RICHARD G QUIST MD MEDICAL CORPORATION INC
NPI 1447405808
Internal Medicine - Gastroenterology in Newport Beach, CA

Q: What is Richard G Quist MD Medical Corporation Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since November 25, 2008

520 SUPERIOR AVE STE 245, NEWPORT BEACH, CA 92663(949) 645-8300(949) 645-0200 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 4, 2026, Jul 23, 2026 (2 updates tracked since 2026).

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About Richard G Quist Md Medical Corporation Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RICHARD G QUIST MD MEDICAL CORPORATION INC (NPI 1447405808) is a healthcare organization registered as a gastroenterology in Newport Beach, California and active in the NPI registry since November 2008. The organization lists Richard G Quist, Ceo, as its authorized official.

NPPES Registry Identity

NPI1447405808

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameRICHARD G QUIST MD MEDICAL CORPORATION INC

Location Address520 SUPERIOR AVE STE 245Newport Beach, CA 92663-3642

Mailing Address520 Superior Ave Ste 245Newport Beach, CA 92663-3642 · (949) 645-8300 · Fax (949) 645-0200

Phone(949) 645-8300

Fax(949) 645-0200

Organization SubpartNo

Authorized OfficialRichard G QuistCeo · (714) 527-1082

Enumeration DateNovember 25, 2008

Last NPPES UpdateAugust 4, 20262 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1447405808 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · A65910

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

520 SUPERIOR AVE STE 245, Newport Beach, CA 92663

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Richard G Quist Md Medical Corporation Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Richard G Quist MD Medical Corporation Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Richard Quist, M.D.

Gastroenterology

NPI 1861436024

520 SUPERIOR AVE STE 245
Newport Beach, CA 92663

(949) 645-8300

✔ PECOS✔ Accepts MedicareSame address

David Braxton, M.D.

Pathology

NPI 1982921292

1 HOAG DR
Newport Beach, CA 92663

(949) 764-5610

✔ PECOS✔ Accepts Medicare0.4 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Richard G Quist MD Medical Corporation Inc's NPI number?

The NPI number for Richard G Quist MD Medical Corporation Inc is 1447405808. It was assigned to this organization in the NPPES registry on November 25, 2008.

Where is Richard G Quist MD Medical Corporation Inc located?

Richard G Quist MD Medical Corporation Inc is located at 520 Superior Ave Ste 245, Newport Beach, CA 92663. The listed phone number is (949) 645-8300.

What is Richard G Quist MD Medical Corporation Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Richard G Quist MD Medical Corporation Inc enrolled in Medicare?

Yes. Richard G Quist MD Medical Corporation Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Richard G Quist MD Medical Corporation Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Richard G Quist MD Medical Corporation Inc, in Gastroenterology and Pathology. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Richard G Quist MD Medical Corporation Inc was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.