Doctor profile · Federal record

Dr. Ronald Witteles, MD

Advanced Heart Failure and Transplant Cardiology Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Cardiovascular Disease Physician · Stanford, CA

  • NPI 1285779389
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
April 26, 2024
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207RA0001X — NUCC code
State license (1)
California #A76510

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285779389. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,092
Distinct HCPCS
10
Medicare allowed
$145,725
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 226 59 $137
99214 Established patient office or other outpatient visit, 30-39 minutes 193 176 $113
99215 Established patient office or other outpatient visit, 40-54 minutes 168 121 $166
99291 Critical care, first 30-74 minutes 119 38 $240
93295 Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 82 51 $43
99205 New patient office or other outpatient visit, 60-74 minutes 52 52 $209
99238 Hospital discharge day management, 30 minutes or less 42 41 $93
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 37 36 $197
93283 Programming of dual lead implantable defibrillator system 36 32 $65
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 35 21 $34

In context: peer comparison

Among 7 peers in this city , average services per provider: 105. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$51,656
Transactions
30
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 12 $34,407.67
Alnylam Pharmaceuticals Inc. 16 $10,117.24
Alexion Pharmaceuticals, Inc. 1 $5,520.00
AstraZeneca Pharmaceuticals LP 1 $1,611.00

By nature of payment

Consulting Fee
$31,662
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$14,962
Travel and Lodging
$4,638
Food and Beverage
$394

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,801
Patients
698
Total drug cost
$13,187,477
Drug Type Claims Patients Total cost
Vyndamax (Tafamidis) Brand 500 49 $10,983,005
Spironolactone Generic 333 95 $4,871
Eliquis (Apixaban) Brand 271 66 $342,003
Carvedilol Generic 270 83 $4,426
Furosemide Generic 251 76 $2,657
Jardiance (Empagliflozin) Brand 241 63 $291,880
Entresto (Sacubitril/Valsartan) Brand 215 58 $319,694
Metoprolol Succinate Generic 148 42 $3,266
Atorvastatin Calcium Generic 138 42 $2,899
Losartan Potassium Generic 91 36 $1,041

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ronald Witteles's medical specialty?
Dr. Ronald Witteles practices Advanced Heart Failure and Transplant Cardiology Physician in Stanford, CA.
Where does Dr. Ronald Witteles practice?
Dr. Ronald Witteles practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Ronald Witteles's NPI?
Dr. Ronald Witteles's National Provider Identifier (NPI) is 1285779389, issued by NPPES.
Does Dr. Ronald Witteles accept Medicare assignment?
Yes. Dr. Ronald Witteles accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Witteles commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.