Doctor profile · Federal record
Dr. Melissa Loja, MD
Vascular Surgery Physician (CMS: Vascular Surgery) · Fairfield, CA
- NPI 1578826749
- Accepts Medicare
- 14 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 6 locations .
- Primary practice
-
1860 Pennsylvania Ave Ste 120
Fairfield, CA 945333550
(707) 646-4400 - Additional location
-
1000 Nut Tree RD
Vacaville, CA 956874100
(707) 624-7000 - Additional location
-
1200 B Gale Wilson Blvd
Fairfield, CA 945333552
(707) 646-5000 - Additional location
-
1601 Ygnacio Valley RD
Walnut Creek, CA 945983122
(925) 939-3000 - Additional location
-
2540 East St
Concord, CA 945201906
(925) 682-8200 - Additional location
-
6001 Norris Canyon RD
San Ramon, CA 945835400
(925) 275-9200
Show 3 more locations
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- June 24, 2021
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 2086S0129X — NUCC code
- State license (1)
- California #A127991
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578826749. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,419
Distinct HCPCS
10
Medicare allowed
$223,736
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93922 |
Ultrasound study of arm and leg arteries | 171 | 119 | $83 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 166 | 124 | $146 | |
93880 |
Ultrasound of both sides of head and neck blood flow | 149 | 113 | $234 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 117 | 94 | $103 | |
99441 |
Telephone medical discussion with physician, 5-10 minutes | 106 | 92 | $41 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 104 | 104 | $186 | |
93990 |
Ultrasound of hemodialysis access | 103 | 64 | $158 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 75 | 49 | $13 | |
93925 |
Ultrasound of leg arteries or artery grafts | 57 | 44 | $296 | |
93970 |
Ultrasound study of arm or leg veins with compression and maneuvers | 44 | 43 | $235 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 57. This provider delivers 25× the peer median.Open Payments
Industry payments received
All-time total
$41,526
Transactions
41
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ShockWave Medical, Inc | 18 | $37,407.56 | |
| Abbott Laboratories | 8 | $3,691.10 | |
| Inari Medical, Inc. | 2 | $144.95 | |
| Philips North America LLC | 5 | $106.13 | |
| BIOTISSUE HOLDINGS INC. | 5 | $98.33 | |
| Reflow Medical Inc | 1 | $29.87 | |
| Terumo Medical Corporation | 1 | $28.99 | |
| Bayer Healthcare Pharmaceuticals Inc. | 1 | $19.25 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
133
Patients
29
Total drug cost
$24,022
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 63 | 18 | $782 |
| Atorvastatin Calcium | Generic | 30 | 11 | $1,156 |
| Eliquis (Apixaban) | Brand | 28 | 0 | $21,944 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 12 | 0 | $140 |
Hospital affiliations
Frequently asked questions
What is Dr. Melissa Loja's medical specialty?
Dr. Melissa Loja practices Vascular Surgery Physician in Fairfield, CA.
Where does Dr. Melissa Loja practice?
Dr. Melissa Loja practices at 1860 Pennsylvania Ave Ste 120, Fairfield, CA 945333550. Office phone: 7076464400.
What is Dr. Melissa Loja's NPI?
Dr. Melissa Loja's National Provider Identifier (NPI) is 1578826749, issued by NPPES.
Does Dr. Melissa Loja accept Medicare assignment?
Yes. Dr. Melissa Loja accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Loja commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound study of arm and leg arteries (HCPCS 93922); Established patient office or other outpatient visit (HCPCS 99214); Ultrasound of both sides of head and neck blood flow (HCPCS 93880). Source: CMS Medicare Physician & Other Practitioners file.