Physician Profile
Karen J. Friday, MD
Unclaimed ProfileAbout Dr. Friday
Based in Stanford, CA, Karen J. Friday, MD is listed in the NPI registry under cardiovascular disease. Karen graduated from Clvlnd Clinic Lerner College of Med of Case Wstn RSV University in 1976. Karen is also listed as specializing in internal medicine. According to Medicare claims data, Karen cared for 8,314 Medicare patients across 13,887 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 723-4000
- Email not available
Practice Locations
300 PASTEUR DR
Stanford, CA 94305
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- AFib
- Congestive heart failure
- Heart attack
- Heart disease
- High blood pressure
- High cholesterol
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
- Poor Circulation and Swollen Legs
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
13,887 services · 8,314 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
13,116 | More than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
544 | More often than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
179 | More than most peers in Cardiovascular Disease |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
48 | More often than most peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other cardiologists in Stanford 7
Same specialty, same city.
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Other providers in the same specialty who trained at the same institution.
Class of 1976 at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Friday?
Dr. Friday is a cardiologist in Stanford, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
What is Dr. Friday's address?
Dr. Friday is listed at 300 Pasteur Dr, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Friday?
The number on file is (650) 723-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Friday's NPI number?
Dr. Friday's National Provider Identifier is 1326067448. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Friday train?
Dr. Friday attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Friday been practicing?
Dr. Friday has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Friday perform?
According to Medicare billing data, Dr. Friday provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Friday confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Friday. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.