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Edit this profileAt a glance
- 20 Southbridge Rd, Charlton, MA 01507
About Dr. Mahony
Based in Charlton, MA, Sara A. Mahony, MD, PHARMD is listed in the NPI registry under ophthalmology. Sara graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 2007. Medicare claims data shows Sara provided 1,847 services to 1,603 patients. The services billed most often include exam of the internal drainage system of eye, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and exam of visual field with extended testing. NPI 1902006539 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (508) 765-9068
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
20 SOUTHBRIDGE RD
Charlton, MA 01507
Conditions Commonly Evaluated or Treated
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.
Conditions
Eye injury and cancer
- Chemical injury to the eye
- Foreign body in the eye
- Hyphema
- Open-globe eye injury
Inflammation, neurologic, and orbit
- Optic neuritis
- Optic neuropathy
- Orbital cellulitis
- Thyroid eye disease
- Uveitis
Most searched conditions
- Cataracts
- Diabetic retinopathy
- Dry eye
- Glaucoma
- Macular degeneration
Cornea and external eye
- Blepharitis
- Corneal abrasion
- Corneal ulcer
- Keratoconus
- Pink eye
- Pterygium
Eyelid and tear drainage
- Blocked tear duct
- Chalazion
- Drooping eyelid
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
- Epiretinal membrane
- Retinal detachment
Eye injuries
- Foreign Object in Eye
Retina & vitreous
- Eye Floaters and Flashes
Procedures & services
Cataract and lens
- Cataract surgery with lens implant
- Laser-assisted cataract surgery
- Intraocular lens exchange
- YAG laser capsulotomy
Cornea and refractive
- Endothelial corneal transplant
Emergency and minor
- Corneal rust-ring removal
- Removal of an eye foreign body
- Repair of an eye or eyelid laceration
- Repair of ruptured globe
Examination and imaging
- Eye ultrasound
- Slit-lamp examination
- Visual-field testing
- Corneal topography
- Fluorescein angiography
Eyelid, tear duct, and muscle
- Chalazion removal
- Ectropion repair
- Eyelid surgery
- Tear-duct probing
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Tear-duct bypass surgery
Glaucoma
- Cyclophotocoagulation
- Trabeculectomy
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Retina
- Macular hole surgery
- Pneumatic retinopexy
- Retinal laser treatment
- Scleral buckle surgery
- Vitrectomy
Most searched procedures
- Cataract surgery
- Eye exam
- LASIK
- Retina surgery
Corneal procedures
- Amniotic Membrane Eye Graft
Eye diagnostics
- Optical Coherence Tomography Scan
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
- Stye Removal
Laser eye surgery
- Laser Floater Removal
Laser procedures
- Laser Treatment for Retinal Tear
Laser vision correction
- SMILE Eye Surgery
Refractive surgery
- Clear Lens Exchange
- Implantable Contact Lenses
Tear duct & Orbit
- Orbital Decompression Surgery
- Tear Duct Plugs
Procedures Most Often Billed to Medicare
1,847 services · 1,603 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
27 | Less often than most peers in Ophthalmology |
| Closure of tear duct opening using plug | Procedure | 68761 |
25 | Less often than most peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
21 | Less often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
19 | As often as other peers in Ophthalmology |
| Ultrasound scan to determine eye length | Imaging | 76516 |
20 | As often as other peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
455 | More than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
307 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
258 | More often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
129 | As often as other peers in Ophthalmology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
339 | More often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other eye doctors at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2007 at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of recurring cataract in lens capsule using a laser 8
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Mahony?
Dr. Mahony is an eye doctor in Charlton, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is Dr. Mahony's address?
Dr. Mahony is listed at 20 Southbridge Rd, Charlton, MA 01507. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mahony?
The number on file is (508) 765-9068. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Mahony?
Dr. Mahony's National Provider Identifier is 1902006539. 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
Where did Dr. Mahony train?
Dr. Mahony attended Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mahony have?
Dr. Mahony has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mahony perform?
According to Medicare billing data, Dr. Mahony performs procedures including removal of recurring cataract in lens capsule using a laser, closure of tear duct opening using plug and removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan to determine eye length; provides treatments such as exam of the internal drainage system of eye and exam of visual field with extended testing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mahony's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mahony. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.