Doctor profile · Federal record
Dr. Kristen Willison, MD
Family Medicine Physician · San Mateo, CA
- NPI 1306831599
- 21 yrs on file
- Female
- No sanctions
Practice & contact
- Primary practice
-
50 S San Mateo Dr, 230
San Mateo, CA 944013857
(650) 348-0454
fax (650) 348-7923
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G072317
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306831599. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
720
Distinct HCPCS
10
Medicare allowed
$89,488
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 339 | 152 | $138 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 127 | 127 | $157 | |
99497 |
Advance care planning, first 30 minutes | 108 | 104 | $95 | |
G0008 |
Administration of influenza virus vaccine | 28 | 28 | $37 | |
90662 |
Influenza vaccine split virus, preservative free | 26 | 26 | $72 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 23 | 22 | $214 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 20 | 20 | $18 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 19 | 19 | $96 | |
90732 |
Pneumococcal vaccine, 23-valent | 15 | 15 | $131 | |
G0009 |
Administration of pneumococcal vaccine | 15 | 15 | $37 |
In context: peer comparison
Among 10 peers in San Mateo Family Medicine Physician, average services per provider: 58. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$600
Transactions
27
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 6 | $144.90 | |
| Merck Sharp & Dohme LLC | 5 | $114.23 | |
| Lilly USA, LLC | 5 | $91.46 | |
| Pfizer INC. | 4 | $84.28 | |
| GlaxoSmithKline, LLC. | 2 | $52.97 | |
| Amgen INC. | 2 | $44.52 | |
| Astellas Pharma US INC | 1 | $25.50 | |
| Novo Nordisk INC | 1 | $23.90 | |
| Indivior INC. | 1 | $17.83 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,965
Patients
546
Total drug cost
$26,411
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 327 | 82 | $5,436 |
| Atorvastatin Calcium | Generic | 263 | 84 | $3,279 |
| Amlodipine Besylate | Generic | 210 | 66 | $1,903 |
| Losartan Potassium | Generic | 171 | 46 | $3,068 |
| Simvastatin | Generic | 147 | 46 | $1,671 |
| Lisinopril | Generic | 143 | 44 | $1,194 |
| Metoprolol Succinate | Generic | 114 | 34 | $2,411 |
| Gabapentin | Generic | 93 | 26 | $1,025 |
| Hydrochlorothiazide | Generic | 91 | 28 | $647 |
| Sertraline Hcl | Generic | 84 | 18 | $972 |
Frequently asked questions
What is Dr. Kristen Willison's medical specialty?
Dr. Kristen Willison practices Family Medicine Physician in San Mateo, CA.
Where does Dr. Kristen Willison practice?
Dr. Kristen Willison practices at 50 S San Mateo Dr, San Mateo, CA 944013857. Office phone: 6503480454.
What is Dr. Kristen Willison's NPI?
Dr. Kristen Willison's National Provider Identifier (NPI) is 1306831599, issued by NPPES.
What procedures does Dr. Kristen Willison commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.