NPI Portal NPI Lookup & Verification

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

Dr. Azfar Chak, MD

Internal Medicine Physician in Nyack, NY · enumerated 2008.

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

National Provider Identifier

1043475486

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Registry record

Entity type Individual (Type 1)
Name Dr. Azfar Chak
Credential MD
Sex Male
Practice address Nyack, NY, 10960
Phone (845) 358-5006
Fax (845) 358-4340
Enumeration date Jul 24, 2008
Last updated in NPPES Dec 22, 2011

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 248157 (NY) 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
03130403 Medicaid NY -
A300000952 Other NY MEDICARE PTAN

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.

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Frequently asked questions

What is the NPI number for Azfar Chak?
The National Provider Identifier (NPI) for Azfar Chak is 1043475486, a Type 1 (individual) record in the CMS NPPES registry.
Where does Azfar Chak practice?
The practice location on file with NPPES is in Nyack, NY. 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 2011-12-22.