Doctor profile · Federal record
Dr. Richard Zelner
Gastroenterology Physician · Fountain Valley, CA
- NPI 1235274259
- MIPS 75.3 / 100 · 2023
- 19 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18035 Brookhurst St., Ste. 2100
Fountain Valley, CA 92708
(657) 241-9090
fax (714) 665-4603
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- January 11, 2023
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G50987
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1235274259. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
339
Distinct HCPCS
9
Medicare allowed
$35,083
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 141 | 78 | $119 | |
36415 |
Insertion of needle into vein for collection of blood sample | 39 | 25 | $6 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 36 | 35 | $82 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 30 | 30 | $84 | |
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 | 23 | 23 | $6 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 21 | 21 | $255 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $160 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 17 | 17 | $99 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 14 | 12 | $185 |
In context: peer comparison
Among 3 peers in Fountain Valley Gastroenterology Physician, average services per provider: 45. This provider delivers 7.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
442
Patients
163
Total drug cost
$39,338
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 241 | 74 | $4,930 |
| Plenvu (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 66 | 65 | $9,298 |
| Pantoprazole Sodium | Generic | 34 | 12 | $585 |
| Mesalamine ER (Mesalamine) | Brand | 24 | 0 | $14,945 |
| Omeprazole | Generic | 24 | 0 | $314 |
| Sucralfate | Generic | 23 | 12 | $1,138 |
| Balsalazide Disodium | Generic | 18 | 0 | $6,428 |
| Entecavir | Generic | 12 | 0 | $1,701 |
Frequently asked questions
What is Dr. Richard Zelner's medical specialty?
Dr. Richard Zelner practices Gastroenterology Physician in Fountain Valley, CA.
Where does Dr. Richard Zelner practice?
Dr. Richard Zelner practices at 18035 Brookhurst St., Ste. 2100, Fountain Valley, CA 92708. Office phone: 6572419090.
What is Dr. Richard Zelner's NPI?
Dr. Richard Zelner's National Provider Identifier (NPI) is 1235274259, issued by NPPES.
What procedures does Dr. Richard Zelner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.