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Edit this profileAt a glance
- 44439 17Th St W # 210, Lancaster, CA 93534
About Dr. Hamaker
Nathan C. Hamaker, MD is a healthcare provider in Lancaster, CA specializing in ophthalmology. Nathan trained at University of Texas Medical School at Houston, graduating in 2003. According to Medicare claims data, Nathan cared for 1,488 Medicare patients across 1,630 services. The services billed most often include established patient complete exam of visual system, established patient problem focused exam of visual system, and imaging of optic nerve. This provider record is associated with NPI 1104852292.
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
- (816) 838-3464
- Email not available
Practice Locations
44439 17TH ST W # 210
Lancaster, CA 93534
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
1,630 services · 1,488 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
81 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
26 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
22 | As often as other peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
91 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
555 | More often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
172 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
150 | More often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
130 | More often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
99 | As often as other peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
90 | 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.
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 Lancaster 8
Same specialty, same city.
Trained at University of Texas Medical School at Houston 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2003 at University of Texas Medical School at Houston 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Hamaker specialize in?
Dr. Hamaker is an eye doctor in Lancaster, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Dr. Hamaker located?
Dr. Hamaker is listed at 44439 17Th St W # 210, Lancaster, CA 93534. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Hamaker's phone number?
The number on file is (816) 838-3464. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Hamaker's NPI number?
Dr. Hamaker's National Provider Identifier is 1104852292. 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. Hamaker go to medical school?
Dr. Hamaker attended University of Texas Medical School at Houston, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Hamaker been practicing?
Dr. Hamaker has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Hamaker do most often?
According to Medicare billing data, Dr. Hamaker performs procedures including removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system 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 Dr. Hamaker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hamaker. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.