Yann Olaf Wester, MD
Internal Medicine Physician · Philadelphia, PA
Yann Olaf Wester, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1699261644, issued on Jul 2, 2018. Check the license (Pennsylvania MT217017, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Yann Olaf Wester
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MT217017 PA
Self-reported in NPPES; status is on the state search - Practice location
- 5501 Old York RD Ste 1, Philadelphia, PA 19141
- Phone
- (610) 209-6596
- Enumerated
- Jul 2, 2018
- Record last updated
- Jul 2, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 5501 Old York RD Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shakelah Ahmady, CRNPPediatric Nurse Practitioner1669139887
- Eman Ahmed, DOStudent in an Organized Health Care Education/Training Program1194518340
- Elise Ahn, MDStudent in an Organized Health Care Education/Training Program1639009095
Verify Yann Olaf Wester in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MT217017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 82.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Yann Olaf Wester among 7,300 internal medicine physician records in Pennsylvania
Yann Olaf Wester, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 71% of them.
- NPI issued2018 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2018 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Richard Allman, MDPhiladelphia, PA 191411316908015
- Jody Borgman, MDPhiladelphia, PA 191411235106378
- Jacqueline Bowers, MDPhiladelphia, PA 191411619944626
- Mark Capkin, MDPhiladelphia, PA 191411114994258
- Shivanandh Chandrasekaran, MDPhiladelphia, PA 191411205824109
- Rodney Elkin, M.D.Philadelphia, PA 191411376580506
- Anita Govil, MDPhiladelphia, PA 191411174583462
- Rohit Gulati, M.D.Philadelphia, PA 191411790748408
Common questions
What is Yann Olaf Wester, MD's NPI number?
Yann Olaf Wester, MD's National Provider Identifier (NPI) is 1699261644, issued on Jul 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Yann Olaf Wester, MD located?
The NPPES record lists a practice address at 5501 Old York RD Ste 1, Philadelphia, PA, 19141. Phone: (610) 209-6596. Providers update this record themselves, so call before visiting.
How can I verify Yann Olaf Wester, MD's license?
NPPES lists Pennsylvania license number MT217017, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Yann Olaf Wester, MD's MIPS final score?
The 2023 MIPS final score is 82.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.