Doctor profile · Federal record
Dr. Catherine Tambunan, NP
Nurse Practitioner · Obstetrics & Gynecology Nurse Practitioner · Stanford, CA
- NPI 1831841253
- Accepts Medicare
- MIPS 74.5 / 100 · 2023
- 5 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
- January 2022 — 4 yrs on file
- Profile last updated
- December 30, 2025
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- California #95020306
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831841253. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
734
Distinct HCPCS
7
Medicare allowed
$52,360
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 239 | 171 | $83 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 198 | 122 | $56 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 121 | 121 | $113 | |
64566 |
Insertion of lower leg neurostimulator electrode | 80 | 16 | $25 | |
57160 |
Fitting and insertion of vaginal support device | 58 | 49 | $39 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 25 | 24 | $128 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 13 | 12 | $30 |
In context: peer comparison
Among 150 peers in Stanford Nurse Practitioner, average services per provider: 60. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$40
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 1 | $40.08 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
299
Patients
116
Total drug cost
$149,428
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Myrbetriq (Mirabegron) | Brand | 75 | 26 | $52,599 |
| Estradiol | Generic | 71 | 46 | $6,895 |
| Gemtesa (Vibegron) | Brand | 70 | 22 | $73,270 |
| Methenamine Hippurate | Generic | 24 | 0 | $1,286 |
| Solifenacin Succinate | Generic | 21 | 11 | $1,439 |
| Premarin (Estrogens, Conjugated) | Brand | 15 | 0 | $7,050 |
| Estring (Estradiol) | Brand | 12 | 0 | $6,816 |
| Ciprofloxacin Hcl | Generic | 11 | 11 | $72 |
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Tambunan's medical specialty?
Dr. Catherine Tambunan practices Nurse Practitioner in Stanford, CA.
Where does Dr. Catherine Tambunan practice?
Dr. Catherine Tambunan practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Catherine Tambunan's NPI?
Dr. Catherine Tambunan's National Provider Identifier (NPI) is 1831841253, issued by NPPES.
Does Dr. Catherine Tambunan accept Medicare assignment?
Yes. Dr. Catherine Tambunan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Tambunan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.