Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Harsh W Singh, MD

Neurology Physician in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1801888433

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Registry record

Entity type Individual (Type 1)

Name Harsh W Singh

Credential MD

Sex Male

Practice address 6567 E Carondelet Dr Ste 305, Tucson, AZ, 85710

Phone (520) 881-8400

Fax (520) 829-7521

Enumeration date Aug 19, 2005

Last updated in NPPES Jun 10, 2025

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 97659 (FL) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 100944 (WI) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 58223 (AZ) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 34475 (NH) Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 57844 (GA) 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
3149150	Medicaid	NH	-
462024747H	Medicaid	GA	-
PB735	Other	FL	FL HF MA
009660300	Medicaid	FL	-
462024747G	Medicaid	GA	-

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

Is NPI 1801888433 active?

Yes, as of the latest NPPES snapshot, NPI 1801888433 is active (record last updated 2025-06-10).

How do I verify Harsh Singh's NPI record?

Cross-check NPI 1801888433 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 2025-06-10.