Doctor profile · Federal record
Dr. Louisa Ustrzynski, DNP
Nurse Practitioner · Registered Nurse · Adult Health Nurse Practitioner · Stanford, CA
- NPI 1346627767
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 11 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
- May 2015 — 11 yrs on file
- Profile last updated
- December 30, 2025
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State licenses (2)
- California #95002676 · California #777746
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346627767. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
204
Distinct HCPCS
5
Medicare allowed
$11,886
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 94 | 82 | $65 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 63 | 56 | $35 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 20 | 20 | $80 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 15 | 15 | $96 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 12 | 12 | $47 |
In context: peer comparison
Among 150 peers in Stanford Nurse Practitioner, average services per provider: 60. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$1,217
Transactions
8
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Icotec Medical INC. | 8 | $1,217.20 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
26
Patients
11
Total drug cost
$478
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 15 | 0 | $320 |
| Dexamethasone | Generic | 11 | 11 | $159 |
Hospital affiliations
Frequently asked questions
What is Dr. Louisa Ustrzynski's medical specialty?
Dr. Louisa Ustrzynski practices Nurse Practitioner in Stanford, CA.
Where does Dr. Louisa Ustrzynski practice?
Dr. Louisa Ustrzynski practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Louisa Ustrzynski's NPI?
Dr. Louisa Ustrzynski's National Provider Identifier (NPI) is 1346627767, issued by NPPES.
Does Dr. Louisa Ustrzynski accept Medicare assignment?
Yes. Dr. Louisa Ustrzynski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louisa Ustrzynski commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.