Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan K Summerfield, APRN, CRNA

Certified Registered Nurse Anesthetist in Stamford, CT · enumerated 2006 · practices at Gotham Medical Services.

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

National Provider Identifier

1003822776

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Registry record

Entity type Individual (Type 1)

Name Alan K Summerfield

Credential APRN, CRNA

Sex Male

Practice address 1055 Washington Blvd, Suite 440, Stamford, CT, 06901

Phone (203) 348-2614

Fax (203) 325-8677

Enumeration date Aug 1, 2006

Last updated in NPPES Jun 11, 2008

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 001123 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
004213766	Medicaid	CT	-

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 specialty is Alan Summerfield?

Alan Summerfield is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-11.