Doctor profile · Federal record
Dr. Thomas Erskine, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Vacaville, CA
- NPI 1194732339
- Accepts Medicare
- 30 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1010 Nut Tree RD, Ste 100
Vacaville, CA 956874172
(707) 624-7979 - Mailing address
-
3390 Crystal CT, Ste 100
Napa, CA 945583148
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 21, 2017
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A63845
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194732339. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
692
Distinct HCPCS
4
Medicare allowed
$63,174
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 378 | 223 | $90 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 176 | 139 | $61 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 120 | 86 | $133 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $124 |
In context: peer comparison
Among 7 peers in Vacaville Internal Medicine Physician, average services per provider: 91. This provider delivers 7.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,428
Patients
720
Total drug cost
$148,784
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 446 | 128 | $6,058 |
| Levothyroxine Sodium | Generic | 285 | 79 | $5,871 |
| Amlodipine Besylate | Generic | 249 | 79 | $1,733 |
| Omeprazole | Generic | 201 | 63 | $3,101 |
| Lisinopril | Generic | 149 | 48 | $904 |
| Rosuvastatin Calcium | Generic | 139 | 45 | $6,201 |
| Gabapentin | Generic | 130 | 37 | $2,261 |
| Losartan Potassium | Generic | 127 | 38 | $1,909 |
| Metoprolol Succinate | Generic | 120 | 39 | $3,577 |
| Eliquis (Apixaban) | Brand | 105 | 26 | $110,281 |
Hospital affiliations
Frequently asked questions
What is Dr. Thomas Erskine's medical specialty?
Dr. Thomas Erskine practices Internal Medicine Physician in Vacaville, CA.
Where does Dr. Thomas Erskine practice?
Dr. Thomas Erskine practices at 1010 Nut Tree RD, Vacaville, CA 956874172. Office phone: 7076247979.
What is Dr. Thomas Erskine's NPI?
Dr. Thomas Erskine's National Provider Identifier (NPI) is 1194732339, issued by NPPES.
Does Dr. Thomas Erskine accept Medicare assignment?
Yes. Dr. Thomas Erskine accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Erskine 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); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.