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Edit this profileAt a glance
- 2929 Health Center Dr, San Diego, CA 92123
About Dr. Keller
Darren B. Keller, M.D. is a healthcare provider in San Diego, CA specializing in gastroenterology. Darren trained at Boston University School of Medicine, graduating in 2001. Darren is also listed as specializing in internal medicine. According to Medicare claims data, Darren cared for 420 Medicare patients across 870 services. The services billed most often include injection, midazolam hydrochloride, per 1 mg, use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes, and moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit. This provider record is associated with NPI 1013988922.
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
- (858) 939-6531
- Email not available
Practice Locations
2929 HEALTH CENTER DR
San Diego, CA 92123
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
870 services · 420 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
35 | Less often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
16 | Less often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
11 | Less often than most peers in Gastroenterology |
| Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | Treatment | 99153 |
103 | More often than most peers in Gastroenterology |
| Injection, midazolam hydrochloride, per 1 mg | Drug given | J2250 |
471 | More often than most peers in Gastroenterology |
| Injection, fentanyl citrate, 0.1 mg | Drug given | J3010 |
68 | More often than most peers in Gastroenterology |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
76 | As often as other 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 |
59 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
20 | Less often than most peers in Gastroenterology |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
11 | 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 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 30 related providers in 4 groups
Other gastroenterologists in San Diego 7
Same specialty, same city.
Trained at Boston University School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Boston University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Darren B. Keller specialize in?
Darren B. Keller is a gastroenterologist in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Darren B. Keller located?
Darren B. Keller is listed at 2929 Health Center Dr, San Diego, CA 92123. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Darren B. Keller's phone number?
The number on file is (858) 939-6531. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Darren B. Keller's NPI number?
Darren B. Keller's National Provider Identifier is 1013988922. 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 Darren B. Keller train?
Darren B. Keller attended Boston University School of Medicine, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How long has Darren B. Keller been practicing?
Darren B. Keller has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What does Darren B. Keller do most often?
According to Medicare billing data, Darren B. Keller performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; provides treatments such as use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Darren B. Keller confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Darren B. Keller. If this is you, claiming it is free.
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