Doctor profile · Federal record
Dr. Tammy Lo, MMS, PA-C
Physician Assistant · Fullerton, CA
- NPI 1891269502
- Accepts Medicare
- 8 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2141 N Harbor Blvd Ste 25000
Fullerton, CA 928353830
(714) 626-8650
fax (714) 626-8654
Credentials & registration
- NPI registered
- January 2019 — 7 yrs on file
- Profile last updated
- November 5, 2021
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #56421
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891269502. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
570
Distinct HCPCS
7
Medicare allowed
$56,885
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 374 | 257 | $120 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 68 | 63 | $14 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 47 | 45 | $85 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 30 | 23 | $120 | |
36415 |
Insertion of needle into vein for collection of blood sample | 19 | 17 | $8 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 16 | 15 | $85 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 16 | 16 | $122 |
In context: peer comparison
Among 21 peers in Fullerton Physician Assistant, average services per provider: 68. This provider delivers 8.4× the peer median.Open Payments
Industry payments received
All-time total
$45
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 1 | $23.77 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $21.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
841
Patients
414
Total drug cost
$14,032
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 99 | 45 | $1,292 |
| Losartan Potassium | Generic | 88 | 36 | $1,598 |
| Amlodipine Besylate | Generic | 84 | 39 | $1,080 |
| Metoprolol Succinate | Generic | 80 | 28 | $2,199 |
| Atorvastatin Calcium | Generic | 59 | 28 | $994 |
| Omeprazole | Generic | 56 | 28 | $1,032 |
| Fluticasone Propionate | Generic | 52 | 29 | $640 |
| Lisinopril | Generic | 52 | 23 | $764 |
| Levothyroxine Sodium | Generic | 49 | 22 | $1,011 |
| Metformin Hcl | Generic | 39 | 21 | $444 |
Frequently asked questions
What is Dr. Tammy Lo's medical specialty?
Dr. Tammy Lo practices Physician Assistant in Fullerton, CA.
Where does Dr. Tammy Lo practice?
Dr. Tammy Lo practices at 2141 N Harbor Blvd Ste 25000, Fullerton, CA 928353830. Office phone: 7146268650.
What is Dr. Tammy Lo's NPI?
Dr. Tammy Lo's National Provider Identifier (NPI) is 1891269502, issued by NPPES.
Does Dr. Tammy Lo accept Medicare assignment?
Yes. Dr. Tammy Lo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy Lo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.