Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven L Berk, MD

Ophthalmology Physician in Worcester, MA · enumerated 2006.

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

National Provider Identifier

1841251824

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Registry record

Entity type Individual (Type 1)

Name Steven L Berk

Credential MD

Sex Male

Practice address 27-29 Mechanic St, Worcester, MA, 01608

Phone (508) 753-2159

Fax (508) 753-5784

Enumeration date Mar 30, 2006

Last updated in NPPES Nov 14, 2015

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 150108 (NY) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 045654 (CT) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 54627 (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
001456541	Medicaid	CT	-
042472266	Other	-	PRIVATE HEALTHCARE SYSTEM
042472266	Other	-	RAILROAD MEDICARE
0800299	Other	-	EVERCARE
5238488	Other	-	AETNA US HEALTHCARE
042472266	Other	-	ONE HEALTH PLAN
52833A	Other	NY	MEDICARE PTAN
1059575	Other	-	FIRST HEALTH
2184329	Other	-	CIGNA HEALTH PLAN

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

What specialty is Steven Berk?

Steven Berk is registered in NPPES with the primary taxonomy of Ophthalmology Physician. 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 2015-11-14.