Physician Profile
Unclaimed ProfileAbout THAYER
Based in Westfield, MA, John Adam Thayer, M.D. is listed in the NPI registry under ophthalmology. John graduated from University of Michigan Medical School in 1990.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Thayer specialise in?
Dr. Thayer is an ophthalmology in Westfield, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Thayer located?
Dr. Thayer is listed at 501 SOUTHAMPTON RD SUITE D, Westfield, MA 01085. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Thayer's phone number?
The number on file is (413) 572-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Thayer?
Dr. Thayer's National Provider Identifier is 1386628279. 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. Thayer go to medical school?
Dr. Thayer attended University of Michigan Medical School, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Thayer have?
Dr. Thayer has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Thayer do most often?
According to Medicare billing data, Dr. Thayer performs procedures including insertion of drug delivery implant into tear duct of eye, 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
Is Dr. Thayer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Thayer. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (413) 572-3000
- Email not available
Practice Locations
501 SOUTHAMPTON RD SUITE D
Westfield, MA 01085
Procedures Most Often Billed to Medicare
3,517 services · 2,830 patients · 22 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of drug delivery implant into tear duct of eye | Procedure | 68841 |
181 |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
157 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
68 |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
56 |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
43 |
| Creation of eye fluid drainage tracts in iris using a laser, per session | Procedure | 66761 |
18 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
31 |
| Established patient complete exam of visual system | Treatment | 92014 |
922 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
437 |
| Imaging of optic nerve | Treatment | 92133 |
432 |
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 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at University of Michigan Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1990 at University of Michigan Medical School 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of drug delivery implant into tear duct of eye 8
Providers in MA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.