Individual Healthcare Provider
Isaiah W Giese, M.D.
Provider's NPPES record last updated: December 6, 2023
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1235544933
- Primary Specialty
- Ophthalmology
- Practice Location
- Lancaster, Massachusetts
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 19, 2026, 6:14 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Ophthalmology
Allopathic & Osteopathic Physicians
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
Taxonomy code 207W00000X Ophthalmology
Ophthalmic Plastic and Reconstructive Surgery
Allopathic & Osteopathic Physicians
A physician who specializes in oculofacial plastic and reconstructive surgery. This subspecialty combines orbital and periocular surgery with facial plastic surgery, and includes aesthetic and reconstructive surgery of the face, orbit, eyelid, and lacrimal system. Practitioners evaluate, diagnose and treat conditions involving the eyelids, brows, midface, orbits, lacrimal systems and surrounding and supporting structures of the face and neck.
Taxonomy code 207WX0200X
Provider-Reported License Information
- Ophthalmology (Massachusetts)
- 290439
- Ophthalmology (Massachusetts)
- 290439
Practice Locations
Practice Location
479 Old Union Tpke
Lancaster, Massachusetts 01523-3029
Phone: (978) 537-3900
Additional Practice Location
255 Park Ave Ste 606
Worcester, Massachusetts 01609-1930
Phone: (508) 753-1032
Fax: (508) 755-5705
Additional Practice Location
74 Main St
Gardner, Massachusetts 01440-2634
Phone: (978) 632-3930
Fax: (978) 632-3158
Additional Practice Location
413 Main St
Athol, Massachusetts 01331-1842
Phone: (978) 249-4209
Fax: (978) 249-4102
Additional Practice Location
100 Powdermill Rd
Acton, Massachusetts 01720-5932
Phone: (978) 897-7212
Fax: (978) 461-0345
Record Information
- Enumeration Date
- June 23, 2014
- Provider's NPPES Record Last Updated
- December 6, 2023
- Certification Date
- December 6, 2023
- NPISignal NPPES Dataset
- August 2026
See Something Wrong?
Incorrect provider information
Everything on this page comes directly from the NPPES data CMS publishes. NPISignal cannot edit a provider's record — only the provider or organization can, directly through NPPES.
Update a record through NPPESSomething wrong with this page?
If NPISignal is displaying this data incorrectly — a formatting error, a broken link, a mismatch with the source file — let us know.
Report a display issue