Richard Todd Frederick, M.D.
Gastroenterology · Internal Medicine (CMS) · San Francisco, CA
At a glance
1100 Van Ness Ave, San Francisco, CA 94109-6978
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Aug 26, 2021. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1100 Van Ness AveSan Francisco, CA 94109-6978
Additional reported practice locations
1601 Esplanade Ste 3Chico, CA 959263370
Phone: 4156001020
Fax: 4156001005 990 Sonoma Ave
Santa Rosa, CA 954044802
Phone: 4156001020
Fax: 4156001005 2367 Harrison Ave
Eureka, CA 955013216
Phone: 7074459015
Fax: 7074459014 1189 E Herndon Ave
Fresno, CA 937203167
Phone: 9167324380
Fax: 9167390893 1401 Spanos Ct Ste 125
Modesto, CA 953552814
Phone: 4156001000
Fax: 4155587051 101 Rowland Way Ste 220
Novato, CA 949455056
Phone: 4156001020
Fax: 4156001005 3300 Webster St Ste 202
Oakland, CA 946093120
Phone: 5102081777
Fax: 5102081776 795 El Camino Real
Palo Alto, CA 943012302
Phone: 4156001020
Fax: 4156001005 1315 Alhambra Blvd Ste 210
Sacramento, CA 958165246
Phone: 9167324380
Fax: 9167390893 1431 Noriega St
San Francisco, CA 941224431
Phone: 4156001020
Fax: 4156001005 3880 S Bascom Ave Ste 113
San Jose, CA 951242600
Phone: 4156001020
Fax: 4156001005 3883 Airway Dr
Santa Rosa, CA 954031670
Phone: 4156001020
Fax: 4156001005 2340 Clay St Fl 2
San Francisco, CA 941151932
Phone: 4156001020
Fax: 4156001005
Education & affiliations
- Medical / professional school
- New York Medical College
- Graduation year
- 1998
- CMS specialties
- Gastroenterology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- California Pacific Medical Center- Van Ness Campus San Francisco, CA
- California Pacific Medical Ctr-Davies Campus Hosp San Francisco, CA
- Enloe Health Chico, CA
- Oroville Hospital Oroville, CA
- Sutter Medical Center, Sacramento Sacramento, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 15 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Services other than consulting | $39,306.75 |
| Consulting fee | $3,240.00 |
| Travel and lodging | $1,620.50 |
| Food and beverage | $1,522.04 |
Reporting companies
| Company | Amount |
|---|---|
| MADRIGAL PHARMACEUTICALS | $41,812.72 |
| MALLINCKRODT HOSPITAL PRODUCTS INC. | $2,994.93 |
| CIPLA USA INC. | $450.00 |
| GILEAD SCIENCES, INC. | $139.74 |
| SALIX PHARMACEUTICALS, A DIVISION OF BAUSCH HEALTH US, LLC | $118.84 |
| COOK MEDICAL LLC | $111.52 |
| IPSEN BIOPHARMACEUTICALS, INC | $61.54 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology · Internal Medicine (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Jul 21, 2006
- Record updated
- Aug 26, 2021
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
204F00000X
License reported: A71441 CA
207R00000X
License reported: A71441 CA
207RI0008X
License reported: A71441 CA
207RT0003X
License reported: A71441 CA
207RG0100X · Primary
License reported: A71441 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1100 Van Ness AveSan Francisco, CA 94109-6978
- Phone
- (415) 600-1000
- Fax
- (415) 558-7051
Mailing address
325 DISTEL CIRLOS ALTOS, CA 940221408
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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