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Edit this profileWhere to find Richard T. Frederick, M.D.
- San Francisco location main office
1100 Van Ness Ave, San Francisco, CA 94109 - Chico location
1601 Esplanade Ste 3, Chico, CA 95926 - Santa Rosa location
990 Sonoma Ave, Santa Rosa, CA 95404 - Eureka location
2367 Harrison Ave, Eureka, CA 95501 - Fresno location
1189 E Herndon Ave, Fresno, CA 93720
About Dr. Frederick
Richard T. Frederick, M.D. practices gastroenterology in San Francisco, CA. Richard is a 1998 graduate of New York Medical College. Richard is also listed as specializing in transplant surgery and internal medicine. According to Medicare claims data, Richard cared for 582 Medicare patients across 990 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1720009160.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (415) 600-1000
- Email not available
Practice Locations
1100 VAN NESS AVE
San Francisco, CA 94109
1601 Esplanade Ste 3
Chico, CA 95926
990 Sonoma Ave
Santa Rosa, CA 95404
2367 Harrison Ave
Eureka, CA 95501
1189 E Herndon Ave
Fresno, CA 93720
1401 Spanos Ct Ste 125
Modesto, CA 95355
101 Rowland Way Ste 220
Novato, CA 94945
3300 Webster St Ste 202
Oakland, CA 94609
795 El Camino Real
Palo Alto, CA 94301
1315 Alhambra Blvd Ste 210
Sacramento, CA 95816
1431 Noriega St
San Francisco, CA 94122
3880 S Bascom Ave Ste 113
San Jose, CA 95124
3883 Airway Dr
Santa Rosa, CA 95403
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
990 services · 582 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Measurement of liver stiffness | Treatment | 91200 |
29 | As often as other peers in Gastroenterology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
290 | More than most peers in Gastroenterology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
241 | More than most peers in Gastroenterology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
213 | More than most peers in Gastroenterology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
48 | More often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
39 | As often as other peers in Gastroenterology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
39 | More often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
37 | As often as other peers in Gastroenterology |
| Critical care, first 30-74 minutes | Office visit | 99291 |
25 | As often as other peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
16 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other gastroenterologists in San Francisco 8
Same specialty, same city.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Measurement of liver stiffness 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Richard T. Frederick?
Richard T. Frederick is a gastroenterologist in San Francisco, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Richard T. Frederick's address?
Richard T. Frederick is listed at 1100 Van Ness Ave, San Francisco, CA 94109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Richard T. Frederick?
The number on file is (415) 600-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Richard T. Frederick's NPI number?
Richard T. Frederick's National Provider Identifier is 1720009160. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Richard T. Frederick train?
Richard T. Frederick attended New York Medical College, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Richard T. Frederick been practicing?
Richard T. Frederick has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Richard T. Frederick perform?
According to Medicare billing data, Richard T. Frederick provides treatments such as measurement of liver stiffness, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Richard T. Frederick confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Richard T. Frederick. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.