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Active NPI 1558354993 Individual Practitioner Male Practitioner

Dr. Gregory James Bellig , MD

Anesthesiology • Danville, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Bellig, MD is a certified Anesthesiology practicing in Danville, CA. With approximately 28 years of clinical experience since graduating from Georgetown University School Of Medicine in 1998, Dr. Bellig delivers high-quality medical care to the local community at 402 RAILROAD AVE.

Dr. Bellig is affiliated with Cep America - Anesthesia Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure on large bowel using an endoscope, anesthesia for x-ray or radiation therapy. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

402 Railroad Ave

Danville, CA 945263825

Telephone 9252729267

Medicare Profile & Education

Medical School

Georgetown University School Of Medicine

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Danville, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
28 Yrs +2.5 yrs vs City Avg
City Avg: 25.5 Yrs
State Avg: 27.4 Yrs
Regional Practice Density
4 Specialists

Practicing in Danville, CA (7879 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
88.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Bellig (28 Years) 28 Yrs
Danville Specialty Average (25.5 Years) 25.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2023)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope
19 19 $1567.16 $173.73
00811 Anesthesia for procedure on large bowel using an endoscope
18 18 $1249.56 $141.92
01922 Anesthesia for x-ray or radiation therapy
16 16 $2303.75 $257.60

Medical Specialties & State Licenses

CMS Verified: 2026-02-28
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License CA A81822

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
GR0028370 (CA)
Commercial Insurance / Payer ID Medicare Ptan
CL390Z

Hospital & Practice Group Affiliations

Cep America - Anesthesia Pc

2000 Mowry Ave, Fremont, CA 945381716

Phone: 5107971111

Cep America - Anesthesia Pc

1601 Ygnacio Valley Rd, Walnut Creek, CA 945983122

Phone: 9259393000

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

20 Historical Events
📍
Updated Practice Location February 28, 2026

Registered at 402 RAILROAD AVE, DANVILLE, CA 945263825 (Tel: 9252729267)

📍
Updated Business Mailing Address February 28, 2026

Registered at 402 RAILROAD AVE, DANVILLE, CA 945263825 (Tel: 9168130238)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 28, 2026

Anesthesiology (License #A81822 in CA)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 30, 2023

Anesthesiology (License #MD456369 in PA)

NPI Profile Active March 17, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location March 17, 2018

Registered at 3333 EVERGREEN DR NE, GRAND RAPIDS, MI 495259493 (Tel: 6163644200)

📍
Updated Business Mailing Address March 17, 2018

Registered at PO BOX 858, MC A410, HERSHEY, PA 170330858 (Tel: 8002431455)

👤
Provider Name / Credentials Updated March 17, 2018

Recorded as GREGORY BELLIG, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2018

Anesthesiology (License #A81822 in CA)

NPI Profile Active January 02, 2018

NPI status registered as active in NPPES database

📍
Updated Practice Location January 02, 2018

Registered at 3333 EVERGREEN DR NE, GRAND RAPIDS, MI 495259493 (Tel: 6163644200)

📍
Updated Business Mailing Address January 02, 2018

Registered at PO BOX 858, MC A410, HERSHEY, PA 170330858 (Tel: 8002431455)

👤
Provider Name / Credentials Updated January 02, 2018

Recorded as GREGORY BELLIG, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 02, 2018

Anesthesiology (License #4301113241 in MI)

NPI Profile Active September 15, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location September 15, 2016

Registered at 500 UNIVERSITY DR, HERSHEY, PA 170332360 (Tel: 7175316597)

📍
Updated Business Mailing Address September 15, 2016

Registered at PO BOX 858, MC A410, HERSHEY, PA 170330858 (Tel: 8002431455)

👤
Provider Name / Credentials Updated September 15, 2016

Recorded as GREGORY BELLIG, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 15, 2016

Anesthesiology (License #MD456369 in PA)

🟢
Initial NPI Registration & Enumeration August 30, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1558354993
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 30, 2005
Last Update: February 28, 2026
Sole Proprietor: No

Mailing Address

402 Railroad Ave

Danville, CA 945263825

Phone: 9168130238

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.