Doctor profile · Federal record
Dr. Peter Simpson, MD, MPH
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Mountain View, CA
- NPI 1043499478
- Accepts Medicare
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
701 E El Camino Real
Mountain View, CA 940402833
(650) 934-7575 - Mailing address
-
2350 W El Camino Real, 2Nd Floor
Mountain View, CA 940406201
Credentials & registration
- NPI registered
- November 2007 — 19 yrs on file
- Profile last updated
- January 13, 2012
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A71224
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043499478. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
563
Distinct HCPCS
10
Medicare allowed
$76,120
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0500 |
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 monito | 147 | 144 | $6 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 122 | 119 | $286 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 63 | $156 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 56 | 56 | $71 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 30 | 27 | $216 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 28 | 28 | $100 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 25 | 25 | $201 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 22 | 20 | $111 | |
45381 |
Injection beneath lining of large bowel using a flexible endoscope | 17 | 16 | $19 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 17 | 17 | $205 |
In context: peer comparison
Among 7 peers in Mountain View Gastroenterology Physician, average services per provider: 75. This provider delivers 7.5× the peer median.Open Payments
Industry payments received
All-time total
$12
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Micro-Tech Endoscopy USA, INC. | 1 | $11.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
335
Patients
250
Total drug cost
$25,297
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 111 | 109 | $2,644 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 90 | 87 | $6,993 |
| Omeprazole | Generic | 54 | 25 | $1,172 |
| Pantoprazole Sodium | Generic | 48 | 18 | $1,062 |
| Mesalamine | Generic | 21 | 11 | $13,077 |
| Sulfasalazine | Generic | 11 | 0 | $350 |
Frequently asked questions
What is Dr. Peter Simpson's medical specialty?
Dr. Peter Simpson practices Gastroenterology Physician in Mountain View, CA.
Where does Dr. Peter Simpson practice?
Dr. Peter Simpson practices at 701 E El Camino Real, Mountain View, CA 940402833. Office phone: 6509347575.
What is Dr. Peter Simpson's NPI?
Dr. Peter Simpson's National Provider Identifier (NPI) is 1043499478, issued by NPPES.
Does Dr. Peter Simpson accept Medicare assignment?
Yes. Dr. Peter Simpson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Simpson commonly perform?
Top Medicare-reported procedures in 2023: 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 monito (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.