Physician Profile
Grant E. Barber, MD
Unclaimed ProfileAbout Dr. Barber
Grant E. Barber, MD is a healthcare provider in Stanford, CA specializing in gastroenterology. Grant trained at Harvard Medical School, graduating in 2016. Grant is also listed as specializing in internal medicine. Medicare claims data shows Grant provided 235 services to 192 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
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
- Acute pancreatitis
- Gallstones
- Pancreatic cysts
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon cancer
- Colon polyps
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic diarrhea
- Fecal incontinence
- Small intestinal bacterial overgrowth
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Bowel & Colon
- Diverticulitis
Digestive Symptoms
- Constipation
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Lower endoscopy
- Colon polyp removal
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Upper endoscopy
- Endoscopic submucosal dissection
- Esophageal dilation
Capsule and physiology testing
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
Diagnostic Testing
- 24-Hour Acid Reflux Test
- EUS-Guided Fine Needle Biopsy
- H. Pylori Breath Test
- SIBO Breath Test
Liver procedures
- Esophageal variceal banding
- Liver elastography
- Paracentesis
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
235 services · 192 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
23 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
13 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
12 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
49 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
43 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
27 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
25 |
| 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 |
15 |
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.
Related specialists at this location 4
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.
Other gastroenterologists in Stanford 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Harvard Medical School 7
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Barber specialize in?
Dr. Barber is a gastroenterologist in Stanford, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Barber located?
Dr. Barber is listed at 300 Pasteur Dr, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Barber's phone number?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Barber?
Dr. Barber's National Provider Identifier is 1528422847. 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 Dr. Barber go to medical school?
Dr. Barber attended Harvard Medical School, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Barber have?
Dr. Barber has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Barber do most often?
According to Medicare billing data, Dr. Barber performs procedures including biopsy of large bowel using a flexible endoscope, 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, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Barber's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Barber. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.