Active NPI
Richard G Quist MD Medical Corporation Inc
- Gastroenterology Physician
- Newport Beach, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- A65910
- Legal business name
- RICHARD G QUIST MD MEDICAL CORPORATION INC
- Practice address
- 520 Superior Ave Ste 245
Newport Beach, CA 92663-3642 - Phone
- (949) 645-8300
- Fax
- (949) 645-0200
- NPI assigned
- Nov 25, 2008
- Last updated
- Aug 4, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Richard G Quist
- Title
- Ceo
- Phone
- (714) 527-1082
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | A65910 | CA | Primary |
Addresses
Primary practice location
520 Superior Ave Ste 245
Newport Beach, CA 92663-3642
Mailing address
520 Superior Ave Ste 245
Newport Beach, CA 92663-3642
Phone (949) 645-8300
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 05D2141819 | Richard G. Quist MD, Medical Corp, Inc. | Compliance | Oct 24, 2026 |
National Provider Directory
National Provider DirectoryLocations
16405 Sand Canyon Ave
Bldg A
Irvine, CA 92618
520 Superior Ave
Ste 245
Newport Beach, CA 92663
Phone (310) 344-1017
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/EEEDBA
Practitioners & affiliated clinicians
Practitioners 2
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Gastroenterology Physician
- Newport Beach, CA
- NPI 1861436024
-
- Anatomic Pathology & Clinical Pathology Physician
- Newport Beach, CA
- NPI 1982921292
Single Specialty
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1227571200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1785801600000",
"number": "1447405808",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "520 SUPERIOR AVE STE 245",
"city": "NEWPORT BEACH",
"state": "CA",
"postal_code": "926633642",
"telephone_number": "949-645-8300",
"fax_number": "949-645-0200"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "520 SUPERIOR AVE STE 245",
"city": "NEWPORT BEACH",
"state": "CA",
"postal_code": "926633642",
"telephone_number": "949-645-8300",
"fax_number": "949-645-0200"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "RICHARD G QUIST MD MEDICAL CORPORATION INC",
"organizational_subpart": "NO",
"enumeration_date": "2008-11-25",
"last_updated": "2026-08-04",
"certification_date": "2026-08-04",
"status": "A",
"authorized_official_last_name": "QUIST",
"authorized_official_first_name": "RICHARD",
"authorized_official_middle_name": "G",
"authorized_official_title_or_position": "CEO",
"authorized_official_telephone_number": "714-527-1082"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Gastroenterology",
"state": "CA",
"license": "A65910",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Newport Beach, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.