Isaiah W Giese, M.D.
Ophthalmology · Lancaster, MA
At a glance
479 Old Union Tpke, Lancaster, MA 01523-3029
Published activity: Melanoma (skin cancer) excision. View counts and coverage
NPPES record updated Dec 6, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
479 Old Union TpkeLancaster, MA 01523-3029
Additional reported practice locations
255 Park Ave Ste 606Worcester, MA 016091930
Phone: 5087531032
Fax: 5087555705 74 Main St
Gardner, MA 014402634
Phone: 9786323930
Fax: 9786323158 100 Powdermill Rd
Acton, MA 017205932
Phone: 9788977212
Fax: 9784610345 413 Main St
Athol, MA 013311842
Phone: 9782494209
Fax: 9782494102
Education & affiliations
- Medical / professional school
- Boston University School Of Medicine
- Graduation year
- 2014
- CMS specialties
- Ophthalmology
Practice groups
Reported hospital affiliations
- Umass Memorial Healthalliance Hospitals Leominster, MA
- Umass Memorial Medical Center/University Campus Worcester, MA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Melanoma (skin cancer) excision | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Ophthalmology
- Taxonomy code
- 207W00000X
- Enumeration date
- Jun 23, 2014
- Record updated
- Dec 6, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207WX0200X
License reported: 290439 MA
207W00000X · Primary
License reported: 290439 MA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
479 Old Union TpkeLancaster, MA 01523-3029
- Phone
- (978) 537-3900
- Fax
- (978) 537-6030
Mailing address
479 OLD UNION TPKELANCASTER, MA 015233029
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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