NPI Portal NPI Lookup & Verification

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

Mahmood Islam Siddique, D.O.

Internal Medicine Physician in Lawrenceville, NJ · enumerated 2006.

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

National Provider Identifier

1700976073

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Registry record

Entity type Individual (Type 1)
Name Mahmood Islam Siddique
Credential D.O.
Sex Male
Practice address Lawrenceville, NJ, 08648
Fax (609) 587-9955
Enumeration date Oct 14, 2006
Last updated in NPPES Nov 29, 2025

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

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 25MB05852900 (NJ) Secondary
174400000X Specialist Other Service Providers · License 25MB05852900 (NJ) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25MB05852900 (NJ) Primary
207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 25MB05852900 (NJ) Secondary
207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 25MB05852900 (NJ) Secondary
208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License 25MB05852900 (NJ) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
5548608 Medicaid NJ -

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

Is NPI 1700976073 active?
Yes, as of the latest NPPES snapshot, NPI 1700976073 is active (record last updated 2025-11-29).
How do I verify Mahmood Siddique's NPI record?
Cross-check NPI 1700976073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-29.