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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Nancy A. Balin, M.D., F.A.C.S.

Ophthalmology Physician in Northampton, MA · enumerated 2005.

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

National Provider Identifier

1629073879

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Registry record

Entity type Individual (Type 1)
Name Nancy A. Balin
Credential M.D., F.A.C.S.
Sex Female
Practice address Northampton, MA, 01062
Phone (413) 584-6666
Fax (413) 584-7428
Enumeration date Jun 15, 2005
Last updated in NPPES May 24, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 56843 (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
3013367 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

Where does Nancy Balin practice?
The practice location on file with NPPES is in Northampton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Nancy Balin?
The National Provider Identifier (NPI) for Nancy Balin is 1629073879, 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 2012-05-24.