Elizabeth Baker Diener, O.D.
Optometrist · Reading, PA
Elizabeth Baker Diener, O.D. is an optometrist with a practice address in Reading, Pennsylvania, and NPI 1265651194, issued on Apr 25, 2007. Check the license (Pennsylvania OEG001061, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Baker Diener
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OEG001061 PA
Self-reported in NPPES; status is on the state search - Practice location
- 838 Penn St, Reading, PA 19602
- Phone
- (610) 988-4838
- Enumerated
- Apr 25, 2007
- Record last updated
- Oct 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 018810340001 PA
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 838 Penn St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Einas Batarseh, MDInternal Medicine Physician1225698764
- Bradford Bobrin, MDPsychiatry Physician1255365367
- John Bukey, CRNPNurse Practitioner1972599538
- Maria Carbo-Gruver, CRNPPrimary Care Nurse Practitioner1336833276
- Morgan Driggs, MA, LPCAddiction (Substance Use Disorder) Counselor1770191025
Verify Elizabeth Baker Diener in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG001061Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average optometrist in 2024
255 Medicare Part D claims for 105 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth75 claims
- Azelastine Hcl50 claims
- Latanoprost50 claims
- Timolol Maleate22 claims
- Prednisolone Acetate13 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.
Elizabeth Baker Diener among 2,640 optometrist records in Pennsylvania
Elizabeth Baker Diener, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 38% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Reading → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Michael Magro, ODReading, PA 196011508876186
- Sheila Miller, O.D.Reading, PA 196051124114830
- Jessica Reiniger, ODReading, PA 196051174528624
- Daivd Altenderfer, ODReading, PA 196061194848994
- David Foster, O.D.Reading, PA 196061770575276
- Julie Foster, ODReading, PA 196061457812505
- Jacquelyn Horst, O.D.Reading, PA 196061164652772
- Lisa McDevitt, O.D.Reading, PA 196071750384863
Common questions
What is Elizabeth Baker Diener, O.D.'s NPI number?
Elizabeth Baker Diener, O.D.'s National Provider Identifier (NPI) is 1265651194, issued on Apr 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Baker Diener, O.D. located?
The NPPES record lists a practice address at 838 Penn St, Reading, PA, 19602. Phone: (610) 988-4838. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Baker Diener, O.D.'s license?
NPPES lists Pennsylvania license number OEG001061, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Baker Diener, O.D. prescribe under Medicare Part D?
In 2024, Elizabeth Baker Diener, O.D. had 255 Medicare Part D claims for 105 beneficiaries; the average among optometrist prescribers was 277. 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.