Physician Profile
Crystal L. Zhang, MD
Unclaimed ProfileAbout Dr. Zhang
Based in Waltham, MA, Crystal L. Zhang, MD is listed in the NPI registry under ophthalmology. Crystal graduated from Medical University of South Carolina College of Medicine in 2018. Crystal is also listed as specializing in ophthalmology — cornea & external disease. Medicare claims data shows Crystal provided 494 services to 400 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and imaging of retina. NPI 1376047415 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
- (781) 487-2200
- Email not available
Practice Locations
195 WEST ST
Waltham, MA 02451
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
494 services · 400 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
36 | Less often than most peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
26 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
61 | As often as other peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
34 | Less often than most peers in Ophthalmology |
| Ct scan of cornea | Treatment | 92025 |
33 | 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 |
132 | 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 |
127 | 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 |
45 | 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 4
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 Waltham 8
Same specialty, same city.
Also performs Removal of cataract with insertion of prosthetic lens 7
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Zhang?
Dr. Zhang is an eye doctor in Waltham, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is Dr. Zhang's address?
Dr. Zhang is listed at 195 West St, Waltham, MA 02451. 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. Zhang?
The number on file is (781) 487-2200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Zhang?
Dr. Zhang's National Provider Identifier is 1376047415. 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. Zhang train?
Dr. Zhang attended Medical University of South Carolina College of Medicine, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Zhang have?
Dr. Zhang has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Zhang perform?
According to Medicare billing data, Dr. Zhang performs procedures including removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as imaging of retina and measurement of corneal curvature and depth of eye, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Zhang's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zhang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.