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Edit this profileAt a glance
- 4060 Butler Pike, Suite 200, Plymouth Meeting, PA 19462
About Dr. Chiang
Based in Plymouth Meeting, PA, Allen Chiang, M.D. is listed in the NPI registry under ophthalmology. Allen graduated from New York University School of Medicine in 2005. Allen is also listed as specializing in ophthalmology — retina specialist. According to Medicare claims data, Allen cared for 5,573 Medicare patients across 42,003 services. The services billed most often include injection, faricimab-svoa, 0.1 mg, injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg, and imaging of retina. NPI 1326212960 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
- (800) 331-6634
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
4060 BUTLER PIKE SUITE 200
Plymouth Meeting, PA 19462
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
Inflammation, neurologic, and orbit
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Retina & vitreous
Procedures & services
Cataract and lens
- Cataract surgery with lens implant
- Laser-assisted cataract surgery
- Intraocular lens exchange
- YAG laser capsulotomy
Cornea and refractive
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
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
42,003 services · 5,573 patients · 20 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
3,661 | More than most peers in Ophthalmology |
| Photocoagulation treatment to prevent detachment of retina | Procedure | 67145 |
29 | More often than most peers in Ophthalmology |
| Removal of membrane of retina with removal of internal limiting membrane of retina | Procedure | 67042 |
21 | As often as other peers in Ophthalmology |
| 2d ultrasound scan of eye tissue and structures | Imaging | 76512 |
33 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
5,133 | More than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
2,431 | More than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
844 | More often than most peers in Ophthalmology |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
207 | More often than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
27 | Less often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
17 | 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.
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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 22 related providers in 4 groups
Other eye doctors in Plymouth Meeting 2
Same specialty, same city.
Trained at New York University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at New York University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 4
Providers in PA who bill this service to Medicare most often.
Common questions
What kind of doctor is Allen Chiang?
Allen Chiang is an eye doctor in Plymouth Meeting, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is Allen Chiang's address?
Allen Chiang is listed at 4060 Butler Pike Suite 200, Plymouth Meeting, PA 19462. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Allen Chiang?
The number on file is (800) 331-6634. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Allen Chiang's NPI number?
Allen Chiang's National Provider Identifier is 1326212960. 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 Allen Chiang train?
Allen Chiang attended New York University School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Allen Chiang been practicing?
Allen Chiang has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What procedures does Allen Chiang perform?
According to Medicare billing data, Allen Chiang performs procedures including injection of drug into eye, photocoagulation treatment to prevent detachment of retina and removal of membrane of retina with removal of internal limiting membrane of retina; reads or performs imaging such as 2d ultrasound scan of eye tissue and structures; provides treatments such as imaging of retina and established patient problem focused exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Allen Chiang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Allen Chiang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.