Physician Profile
Unclaimed ProfileAbout RYAN
William Joseph Ryan, O.D. is a healthcare provider in Tyngsboro, MA specialising in optometry. William trained at New England College of Optometry, graduating in 1984. William is also listed as specialising in optometrist.
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 is Dr. Ryan's specialty?
Dr. Ryan is an optometry in Tyngsboro, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where can I find Dr. Ryan?
Dr. Ryan is listed at 440 MIDDLESEX RD, Tyngsboro, MA 01879. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ryan?
The number on file is (978) 649-3880. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ryan's NPI number?
Dr. Ryan's National Provider Identifier is 1487761680. 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
What is Dr. Ryan's medical education?
Dr. Ryan attended New England College of Optometry, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ryan been practising?
Dr. Ryan has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ryan known for?
According to Medicare billing data, Dr. Ryan provides treatments such as photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ryan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (978) 649-3880
- Email not available
Practice Locations
440 MIDDLESEX RD
Tyngsboro, MA 01879
Procedures Most Often Billed to Medicare
204 services · 200 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Photography of the retina | Treatment | 92250 |
105 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
71 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
28 |
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.
Trained at New England College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at New England College of Optometry 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Photography of the retina 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.