Elena Beatriz Mier-Trotter, M.D.
Ophthalmology Physician · Rockville, MD
Elena Beatriz Mier-Trotter, M.D. is an ophthalmology physician with a practice address in Rockville, Maryland, and NPI 1891072633, issued on Nov 8, 2011. Check the license (Maryland D0050580, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Elena Beatriz Mier-Trotter
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- D0050580 MD
Self-reported in NPPES; status is on the state search - Practice location
- 11300 Rockville Pike, Rockville, MD 20852
- Phone
- (301) 896-0890
- Enumerated
- Nov 8, 2011
- Record last updated
- Nov 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (301) 896-0968
- Medicare enrollment
- Enrolled (PECOS I20140325000338); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 588 in Maryland → Look up another NPI →
Also registered at 11300 Rockville Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katharine Ambrose, MSPT, DPTPhysical Therapist1497779664
- Paula Domenici, PHDPsychologist1336202928
- Mina Ebrahimi Daryani, DMDPeriodontics1801326111
- Jill Fuster, M.S., R.D., L.D.N.Registered Dietitian1760839989
- Joan Goodman, M.S.W., L.C.S.W.Clinical Social Worker1134457385
- Kathy HennessyPhysical Therapist1518398577
Verify Elena Beatriz Mier-Trotter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0050580Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average ophthalmology physician in 2024
266 Medicare Part D claims for 40 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Latanoprost99 claims
- Timolol Maleate56 claims
- Brimonidine Tartrate22 claims
- Erythromycin16 claims
- Ketorolac Tromethamine15 claims
- Dorzolamide Hcl12 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.
Elena Beatriz Mier-Trotter among 588 ophthalmology physician records in Maryland
Elena Beatriz Mier-Trotter, M.D. is one of 588 ophthalmology physician records with a practice address in Maryland. 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 2011, is newer than 77% of them.
- NPI issued2011 · 77% of these records are older, 22% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1972 · median 2002 among the 369 with a school on file
- Record last updated2011 · 65% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Maryland
There are 588 ophthalmology physician records in Maryland.
All 588 in Maryland → Every provider in Rockville → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Stacy Bang, M.D.Rockville, MD 208521053589499
- Robert Chu, M.D.Rockville, MD 208521811997117
- Lawrence Frank, M.D.Rockville, MD 208521619998036
- Reena Garg, MDRockville, MD 208521457586299
- Seema Gupta, M.D.Rockville, MD 208521710973375
- Murray Hammerman, M.D.Rockville, MD 208521427120666
- Mark Hendrix, M.D.Rockville, MD 208521043219124
- Natasha Herz, MDRockville, MD 208521104830447
Common questions
What is Elena Beatriz Mier-Trotter, M.D.'s NPI number?
Elena Beatriz Mier-Trotter, M.D.'s National Provider Identifier (NPI) is 1891072633, issued on Nov 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Elena Beatriz Mier-Trotter, M.D. located?
The NPPES record lists a practice address at 11300 Rockville Pike, Rockville, MD, 20852. Phone: (301) 896-0890. Providers update this record themselves, so call before visiting.
How can I verify Elena Beatriz Mier-Trotter, M.D.'s license?
NPPES lists Maryland license number D0050580, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elena Beatriz Mier-Trotter, M.D. prescribe under Medicare Part D?
In 2024, Elena Beatriz Mier-Trotter, M.D. had 266 Medicare Part D claims for 40 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.