Doctor profile · Federal record
Dr. Kenneth Mahaffey, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Stanford, CA
- NPI 1659455707
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 37 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- April 23, 2024
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State licenses (2)
- California #G129600 · North Carolina #96-00991
- Medicaid
- NC #8953735
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659455707. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
241
Distinct HCPCS
7
Medicare allowed
$14,987
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 109 | 98 | $9 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 27 | 22 | $214 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 18 | $91 | |
93248 |
Heart rhythm review and interpretation of continous external ekg over 8-15 days | 26 | 25 | $30 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 22 | 19 | $56 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 15 | 13 | $153 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 15 | 15 | $94 |
In context: peer comparison
Among 33 peers in this city , average services per provider: 162. This provider delivers 1.5× the peer median.Open Payments
Industry payments received
All-time total
$76,632
Transactions
50
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | 10 | $32,995.00 | |
| Janssen Research & Development, LLC | 30 | $28,038.25 | |
| Eli Lilly and Company | 2 | $8,200.00 | |
| ModernaTX, Inc. | 3 | $4,500.00 | |
| Novo Nordisk AS | 5 | $2,898.38 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
130
Patients
12
Total drug cost
$9,075
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 37 | 12 | $706 |
| Losartan Potassium | Generic | 26 | 0 | $675 |
| Rosuvastatin Calcium | Generic | 17 | 0 | $105 |
| Ezetimibe | Generic | 16 | 0 | $952 |
| Metoprolol Succinate | Generic | 12 | 0 | $595 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 11 | 0 | $260 |
| Praluent Pen (Alirocumab) | Brand | 11 | 0 | $5,781 |
Hospital affiliations
Frequently asked questions
What is Dr. Kenneth Mahaffey's medical specialty?
Dr. Kenneth Mahaffey practices Cardiovascular Disease Physician in Stanford, CA.
Where does Dr. Kenneth Mahaffey practice?
Dr. Kenneth Mahaffey practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Kenneth Mahaffey's NPI?
Dr. Kenneth Mahaffey's National Provider Identifier (NPI) is 1659455707, issued by NPPES.
Does Dr. Kenneth Mahaffey accept Medicare assignment?
Yes. Dr. Kenneth Mahaffey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenneth Mahaffey commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.