Doctor profile · Federal record
Dr. Mazer Ally, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Oceanside, CA
- NPI 1902018666
- Accepts Medicare
- 20 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2205 Vista Way Ste 340
Oceanside, CA 920545661
(760) 704-5870
fax (760) 404-1821 - Mailing address
-
10790 Rancho Bernardo RD
San Diego, CA 921275705
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- October 13, 2021
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A146924
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902018666. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
919
Distinct HCPCS
10
Medicare allowed
$113,731
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 203 | 131 | $136 | |
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 | 163 | 158 | $5 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 107 | 104 | $259 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 98 | 95 | $115 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 98 | 98 | $175 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 79 | 76 | $88 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 56 | 42 | $123 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 39 | 38 | $179 | |
93005 |
Routine electrocardiogram (ecg) using at least 12 leads with tracing | 24 | 23 | $7 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 18 | 14 | $191 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 55. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$33,594
Transactions
76
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 43 | $32,458.83 | |
| Janssen Biotech, Inc. | 6 | $285.22 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $168.74 | |
| Janssen Scientific Affairs, LLC | 2 | $148.12 | |
| Ferring Pharmaceuticals Inc. | 1 | $117.61 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 3 | $98.67 | |
| PFIZER INC. | 6 | $96.92 | |
| Lilly USA, LLC | 3 | $96.60 | |
| GENZYME CORPORATION | 1 | $31.43 | |
| Braintree Laboratories, Inc. | 1 | $24.69 | |
| Celgene Corporation | 1 | $23.90 | |
| GlaxoSmithKline, LLC. | 1 | $23.80 | |
| EVOKE PHARMA, INC. | 1 | $19.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
813
Patients
394
Total drug cost
$66,698
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 333 | 134 | $7,208 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 142 | 138 | $10,317 |
| Omeprazole | Generic | 55 | 17 | $860 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 54 | 52 | $953 |
| Dicyclomine Hcl | Generic | 51 | 18 | $708 |
| Famotidine | Generic | 44 | 17 | $920 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 24 | 0 | $1,399 |
| Linzess (Linaclotide) | Brand | 24 | 0 | $24,064 |
| Mesalamine | Generic | 24 | 0 | $13,973 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 20 | 18 | $3,424 |
Hospital affiliations
Frequently asked questions
What is Dr. Mazer Ally's medical specialty?
Dr. Mazer Ally practices Gastroenterology Physician in Oceanside, CA.
Where does Dr. Mazer Ally practice?
Dr. Mazer Ally practices at 2205 Vista Way Ste 340, Oceanside, CA 920545661. Office phone: 7607045870.
What is Dr. Mazer Ally's NPI?
Dr. Mazer Ally's National Provider Identifier (NPI) is 1902018666, issued by NPPES.
Does Dr. Mazer Ally accept Medicare assignment?
Yes. Dr. Mazer Ally accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazer Ally commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); 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). Source: CMS Medicare Physician & Other Practitioners file.