Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1659450799 Individual Practitioner Male Practitioner

Dr. Irwin Robins Barr , MD

Internal Medicine • Fairfield, CA

Professional Overview & Biography Verified Profile Summary

Dr. Irwin Barr, MD is a registered healthcare professional specializing in Internal Medicine in Fairfield, CA. Practice services are available at 1550 GATEWAY BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1550 Gateway Blvd

Fairfield, CA 945336901

Telephone 7074274000
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Fairfield, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.2 Yrs
State Avg: 26.6 Yrs
Regional Practice Density
59 Specialists

Practicing in Fairfield, CA (18502 Statewide)

Telehealth Adoption Rate
30.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA G69947

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
00G699470 (CA)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

33 Associated Practitioners
NPI 1093276529

Doctor of Medicine (M.D.)

NPI 1184702904

Doctor of Medicine (M.D.)

NPI 1235877150

Doctor of Osteopathic Medicine (D.O.)

Dr. Sangeeta Joshi , MD

Obstetrics & Gynecology

NPI 1265510838

Doctor of Medicine (M.D.)

NPI 1306924295

Doctor of Medicine (M.D.)

Dr. Daniel Flores , MD

Internal Medicine

NPI 1326198037

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 1550 GATEWAY BLVD, FAIRFIELD, CA 945336901 (Tel: 7074274000)

📍
Updated Business Mailing Address July 08, 2007

Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as IRWIN BARR, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #G69947 in CA)

🟢
Initial NPI Registration & Enumeration November 02, 2006

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: 1659450799
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 02, 2006
Last Update: July 08, 2007
Sole Proprietor: No

Mailing Address

1800 Harrison St Fl 7

Oakland, CA 946123429

Phone: 5106256262

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.