NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven B. Esrick, M.D.

Family Medicine Physician in Florence, MA · enumerated 2005.

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

National Provider Identifier

1154321875

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Registry record

Entity type Individual (Type 1)
Name Dr. Steven B. Esrick
Credential M.D.
Sex Male
Practice address 70 Main St, Northampton Health Center, Florence, MA, 01062
Fax (413) 585-5435
Enumeration date Jul 22, 2005
Last updated in NPPES Apr 17, 2013

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 70321 (MA) 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
2345689 Other MA AETNA
736419-7908 Other MA CONNECTICARE
102721 Other MA CIGNA
52822 Other MA FALLON
000000008362 Other MA BMC
J09123 Other MA BLUE CROSS & BLUE SHIELD
070321 Other MA TUFTS
24194 Other MA HEALTH NEW ENGLAND
710702 Other MA HARVARD PILGRIM HEALTH PLAN
2212031 02 Other MA UNITED HEALTH PLAN
3055698 Medicaid MA -

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 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.
What specialty is Steven Esrick?
Steven Esrick is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-17.