Doctor profile · Federal record
Dr. Susan Ziolkowski, MD
Nephrology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Stanford, CA
- NPI 1841566932
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 14 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- March 2012 — 14 yrs on file
- Profile last updated
- April 24, 2024
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A135969
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841566932. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
839
Distinct HCPCS
10
Medicare allowed
$96,322
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 172 | 69 | $56 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 142 | 87 | $166 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 135 | 94 | $113 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 114 | 65 | $91 | |
90945 |
Dialysis procedure including 1 evaluation | 49 | 13 | $101 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 44 | 41 | $76 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 39 | 39 | $149 | |
90935 |
Hemodialysis procedure with physician evaluation | 36 | 27 | $82 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 36 | 36 | $209 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 22 | 13 | $339 |
In context: peer comparison
Among 17 peers in Stanford Nephrology Physician, average services per provider: 65. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$254
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 2 | $253.66 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
525
Patients
118
Total drug cost
$110,381
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Losartan Potassium | Generic | 85 | 29 | $1,499 |
| Amlodipine Besylate | Generic | 67 | 22 | $1,141 |
| Jardiance (Empagliflozin) | Brand | 58 | 13 | $62,041 |
| Furosemide | Generic | 55 | 19 | $516 |
| Calcitriol | Generic | 43 | 12 | $1,044 |
| Lisinopril | Generic | 32 | 12 | $566 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 27 | 0 | $38,300 |
| Calcium Acetate | Generic | 25 | 0 | $2,561 |
| Hydralazine Hcl | Generic | 25 | 0 | $603 |
| Carvedilol | Generic | 24 | 11 | $593 |
Hospital affiliations
Frequently asked questions
What is Dr. Susan Ziolkowski's medical specialty?
Dr. Susan Ziolkowski practices Nephrology Physician in Stanford, CA.
Where does Dr. Susan Ziolkowski practice?
Dr. Susan Ziolkowski practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Susan Ziolkowski's NPI?
Dr. Susan Ziolkowski's National Provider Identifier (NPI) is 1841566932, issued by NPPES.
Does Dr. Susan Ziolkowski accept Medicare assignment?
Yes. Dr. Susan Ziolkowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Susan Ziolkowski commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.