Doctor profile · Federal record
Dr. Ernesto Zatarain-Rios, MD
Rheumatology Physician (CMS: Rheumatology) · Burlingame, CA
- NPI 1487720439
- Accepts Medicare
- 48 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1501 Trousdale Dr, 3Rd Floor
Burlingame, CA 940104506
(650) 652-8500 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- March 9, 2020
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #A46442
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487720439. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
695
Distinct HCPCS
10
Medicare allowed
$89,823
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 334 | 200 | $153 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 93 | 21 | $1 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 59 | 48 | $214 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 54 | 54 | $260 | |
20610 |
Aspiration and/or injection of fluid from large joint | 40 | 33 | $90 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 37 | 29 | $108 | |
J1030 |
Injection, methylprednisolone acetate, 40 mg | 34 | 26 | $8 | |
20600 |
Aspiration and/or injection of fluid from small joint | 16 | 12 | $59 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $198 | |
J1020 |
Injection, methylprednisolone acetate, 20 mg | 13 | 12 | $5 |
In context: peer comparison
Among 2 peers in Burlingame Rheumatology Physician, average services per provider: 73. This provider delivers 9.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,118
Patients
278
Total drug cost
$1,683,281
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Generic | 248 | 73 | $20,803 |
| Prednisone | Generic | 152 | 48 | $1,608 |
| Methotrexate (Methotrexate Sodium) | Brand | 136 | 40 | $7,614 |
| Humira(Cf) Pen (Adalimumab) | Brand | 122 | 16 | $1,332,364 |
| Alendronate Sodium | Generic | 117 | 39 | $1,907 |
| Gabapentin | Generic | 64 | 20 | $853 |
| Celecoxib | Generic | 42 | 14 | $3,398 |
| Folic Acid | Generic | 42 | 15 | $200 |
| Leflunomide | Generic | 42 | 13 | $3,137 |
| Rinvoq (Upadacitinib) | Brand | 39 | 0 | $304,628 |
Hospital affiliations
Frequently asked questions
What is Dr. Ernesto Zatarain-Rios's medical specialty?
Dr. Ernesto Zatarain-Rios practices Rheumatology Physician in Burlingame, CA.
Where does Dr. Ernesto Zatarain-Rios practice?
Dr. Ernesto Zatarain-Rios practices at 1501 Trousdale Dr, Burlingame, CA 940104506. Office phone: 6506528500.
What is Dr. Ernesto Zatarain-Rios's NPI?
Dr. Ernesto Zatarain-Rios's National Provider Identifier (NPI) is 1487720439, issued by NPPES.
Does Dr. Ernesto Zatarain-Rios accept Medicare assignment?
Yes. Dr. Ernesto Zatarain-Rios accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ernesto Zatarain-Rios commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.