context: peer comparison

Among 1 peers in this city , average services per provider: 17. This provider delivers 3.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Bellig's medical specialty?
Dr. Gregory Bellig practices Anesthesiology Physician in Danville, CA.
Where does Dr. Gregory Bellig practice?
Dr. Gregory Bellig practices at 402 Railroad Ave, Danville, CA 945263825. Office phone: 9252729267.
What is Dr. Gregory Bellig's NPI?
Dr. Gregory Bellig's National Provider Identifier (NPI) is 1558354993, issued by NPPES.
Does Dr. Gregory Bellig accept Medicare assignment?
Yes. Dr. Gregory Bellig accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Bellig 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 large bowel using an endoscope (HCPCS 00811); Anesthesia for x-ray or radiation therapy (HCPCS 01922). Source: CMS Medicare Physician & Other Practitioners file.