John Sunwoo, MD
NPI 1730107160 · Otolaryngology/Facial Plastic Surgery Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sunwoo, MD is a Otolaryngology/Facial Plastic Surgery Physician provider in Stanford, CA (NPI 1730107160).
Provider details
- NPI number
- 1730107160
- Entity type
- Individual
- Primary specialty
- Otolaryngology/Facial Plastic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G88324 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
97 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $75 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 24 | $150 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 16 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $110 |
| Biopsy Or Removal of Deep Lymph Nodes of Neck38510 | 11 | $322 |
Typical Medicare-allowed amounts for these services range $75–$322 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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
Additional practice locations (1)
- 801 Welch Rd2nd FloorStanford, CA 94305Phone: (650) 725-6500Fax: (650) 725-8502
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2024-04-29
- Certified
- 2024-04-29
Frequently asked questions
- What is John Sunwoo's NPI number?
- John Sunwoo's National Provider Identifier (NPI) is 1730107160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sunwoo's specialty?
- John Sunwoo is listed in the NPPES registry with a primary specialty of Otolaryngology/Facial Plastic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Sunwoo located?
- John Sunwoo's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is John Sunwoo's phone number?
- The practice phone number listed in the NPPES registry for John Sunwoo is (650) 723-4000.
- Does John Sunwoo accept Medicare?
- John Sunwoo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sunwoo's NPI active?
- Yes — John Sunwoo's NPI (1730107160) is active in the NPPES registry as of the last update on 2024-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.