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Edit this profileAt a glance
- 409 Executive Dr, Langhorne, PA 19047
About Dr. Mullin
Guy S. Mullin, M.D. practices ophthalmology in Langhorne, PA. Guy is a 1992 graduate of Georgetown University School of Medicine. Medicare claims data shows Guy provided 936 services to 728 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and removal of recurring cataract in lens capsule using a laser. The provider's National Provider Identifier (NPI) is 1285680157.
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
- (215) 860-3400
- Email not available
Practice Locations
409 EXECUTIVE DR
Langhorne, PA 19047
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
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
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
936 services · 728 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
101 | More often than most peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
71 | As often as other peers in Ophthalmology |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
69 | More often than most peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
16 | Less often than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
24 | Less often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
16 | Less often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
15 | Less 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 |
384 | More often than most 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 |
223 | As often as other peers in Ophthalmology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
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.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other eye doctors in Langhorne 8
Same specialty, same city.
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 14 related providers in 2 groups
Class of 1992 at Georgetown University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Removal of recurring cataract in lens capsule using a laser 7
Providers in PA who bill this service to Medicare most often.
Common questions
What does Guy S. Mullin specialize in?
Guy S. Mullin is an eye doctor in Langhorne, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Guy S. Mullin located?
Guy S. Mullin is listed at 409 Executive Dr, Langhorne, PA 19047. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Guy S. Mullin's phone number?
The number on file is (215) 860-3400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Guy S. Mullin?
Guy S. Mullin's National Provider Identifier is 1285680157. 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 Guy S. Mullin train?
Guy S. Mullin attended Georgetown University School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Guy S. Mullin have?
Guy S. Mullin has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Guy S. Mullin do most often?
According to Medicare billing data, Guy S. Mullin performs procedures including removal of recurring cataract in lens capsule using a laser and removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan to determine eye length and lens power and ultrasound scan of cornea to determine thickness; provides treatments such as exam of the internal drainage system of eye and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Guy S. Mullin's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Guy S. Mullin. If this is you, claiming it is free.
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