Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan Merrill Dietzek, M.D.

Q: What is the NPI number for Alan Dietzek?

The National Provider Identifier (NPI) for Alan Dietzek is 1134160435, a Type 1 (individual) record in the CMS NPPES registry.

Vascular Surgery Physician in Neptune, NJ · enumerated 2006.

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

National Provider Identifier

1134160435

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Registry record

Entity type Individual (Type 1)

Name Alan Merrill Dietzek

Credential M.D.

Sex Male

Practice address 19 Davis Ave Fl 4, Neptune, NJ, 07753

Phone (732) 212-6598

Fax (732) 922-2026

Enumeration date Jun 9, 2006

Last updated in NPPES Jun 16, 2025

Taxonomy & licenses

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 038845 (CT) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 25MA09413600 (NJ) 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
0V7532	Other	CT	HEALTH NET
830396	Other	CT	UNITED HEALTHCARE
AS1058	Other	CT	OXFORD
P00230453	Other	CT	RAILROAD MEDICARE
810160110	Other	CT	PHCS
8897122	Other	CT	CIGNA
2372975	Other	CT	AETNA US HEALTHCARE
1388455	Medicaid	CT	-
038845	Other	CT	CONNECTICARE

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

Where does Alan Dietzek practice?

The practice location on file with NPPES is in Neptune, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alan Dietzek?

The National Provider Identifier (NPI) for Alan Dietzek is 1134160435, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-16.