Internal Medicine, Gastroenterology · Fullerton, CA
NPI
1437196730
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
1521 S Harbor Blvd
Fullerton, CA, 92832
Phone (714) 990-0911
Groups this clinician bills Medicare through
Medicare paid, 2024
$47K
461 services
Medicare patients, 2024
200
Average age 75
Drug cost, 2024
$643K
5,219 prescriptions
Company payments, 2025
$76.46
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Richard F McGuire was code 99214 (office e&m - established), 364 times for 173 patients. In total Richard F McGuire billed 461 services in 16 codes, and Medicare paid $47K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-07-14.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 364 | 173 | $101.34 | $37K |
| 99204 Office E&M - New | Office | 24 | 24 | $115.78 | $2,779 |
| 43239 Upper GI Endoscopy | Facility | 16 | 16 | $64.02 | $1,024 |
| 45385 Colonoscopy - Lesion Removal | Facility | 16 | 16 | $146.32 | $2,341 |
By year: 2022 $71K for 903 services; 2023 $57K for 596 services; 2024 $47K for 461 services.
Medicare prescription drug claims, 2024
In 2024, the drug Richard F McGuire prescribed most often to Medicare patients was Famotidine, with 317 prescriptions and refills. In total Richard F McGuire wrote 5,219 Medicare prescriptions that cost $643K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Famotidine Generic | 317 | 924 | 122 | $2,773 |
| Pantoprazole Sodium Generic | 256 | 712 | 108 | $4,767 |
| Atorvastatin Calcium Generic | 236 | 669 | 76 | $1,182 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 171 | 171 | 165 | $7,410 |
| Losartan Potassium Generic | 164 | 479 | 54 | $590 |
| Omeprazole Generic | 157 | 416 | 49 | $1,409 |
| Levothyroxine Sodium Generic | 153 | 445 | 43 | $3,210 |
| Amlodipine Besylate Generic | 143 | 419 | 46 | $193 |
| Lisinopril Generic | 133 | 380 | 45 | $694 |
| Metformin Hcl Generic | 107 | 308 | 37 | $450 |
| Alprazolam Generic | 98 | 116 | 17 | $783 |
| Lorazepam Generic | 97 | 99 | 22 | $291 |
| Rosuvastatin Calcium Generic | 91 | 265 | 31 | $393 |
| Gabapentin Generic | 84 | 195 | 25 | $921 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 74 | 74 | 17 | $1,400 |
Brand drugs: 535 claims; generic drugs: 4,647 claims; opioid claims: 181.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Richard F McGuire $76.46 ($76.46 in general payments such as food, travel and fees) from 2 companies. The largest payer was Exact Sciences Corporation with $58.03.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.