Doctor profile · Federal record
Dr. Cynthia Woo, MD
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Palo Alto, CA
- NPI 1689741811
- Accepts Medicare
- 31 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
795 El Camino Real
Palo Alto, CA 943012302
(650) 321-4121 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- March 4, 2020
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- California #A60887
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689741811. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
52
Distinct HCPCS
2
Medicare allowed
$7,875
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 39 | 25 | $156 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 13 | 13 | $137 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 24. This provider delivers 2.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
42
Patients
13
Total drug cost
$11,348
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 24 | 13 | $3,177 |
| Premarin (Estrogens, Conjugated) | Brand | 18 | 0 | $8,171 |
Frequently asked questions
What is Dr. Cynthia Woo's medical specialty?
Dr. Cynthia Woo practices Obstetrics & Gynecology Physician in Palo Alto, CA.
Where does Dr. Cynthia Woo practice?
Dr. Cynthia Woo practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6503214121.
What is Dr. Cynthia Woo's NPI?
Dr. Cynthia Woo's National Provider Identifier (NPI) is 1689741811, issued by NPPES.
Does Dr. Cynthia Woo accept Medicare assignment?
Yes. Dr. Cynthia Woo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cynthia Woo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.