Doctor profile · Federal record
Dr. Kenneth Kelsen, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Fremont, CA
- NPI 1538292321
- Accepts Medicare
- 56 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
734 Mowry Ave
Fremont, CA 94536
(510) 793-3033
fax (510) 793-4952
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- June 1, 2018
- Year of graduation
- 1970 — 56 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G250930
- Medicaid
- CA #1455018
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538292321. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
137
Distinct HCPCS
2
Medicare allowed
$14,659
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 115 | 41 | $99 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 22 | 17 | $151 |
In context: peer comparison
Among 9 peers in Fremont Gastroenterology Physician, average services per provider: 79. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$1,135
Transactions
28
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 15 | $549.98 | |
| Phathom Pharmaceuticals, INC. | 2 | $119.75 | |
| Madrigal Pharmaceuticals | 1 | $112.15 | |
| Lilly USA, LLC | 1 | $101.15 | |
| Pentax of America, INC. | 1 | $54.97 | |
| Gilead Sciences, INC. | 2 | $49.97 | |
| Qol Medical, LLC | 2 | $45.87 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $40.77 | |
| Pfizer INC. | 1 | $35.33 | |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | 1 | $25.54 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
127
Patients
0
Total drug cost
$1,765
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lisinopril | Generic | 25 | 0 | $218 |
| Levothyroxine Sodium | Generic | 24 | 0 | $323 |
| Atorvastatin Calcium | Generic | 17 | 0 | $244 |
| Famotidine | Generic | 17 | 0 | $324 |
| Simvastatin | Generic | 17 | 0 | $86 |
| Atenolol | Generic | 14 | 0 | $93 |
| Omeprazole | Generic | 13 | 0 | $477 |
Frequently asked questions
What is Dr. Kenneth Kelsen's medical specialty?
Dr. Kenneth Kelsen practices Gastroenterology Physician in Fremont, CA.
Where does Dr. Kenneth Kelsen practice?
Dr. Kenneth Kelsen practices at 734 Mowry Ave, Fremont, CA 94536. Office phone: 5107933033.
What is Dr. Kenneth Kelsen's NPI?
Dr. Kenneth Kelsen's National Provider Identifier (NPI) is 1538292321, issued by NPPES.
Does Dr. Kenneth Kelsen accept Medicare assignment?
Yes. Dr. Kenneth Kelsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenneth Kelsen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.