Doctor profile · Federal record
Dr. Fred Bayon, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Vallejo, CA
- NPI 1225031362
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
155 Glen Cove Marina RD E, Ste 100
Vallejo, CA 945917284
(707) 558-8699
fax (707) 558-1864
Credentials & registration
- NPI registered
- May 2005 — 21 yrs on file
- Profile last updated
- December 30, 2025
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G69611
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225031362. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,129
Distinct HCPCS
10
Medicare allowed
$122,574
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 323 | 156 | $142 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 238 | 133 | $71 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 233 | 114 | $98 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 114 | 114 | $147 | |
G0008 |
Administration of influenza virus vaccine | 47 | 45 | $35 | |
90662 |
Influenza vaccine split virus, preservative free | 38 | 36 | $71 | |
G0181 |
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow | 28 | 22 | $116 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 26 | 26 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 26 | 26 | $35 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 25 | 22 | $60 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 138. This provider delivers 8.2× the peer median.Open Payments
Industry payments received
All-time total
$2,297
Transactions
107
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 15 | $389.46 | |
| ABBVIE INC. | 22 | $368.44 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 9 | $272.45 | |
| Novo Nordisk Inc | 20 | $270.95 | |
| GlaxoSmithKline, LLC. | 8 | $214.84 | |
| PFIZER INC. | 13 | $213.73 | |
| AstraZeneca Pharmaceuticals LP | 5 | $113.89 | |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 4 | $88.95 | |
| Almatica Pharma LLC | 3 | $79.34 | |
| Amneal Pharmaceuticals LLC | 2 | $39.39 | |
| Lundbeck LLC | 2 | $37.02 | |
| Merck Sharp & Dohme LLC | 1 | $34.52 | |
| VERTEX PHARMACEUTICALS INCORPORATED | 1 | $31.20 | |
| Alkermes, Inc. | 1 | $28.65 | |
| Exact Sciences Corporation | 1 | $26.55 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,598
Patients
423
Total drug cost
$18,869
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 357 | 94 | $3,393 |
| Amlodipine Besylate | Generic | 198 | 52 | $1,162 |
| Olmesartan Medoxomil | Generic | 181 | 33 | $3,162 |
| Levothyroxine Sodium | Generic | 119 | 26 | $1,407 |
| Lisinopril | Generic | 101 | 27 | $639 |
| Metformin Hcl | Generic | 84 | 22 | $495 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 79 | 22 | $1,856 |
| Fluticasone Propionate | Generic | 76 | 29 | $1,192 |
| Pantoprazole Sodium | Generic | 65 | 21 | $626 |
| Lorazepam | Generic | 59 | 14 | $300 |
Hospital affiliations
Frequently asked questions
What is Dr. Fred Bayon's medical specialty?
Dr. Fred Bayon practices Internal Medicine Physician in Vallejo, CA.
Where does Dr. Fred Bayon practice?
Dr. Fred Bayon practices at 155 Glen Cove Marina RD E, Vallejo, CA 945917284. Office phone: 7075588699.
What is Dr. Fred Bayon's NPI?
Dr. Fred Bayon's National Provider Identifier (NPI) is 1225031362, issued by NPPES.
Does Dr. Fred Bayon accept Medicare assignment?
Yes. Dr. Fred Bayon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Fred Bayon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.