Christopher Woo, M.D.
NPI 1851573083 · Internal Medicine Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Woo, M.D. is a Internal Medicine Physician provider in Stanford, CA (NPI 1851573083).
Provider details
- NPI number
- 1851573083
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
28 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 28 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Spironolactone | 630 | 245 |
| Empagliflozinbrand: Jardiance | 618 | 222 |
| Furosemide | 315 | 150 |
| Metoprolol Succinate | 286 | 132 |
| Sacubitril/Valsartanbrand: Entresto | 215 | 65 |
| Amiodarone Hcl | 162 | 64 |
| Atorvastatin Calcium | 144 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-29
- Last updated
- 2021-12-15
Frequently asked questions
- What is Christopher Woo's NPI number?
- Christopher Woo's National Provider Identifier (NPI) is 1851573083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Woo's specialty?
- Christopher Woo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Woo located?
- Christopher Woo's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Christopher Woo's phone number?
- The practice phone number listed in the NPPES registry for Christopher Woo is (650) 723-6661.
- Does Christopher Woo accept Medicare?
- Christopher Woo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Woo's NPI active?
- Yes — Christopher Woo's NPI (1851573083) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.