Doctor profile · Federal record
Dr. James Florencio Tamesis, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Roseville, CA
- NPI 1568819050
- Accepts Medicare
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2050 Blue Oaks Blvd
Roseville, CA 957476506
(916) 910-2400
fax (916) 910-2355 - Mailing address
-
2111 W Snead St
La Habra, CA 906319509
Credentials & registration
- NPI registered
- May 2016 — 10 yrs on file
- Profile last updated
- August 6, 2021
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A172259
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568819050. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
485
Distinct HCPCS
6
Medicare allowed
$55,776
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 212 | 117 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 113 | 81 | $96 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 99 | 99 | $138 | |
G0008 |
Administration of influenza virus vaccine | 25 | 25 | $33 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 23 | 23 | $76 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 13 | 13 | $15 |
In context: peer comparison
Among 29 peers in Roseville Internal Medicine Physician, average services per provider: 151. This provider delivers 3.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,398
Patients
768
Total drug cost
$45,949
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 313 | 102 | $5,607 |
| Levothyroxine Sodium | Generic | 250 | 74 | $5,790 |
| Losartan Potassium | Generic | 225 | 76 | $4,477 |
| Amlodipine Besylate | Generic | 201 | 66 | $2,122 |
| Metformin Hcl | Generic | 179 | 54 | $2,677 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 171 | 34 | $4,395 |
| Gabapentin | Generic | 169 | 55 | $4,799 |
| Lisinopril | Generic | 162 | 56 | $1,858 |
| Metoprolol Succinate | Generic | 131 | 45 | $3,036 |
| Tamsulosin Hcl | Generic | 119 | 38 | $2,958 |
Hospital affiliations
Frequently asked questions
What is Dr. James Florencio Tamesis's medical specialty?
Dr. James Florencio Tamesis practices Internal Medicine Physician in Roseville, CA.
Where does Dr. James Florencio Tamesis practice?
Dr. James Florencio Tamesis practices at 2050 Blue Oaks Blvd, Roseville, CA 957476506. Office phone: 9169102400.
What is Dr. James Florencio Tamesis's NPI?
Dr. James Florencio Tamesis's National Provider Identifier (NPI) is 1568819050, issued by NPPES.
Does Dr. James Florencio Tamesis accept Medicare assignment?
Yes. Dr. James Florencio Tamesis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Florencio Tamesis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.