Doctor profile · Federal record
Dr. Karen Shannon, MD
Family Medicine Physician (CMS: Family Practice) · Loma Linda, CA
- NPI 1669685079
- Accepts Medicare
- MIPS 76.4 / 100 · 2023
- 39 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
25455 Barton RD Ste 206A
Loma Linda, CA 923543130
(909) 558-6600
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- October 20, 2014
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G89216
- Medicaid
- NH #30201593
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669685079. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
380
Distinct HCPCS
7
Medicare allowed
$44,071
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 211 | 126 | $132 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 66 | 56 | $93 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 46 | 46 | $133 | |
G0008 |
Administration of influenza virus vaccine | 19 | 18 | $32 | |
90662 |
Influenza vaccine split virus, preservative free | 15 | 14 | $71 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 12 | 11 | $171 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 11 | 11 | $14 |
In context: peer comparison
Among 16 peers in this city , average services per provider: 82. This provider delivers 4.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,155
Patients
394
Total drug cost
$21,118
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 174 | 66 | $2,606 |
| Levothyroxine Sodium | Generic | 165 | 46 | $3,422 |
| Omeprazole | Generic | 112 | 35 | $2,698 |
| Amlodipine Besylate | Generic | 91 | 33 | $789 |
| Hydrochlorothiazide | Generic | 85 | 32 | $691 |
| Lisinopril | Generic | 79 | 28 | $788 |
| Losartan Potassium | Generic | 78 | 32 | $1,372 |
| Gabapentin | Generic | 70 | 25 | $1,915 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 65 | 26 | $1,744 |
| Metformin Hcl | Generic | 54 | 17 | $1,022 |
Frequently asked questions
What is Dr. Karen Shannon's medical specialty?
Dr. Karen Shannon practices Family Medicine Physician in Loma Linda, CA.
Where does Dr. Karen Shannon practice?
Dr. Karen Shannon practices at 25455 Barton RD Ste 206A, Loma Linda, CA 923543130. Office phone: 9095586600.
What is Dr. Karen Shannon's NPI?
Dr. Karen Shannon's National Provider Identifier (NPI) is 1669685079, issued by NPPES.
Does Dr. Karen Shannon accept Medicare assignment?
Yes. Dr. Karen Shannon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Shannon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.