Christina Yoon, MD, MPH
NPI 1922275528 · Pulmonary Disease Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Yoon, MD, MPH is a Pulmonary Disease Physician provider in San Francisco, CA (NPI 1922275528).
Provider details
- NPI number
- 1922275528
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A108948 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
241 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 100 | $232 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 55 | $10 |
| Test to Measure Expiratory Airflow and Volume94010 | 43 | $9 |
| Test to Determine Lung Volumes Using Sensors94726 | 29 | $13 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 14 | $11 |
Typical Medicare-allowed amounts for these services range $9–$232 (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
- 2008-05-13
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Christina Yoon's NPI number?
- Christina Yoon's National Provider Identifier (NPI) is 1922275528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Yoon's specialty?
- Christina Yoon is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Yoon located?
- Christina Yoon's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Christina Yoon's phone number?
- The practice phone number listed in the NPPES registry for Christina Yoon is (415) 206-2486.
- Does Christina Yoon accept Medicare?
- Christina Yoon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Yoon's NPI active?
- Yes — Christina Yoon's NPI (1922275528) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.