Orion Thomas Ayer, M.D.
Ophthalmology Physician · St Petersburg, FL
Orion Thomas Ayer, M.D. is an ophthalmology physician with a practice address in St Petersburg, Florida, and NPI 1093786634, issued on Jan 31, 2006. Check the license (Florida ME34930, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Orion Thomas Ayer
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- ME34930 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1955 1St Ave N, St Petersburg, FL 33713
- Phone
- (727) 894-3937
- Enumerated
- Jan 31, 2006
- Record last updated
- Apr 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (727) 821-0771
- Medicaid ID
- 066489800 FL
- Medicare enrollment
- Enrolled (PECOS I20120126000240); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 1974
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,581 in Florida → Look up another NPI →
Also registered at 1955 1St Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brenda Kinard, M.D.Specialist1922073899
- Soyoung Sung, M.D.Ophthalmology Physician1194786731
- Shannon Whitlock, D.C.Chiropractor1427443209
Verify Orion Thomas Ayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME34930Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average ophthalmology physician in 2024
396 Medicare Part D claims for 75 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Brimonidine Tartrate93 claims
- Ketorolac Tromethamine48 claims
- Latanoprost42 claims
- Prednisolone Acetate27 claims
- Erythromycin19 claims
- Loteprednol Etabonate17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Orion Thomas Ayer among 1,581 ophthalmology physician records in Florida
Orion Thomas Ayer, M.D. is one of 1,581 ophthalmology physician records with a practice address in Florida. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.
- NPI issued2006 · 18% of these records are older, 41% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1974 · median 1999 among the 1,039 with a school on file
- Record last updated2014 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Florida
There are 1,581 ophthalmology physician records in Florida.
All 1,581 in Florida → Every provider in St Petersburg → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Todd Berger, MDSt Petersburg, FL 337131205836418
- Patrick Carrier, MDSt Petersburg, FL 337131245422294
- Kurt Repke, MDSt Petersburg, FL 337131275532772
- Soyoung Sung, M.D.St Petersburg, FL 337131194786731
- Stephen Updegraff, MDSt Petersburg, FL 337131245232446
- David Eichenbaum, M.D.St Petersburg, FL 337111144251356
- Lewis Apter, M.D.St Petersburg, FL 337101649215369
- Brent Carmack, M.D P.ASt Petersburg, FL 337161841391661
Common questions
What is Orion Thomas Ayer, M.D.'s NPI number?
Orion Thomas Ayer, M.D.'s National Provider Identifier (NPI) is 1093786634, issued on Jan 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Orion Thomas Ayer, M.D. located?
The NPPES record lists a practice address at 1955 1St Ave N, St Petersburg, FL, 33713. Phone: (727) 894-3937. Providers update this record themselves, so call before visiting.
How can I verify Orion Thomas Ayer, M.D.'s license?
NPPES lists Florida license number ME34930, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Orion Thomas Ayer, M.D. prescribe under Medicare Part D?
In 2024, Orion Thomas Ayer, M.D. had 396 Medicare Part D claims for 75 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.