Karl Oliver Yu, M.D., PH.D.
NPI 1134357775 · Pediatric Infectious Diseases Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Oliver Yu, M.D., PH.D. is a Pediatric Infectious Diseases Physician provider in Buffalo, NY (NPI 1134357775).
Provider details
- NPI number
- 1134357775
- Entity type
- Individual
- Primary specialty
- Pediatric Infectious Diseases PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 253588 (NY)
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 tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$249 across 4 records (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
- 2009-06-22
- Last updated
- 2023-02-20
- Certified
- 2023-02-20
Frequently asked questions
- What is Karl Oliver Yu's NPI number?
- Karl Oliver Yu's National Provider Identifier (NPI) is 1134357775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Oliver Yu's specialty?
- Karl Oliver Yu is listed in the NPPES registry with a primary specialty of Pediatric Infectious Diseases Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Oliver Yu located?
- Karl Oliver Yu's practice location on file with NPPES is 1001 Main St Fl 4, Buffalo, NY 14203-1009.
- What is Karl Oliver Yu's phone number?
- The practice phone number listed in the NPPES registry for Karl Oliver Yu is (716) 323-0150.
- Does Karl Oliver Yu accept Medicare?
- Karl Oliver Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Oliver Yu's NPI active?
- Yes — Karl Oliver Yu's NPI (1134357775) is active in the NPPES registry as of the last update on 2023-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.