Physician Profile
Unclaimed ProfileAbout RIDDLE
Based in Nashua, NH, Patrick Joseph Riddle, M.D. is listed in the NPI registry under ophthalmology. Patrick graduated from Creighton University School of Medicine in 1971.
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. Riddle specialise in?
Dr. Riddle is an ophthalmology in Nashua, NH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Riddle located?
Dr. Riddle is listed at 5 COLISEUM AVE, Nashua, NH 03063. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Riddle's phone number?
The number on file is (603) 882-9800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Riddle?
Dr. Riddle's National Provider Identifier is 1811992993. 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. Riddle go to medical school?
Dr. Riddle attended Creighton University School of Medicine, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Riddle have?
Dr. Riddle has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Riddle do most often?
According to Medicare billing data, Dr. Riddle provides treatments such as established patient complete exam of visual system and 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
Is Dr. Riddle's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Riddle. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (603) 882-9800
- Email not available
Practice Locations
5 COLISEUM AVE
Nashua, NH 03063
Procedures Most Often Billed to Medicare
2,221 services · 1,961 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
842 |
| Photography of the retina | Treatment | 92250 |
321 |
| Imaging of retina | Treatment | 92134 |
173 |
| Exam of visual field with extended testing | Treatment | 92083 |
119 |
| Imaging of optic nerve | Treatment | 92133 |
103 |
| New patient complete exam of visual system | Treatment | 92004 |
60 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
57 |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
37 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
410 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
63 |
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.
Other ophthalmology specialists at this location 6
Same specialty, same street address — most likely the same department or group.
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 Creighton University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 11 related providers in 2 groups
Class of 1971 at Creighton University School of Medicine 3
Providers who graduated from the same medical school in the same year.
Also performs Established patient complete exam of visual system 8
Providers in NH 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.