Physician Profile
Based in Lancaster, MA, Oren L. Weisberg, M.D. is listed in the NPI registry under ophthalmology. Oren graduated from Albert Einstein College of Medicine of Yeshiva University in 1998. Medicare claims data shows Oren provided 119 services to 102 patients. The services billed most often include exam to measure eye deviation and range of motion and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
479 OLD UNION TPKE
Lancaster, MA 01523
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
119 services · 102 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Exam to measure eye deviation and range of motion | Treatment | 92060 |
70 | More often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
49 | Less often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Oren L. Weisberg is an eye doctor in Lancaster, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Oren L. Weisberg is listed at 479 Old Union Tpke, Lancaster, MA 01523. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (978) 537-3900. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Oren L. Weisberg's National Provider Identifier is 1427079995. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Oren L. Weisberg attended Albert Einstein College of Medicine of Yeshiva University, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
Oren L. Weisberg has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Oren L. Weisberg provides treatments such as exam to measure eye deviation and range of motion, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Oren L. Weisberg. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.