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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Abraham Yap Sim, M.D.

Ophthalmology Physician in Toledo, OH · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1053316240

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Registry record

Entity type Individual (Type 1)
Name Dr. Abraham Yap Sim
Credential M.D.
Sex Male
Practice address Toledo, OH, 43623
Phone (419) 475-9251
Fax (419) 475-1407
Enumeration date Jun 15, 2005
Last updated in NPPES Aug 5, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 35-03-4485-S (OH) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0194356 Medicaid OH -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Abraham Sim?
The National Provider Identifier (NPI) for Abraham Sim is 1053316240, a Type 1 (individual) record in the CMS NPPES registry.
Where does Abraham Sim practice?
The practice location on file with NPPES is in Toledo, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-05.