Michael Yim, MD
NPI 1295834042 · Pulmonary Disease Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Yim, MD is a Pulmonary Disease Physician provider in San Francisco, CA (NPI 1295834042).
Provider details
- NPI number
- 1295834042
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A78336 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
35 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 35 | $84 |
Typical Medicare-allowed amounts for these services range $84–$84 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Budesonide/Formoterol Fumaratebrand: Breyna | 174 | 44 |
| Prednisone | 103 | 39 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 81 | 31 |
| Azithromycin | 68 | 31 |
| Tiotropium Bromidebrand: Spiriva Respimat | 63 | 28 |
| Fluticasone Propion/Salmeterolbrand: Advair Hfa | 56 | 18 |
| Furosemide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2021-12-14
Frequently asked questions
- What is Michael Yim's NPI number?
- Michael Yim's National Provider Identifier (NPI) is 1295834042, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Yim's specialty?
- Michael Yim is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Yim located?
- Michael Yim's practice location on file with NPPES is 2351 Clay St, San Francisco, CA 94115-1931.
- What is Michael Yim's phone number?
- The practice phone number listed in the NPPES registry for Michael Yim is (415) 923-3421.
- Does Michael Yim accept Medicare?
- Michael Yim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Yim's NPI active?
- Yes — Michael Yim's NPI (1295834042) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.