Nam Cho, M.D., PH.D.
NPI 1669668323 · Radiation Oncology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nam Cho, M.D., PH.D. is a Radiation Oncology Physician provider in Stanford, CA (NPI 1669668323).
Provider details
- NPI number
- 1669668323
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A93093 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
44 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 18 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 | $75 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 12 | $39 |
Typical Medicare-allowed amounts for these services range $39–$106 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-17
- Last updated
- 2007-09-17
Frequently asked questions
- What is Nam Cho's NPI number?
- Nam Cho's National Provider Identifier (NPI) is 1669668323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nam Cho's specialty?
- Nam Cho is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nam Cho located?
- Nam Cho's practice location on file with NPPES is 875 Blake Wilbur Dr, Stanford, CA 94305.
- What is Nam Cho's phone number?
- The practice phone number listed in the NPPES registry for Nam Cho is (650) 723-6661.
- Does Nam Cho accept Medicare?
- Nam Cho is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nam Cho's NPI active?
- Yes — Nam Cho's NPI (1669668323) is active in the NPPES registry as of the last update on 2007-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.