Rex Yung, M.D.
NPI 1750327128 · Pulmonary Disease Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Yung, M.D. is a Pulmonary Disease Physician provider in Oakland, CA (NPI 1750327128).
Provider details
- NPI number
- 1750327128
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 1083 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
20 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
67 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 | 41 | $226 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 26 | $75 |
Typical Medicare-allowed amounts for these services range $75–$226 (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
Additional practice locations (1)
- 1010 Three Springs Blvd Ste 110Durango, CO 81301-8296Phone: (970) 764-2750Fax: (970) 764-2778
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2025-04-07
- Certified
- 2025-04-07
Frequently asked questions
- What is Rex Yung's NPI number?
- Rex Yung's National Provider Identifier (NPI) is 1750327128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rex Yung's specialty?
- Rex Yung is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Rex Yung located?
- Rex Yung's practice location on file with NPPES is 1411 E 31st St, Oakland, CA 94602-1018.
- What is Rex Yung's phone number?
- The practice phone number listed in the NPPES registry for Rex Yung is (510) 437-4800.
- Does Rex Yung accept Medicare?
- Rex Yung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rex Yung's NPI active?
- Yes — Rex Yung's NPI (1750327128) is active in the NPPES registry as of the last update on 2025-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.