Doctor profile · Federal record
Dr. Larissa Chartrand, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Fairfield, CA
- NPI 1851715627
- Accepts Medicare
- 15 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
4520 Business Center Drive, 200
Fairfield, CA 94534
(707) 646-5500 - Mailing address
-
4500 Business Center Dr
Fairfield, CA 945346888
Credentials & registration
- NPI registered
- February 2014 — 12 yrs on file
- Profile last updated
- July 7, 2025
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Florida #ME 120869
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851715627. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
568
Distinct HCPCS
10
Medicare allowed
$76,324
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 358 | 172 | $145 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 38 | 38 | $187 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 32 | 29 | $103 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 29 | 29 | $148 | |
96372 |
Injection of drug or substance under skin or into muscle | 24 | 12 | $17 | |
99421 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes | 20 | 19 | $17 | |
G0008 |
Administration of influenza virus vaccine | 15 | 15 | $34 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 14 | 12 | $203 | |
99496 |
Transitional care management services for problem of high complexity | 14 | 13 | $319 | |
90662 |
Influenza vaccine split virus, preservative free | 13 | 13 | $72 |
In context: peer comparison
Among 13 peers in Fairfield Internal Medicine Physician, average services per provider: 272. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$98
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 1 | $98.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,120
Patients
340
Total drug cost
$17,778
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 160 | 55 | $2,421 |
| Amlodipine Besylate | Generic | 143 | 41 | $1,857 |
| Metformin Hcl | Generic | 123 | 34 | $1,321 |
| Lisinopril | Generic | 111 | 36 | $1,160 |
| Levothyroxine Sodium | Generic | 98 | 30 | $2,316 |
| Gabapentin | Generic | 76 | 28 | $2,709 |
| Losartan Potassium | Generic | 70 | 24 | $967 |
| Omeprazole | Generic | 65 | 29 | $995 |
| Alprazolam | Generic | 50 | 0 | $299 |
| Pantoprazole Sodium | Generic | 50 | 24 | $1,307 |
Hospital affiliations
Frequently asked questions
What is Dr. Larissa Chartrand's medical specialty?
Dr. Larissa Chartrand practices Internal Medicine Physician in Fairfield, CA.
Where does Dr. Larissa Chartrand practice?
Dr. Larissa Chartrand practices at 4520 Business Center Drive, Fairfield, CA 94534. Office phone: 7076465500.
What is Dr. Larissa Chartrand's NPI?
Dr. Larissa Chartrand's National Provider Identifier (NPI) is 1851715627, issued by NPPES.
Does Dr. Larissa Chartrand accept Medicare assignment?
Yes. Dr. Larissa Chartrand accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Larissa Chartrand commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.