Doctor profile · Federal record
Dr. Frank Mayer, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · La Jolla, CA
- NPI 1598760589
- Accepts Medicare
- 48 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9850 Genesee Ave, Ste 930
La Jolla, CA 920371229
(858) 457-3737
fax (858) 550-9047
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- June 19, 2009
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G40234
- Medicaid
- CA #00G402340
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598760589. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,038
Distinct HCPCS
10
Medicare allowed
$129,654
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 280 | 191 | $97 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 164 | 164 | $120 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 103 | 84 | $97 | |
99441 |
Telephone medical discussion with physician, 5-10 minutes | 76 | 68 | $61 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 74 | 74 | $110 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 73 | 73 | $260 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 69 | 67 | $137 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 55 | 55 | $177 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 36 | 36 | $206 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 23 | 23 | $188 |
In context: peer comparison
Among 9 peers in La Jolla Gastroenterology Physician, average services per provider: 57. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
337
Patients
140
Total drug cost
$52,428
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 108 | 106 | $8,692 |
| Pantoprazole Sodium | Generic | 55 | 12 | $710 |
| Dicyclomine Hcl | Generic | 20 | 0 | $352 |
| Colestipol Hcl | Generic | 15 | 0 | $1,949 |
| Magnesium Sulfate | Generic | 15 | 0 | $140 |
| Esomeprazole Magnesium | Generic | 14 | 0 | $2,015 |
| Rabeprazole Sodium | Generic | 14 | 0 | $198 |
| Omeprazole | Generic | 13 | 0 | $156 |
| Budesonide Ec (Budesonide) | Brand | 12 | 0 | $3,422 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 12 | 0 | $175 |
Hospital affiliations
Frequently asked questions
What is Dr. Frank Mayer's medical specialty?
Dr. Frank Mayer practices Gastroenterology Physician in La Jolla, CA.
Where does Dr. Frank Mayer practice?
Dr. Frank Mayer practices at 9850 Genesee Ave, La Jolla, CA 920371229. Office phone: 8584573737.
What is Dr. Frank Mayer's NPI?
Dr. Frank Mayer's National Provider Identifier (NPI) is 1598760589, issued by NPPES.
Does Dr. Frank Mayer accept Medicare assignment?
Yes. Dr. Frank Mayer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Frank Mayer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.